[{"abstract":[{"lang":"eng","text":"<jats:p>Exciton polariton condensates are macroscopic coherent states in which topological excitations can be observed. In this work, we observe the excitation of the vortices and realize tuning the topological charge by manipulating the pumping configurations. Using a digital micromirror device, we constructed an annular pumping pattern where the inner and outer rings can be easily tuned. Both the number and the topological charge of the vortices can be changed by slightly tuning the inner ring position against the outer ring. The experimental results can be reproduced in theory by the Gross–Pitaevskii equation. Our work offers to generate and manipulate vortices in exciton polariton condensates using a straightforward optical method.</jats:p>"}],"status":"public","type":"journal_article","publication":"Applied Physics Letters","article_number":"121103","language":[{"iso":"eng"}],"project":[{"name":"Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"}],"_id":"62862","user_id":"16199","department":[{"_id":"15"},{"_id":"170"},{"_id":"297"},{"_id":"705"},{"_id":"35"},{"_id":"230"},{"_id":"27"}],"year":"2025","citation":{"chicago":"Ai, Qiang, Xuekai Ma, Franziska Barkhausen, Xiaokun Zhai, Chunzi Xing, Xinmiao Yang, Peilin Wang, et al. “Tuning Polariton Vortices in an Asymmetric Ring Potential.” <i>Applied Physics Letters</i> 127, no. 12 (2025). <a href=\"https://doi.org/10.1063/5.0287076\">https://doi.org/10.1063/5.0287076</a>.","ieee":"Q. Ai <i>et al.</i>, “Tuning polariton vortices in an asymmetric ring potential,” <i>Applied Physics Letters</i>, vol. 127, no. 12, Art. no. 121103, 2025, doi: <a href=\"https://doi.org/10.1063/5.0287076\">10.1063/5.0287076</a>.","ama":"Ai Q, Ma X, Barkhausen F, et al. Tuning polariton vortices in an asymmetric ring potential. <i>Applied Physics Letters</i>. 2025;127(12). doi:<a href=\"https://doi.org/10.1063/5.0287076\">10.1063/5.0287076</a>","apa":"Ai, Q., Ma, X., Barkhausen, F., Zhai, X., Xing, C., Yang, X., Wang, P., Liu, T., Zhang, Y., Gu, Y., Li, P., Li, Z., Hatzopoulos, Z., Savvidis, P. G., Schumacher, S., &#38; Gao, T. (2025). Tuning polariton vortices in an asymmetric ring potential. <i>Applied Physics Letters</i>, <i>127</i>(12), Article 121103. <a href=\"https://doi.org/10.1063/5.0287076\">https://doi.org/10.1063/5.0287076</a>","mla":"Ai, Qiang, et al. “Tuning Polariton Vortices in an Asymmetric Ring Potential.” <i>Applied Physics Letters</i>, vol. 127, no. 12, 121103, AIP Publishing, 2025, doi:<a href=\"https://doi.org/10.1063/5.0287076\">10.1063/5.0287076</a>.","short":"Q. Ai, X. Ma, F. Barkhausen, X. Zhai, C. Xing, X. Yang, P. Wang, T. Liu, Y. Zhang, Y. Gu, P. Li, Z. Li, Z. Hatzopoulos, P.G. Savvidis, S. Schumacher, T. Gao, Applied Physics Letters 127 (2025).","bibtex":"@article{Ai_Ma_Barkhausen_Zhai_Xing_Yang_Wang_Liu_Zhang_Gu_et al._2025, title={Tuning polariton vortices in an asymmetric ring potential}, volume={127}, DOI={<a href=\"https://doi.org/10.1063/5.0287076\">10.1063/5.0287076</a>}, number={12121103}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Ai, Qiang and Ma, Xuekai and Barkhausen, Franziska and Zhai, Xiaokun and Xing, Chunzi and Yang, Xinmiao and Wang, Peilin and Liu, Tianyu and Zhang, Yong and Gu, Yazhou and et al.}, year={2025} }"},"intvolume":"       127","publication_status":"published","publication_identifier":{"issn":["0003-6951","1077-3118"]},"issue":"12","title":"Tuning polariton vortices in an asymmetric ring potential","doi":"10.1063/5.0287076","date_updated":"2025-12-04T12:27:02Z","publisher":"AIP Publishing","author":[{"first_name":"Qiang","full_name":"Ai, Qiang","last_name":"Ai"},{"full_name":"Ma, Xuekai","id":"59416","last_name":"Ma","first_name":"Xuekai"},{"id":"63631","full_name":"Barkhausen, Franziska","last_name":"Barkhausen","first_name":"Franziska"},{"last_name":"Zhai","full_name":"Zhai, Xiaokun","first_name":"Xiaokun"},{"first_name":"Chunzi","full_name":"Xing, Chunzi","last_name":"Xing"},{"full_name":"Yang, Xinmiao","last_name":"Yang","first_name":"Xinmiao"},{"first_name":"Peilin","last_name":"Wang","full_name":"Wang, Peilin"},{"first_name":"Tianyu","full_name":"Liu, Tianyu","last_name":"Liu"},{"first_name":"Yong","last_name":"Zhang","full_name":"Zhang, Yong"},{"full_name":"Gu, Yazhou","last_name":"Gu","first_name":"Yazhou"},{"last_name":"Li","full_name":"Li, Peigang","first_name":"Peigang"},{"first_name":"Zhitong","last_name":"Li","full_name":"Li, Zhitong"},{"first_name":"Zacharias","full_name":"Hatzopoulos, Zacharias","last_name":"Hatzopoulos"},{"first_name":"Pavlos G.","last_name":"Savvidis","full_name":"Savvidis, Pavlos G."},{"first_name":"Stefan","orcid":"0000-0003-4042-4951","last_name":"Schumacher","full_name":"Schumacher, Stefan","id":"27271"},{"first_name":"Tingge","last_name":"Gao","full_name":"Gao, Tingge"}],"date_created":"2025-12-04T12:25:12Z","volume":127},{"type":"journal_article","publication":"Applied Physics Letters","abstract":[{"text":"<jats:p>Lithium niobate and lithium tantalate are among the most widespread materials for nonlinear, integrated photonics. Mixed crystals with arbitrary Nb–Ta ratios provide an additional degree of freedom to not only tune materials properties, such as the birefringence but also leverage the advantages of the singular compounds, for example, by combining the thermal stability of lithium tantalate with the larger nonlinear or piezoelectric constants of lithium niobate. Periodic poling allows to achieve phase-matching independent of waveguide geometry and is, therefore, one of the commonly used methods in integrated nonlinear optics. For mixed crystals, periodic poling has been challenging so far due to the lack of homogeneous, mono-domain crystals, which severely inhibit domain growth and nucleation. In this work, we investigate surface-near (&amp;lt;1μm depth) domain inversion on x-cut lithium niobate tantalate mixed crystals via electric field poling and lithographically structured electrodes. We find that naturally occurring head-to-head or tail-to-tail domain walls in the as-grown crystal inhibit domain inversion at a larger scale. However, periodic poling is possible if the gap size between the poling electrodes is of the same order of magnitude or smaller than the average size of naturally occurring domains. This work provides the basis for the nonlinear optical application of lithium niobate tantalate mixed crystals.</jats:p>","lang":"eng"}],"status":"public","project":[{"name":"TRR 142 - B07: TRR 142 - Polaronen-Einfluss auf die optischen Eigenschaften von Lithiumniobat (B07*)","_id":"168","grant_number":"231447078"}],"_id":"57028","user_id":"61375","department":[{"_id":"15"},{"_id":"623"},{"_id":"230"},{"_id":"288"}],"language":[{"iso":"eng"}],"publication_status":"published","publication_identifier":{"issn":["0003-6951","1077-3118"]},"issue":"15","year":"2024","citation":{"apa":"Bollmers, L., Babai-Hemati, T., Koppitz, B., Eigner, C., Padberg, L., Rüsing, M., Eng, L. M., &#38; Silberhorn, C. (2024). Surface-near domain engineering in multi-domain x-cut lithium niobate tantalate mixed crystals. <i>Applied Physics Letters</i>, <i>125</i>(15). <a href=\"https://doi.org/10.1063/5.0210972\">https://doi.org/10.1063/5.0210972</a>","mla":"Bollmers, Laura, et al. “Surface-near Domain Engineering in Multi-Domain x-Cut Lithium Niobate Tantalate Mixed Crystals.” <i>Applied Physics Letters</i>, vol. 125, no. 15, AIP Publishing, 2024, doi:<a href=\"https://doi.org/10.1063/5.0210972\">10.1063/5.0210972</a>.","bibtex":"@article{Bollmers_Babai-Hemati_Koppitz_Eigner_Padberg_Rüsing_Eng_Silberhorn_2024, title={Surface-near domain engineering in multi-domain x-cut lithium niobate tantalate mixed crystals}, volume={125}, DOI={<a href=\"https://doi.org/10.1063/5.0210972\">10.1063/5.0210972</a>}, number={15}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Bollmers, Laura and Babai-Hemati, Tobias and Koppitz, Boris and Eigner, Christof and Padberg, Laura and Rüsing, Michael and Eng, Lukas M. and Silberhorn, Christine}, year={2024} }","short":"L. Bollmers, T. Babai-Hemati, B. Koppitz, C. Eigner, L. Padberg, M. Rüsing, L.M. Eng, C. Silberhorn, Applied Physics Letters 125 (2024).","ieee":"L. Bollmers <i>et al.</i>, “Surface-near domain engineering in multi-domain x-cut lithium niobate tantalate mixed crystals,” <i>Applied Physics Letters</i>, vol. 125, no. 15, 2024, doi: <a href=\"https://doi.org/10.1063/5.0210972\">10.1063/5.0210972</a>.","chicago":"Bollmers, Laura, Tobias Babai-Hemati, Boris Koppitz, Christof Eigner, Laura Padberg, Michael Rüsing, Lukas M. Eng, and Christine Silberhorn. “Surface-near Domain Engineering in Multi-Domain x-Cut Lithium Niobate Tantalate Mixed Crystals.” <i>Applied Physics Letters</i> 125, no. 15 (2024). <a href=\"https://doi.org/10.1063/5.0210972\">https://doi.org/10.1063/5.0210972</a>.","ama":"Bollmers L, Babai-Hemati T, Koppitz B, et al. Surface-near domain engineering in multi-domain x-cut lithium niobate tantalate mixed crystals. <i>Applied Physics Letters</i>. 2024;125(15). doi:<a href=\"https://doi.org/10.1063/5.0210972\">10.1063/5.0210972</a>"},"intvolume":"       125","publisher":"AIP Publishing","date_updated":"2024-11-15T09:15:08Z","author":[{"id":"61375","full_name":"Bollmers, Laura","last_name":"Bollmers","first_name":"Laura"},{"first_name":"Tobias","last_name":"Babai-Hemati","full_name":"Babai-Hemati, Tobias"},{"first_name":"Boris","full_name":"Koppitz, Boris","last_name":"Koppitz"},{"last_name":"Eigner","orcid":"https://orcid.org/0000-0002-5693-3083","id":"13244","full_name":"Eigner, Christof","first_name":"Christof"},{"first_name":"Laura","full_name":"Padberg, Laura","id":"40300","last_name":"Padberg"},{"first_name":"Michael","full_name":"Rüsing, Michael","id":"22501","orcid":"0000-0003-4682-4577","last_name":"Rüsing"},{"full_name":"Eng, Lukas M.","last_name":"Eng","first_name":"Lukas M."},{"first_name":"Christine","last_name":"Silberhorn","full_name":"Silberhorn, Christine","id":"26263"}],"date_created":"2024-11-13T08:06:59Z","volume":125,"title":"Surface-near domain engineering in multi-domain x-cut lithium niobate tantalate mixed crystals","doi":"10.1063/5.0210972"},{"title":"Comparative study of photo-induced electronic transport along ferroelectric domain walls in lithium niobate single crystals","main_file_link":[{"url":"https://doi.org/10.1063/5.0205877"}],"doi":"10.1063/5.0205877","date_updated":"2025-04-03T12:35:17Z","publisher":"AIP Publishing","date_created":"2024-07-01T21:03:23Z","author":[{"first_name":"L. L.","last_name":"Ding","full_name":"Ding, L. L."},{"full_name":"Beyreuther, E.","last_name":"Beyreuther","first_name":"E."},{"full_name":"Koppitz, B.","last_name":"Koppitz","first_name":"B."},{"last_name":"Kempf","full_name":"Kempf, K.","first_name":"K."},{"full_name":"Ren, J. H.","last_name":"Ren","first_name":"J. H."},{"full_name":"Chen, W. J.","last_name":"Chen","first_name":"W. J."},{"id":"22501","full_name":"Rüsing, Michael","last_name":"Rüsing","orcid":"0000-0003-4682-4577","first_name":"Michael"},{"full_name":"Zheng, Y.","last_name":"Zheng","first_name":"Y."},{"last_name":"Eng","full_name":"Eng, L. M.","first_name":"L. M."}],"volume":124,"year":"2024","citation":{"apa":"Ding, L. L., Beyreuther, E., Koppitz, B., Kempf, K., Ren, J. H., Chen, W. J., Rüsing, M., Zheng, Y., &#38; Eng, L. M. (2024). Comparative study of photo-induced electronic transport along ferroelectric domain walls in lithium niobate single crystals. <i>Applied Physics Letters</i>, <i>124</i>(25). <a href=\"https://doi.org/10.1063/5.0205877\">https://doi.org/10.1063/5.0205877</a>","bibtex":"@article{Ding_Beyreuther_Koppitz_Kempf_Ren_Chen_Rüsing_Zheng_Eng_2024, title={Comparative study of photo-induced electronic transport along ferroelectric domain walls in lithium niobate single crystals}, volume={124}, DOI={<a href=\"https://doi.org/10.1063/5.0205877\">10.1063/5.0205877</a>}, number={25}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Ding, L. L. and Beyreuther, E. and Koppitz, B. and Kempf, K. and Ren, J. H. and Chen, W. J. and Rüsing, Michael and Zheng, Y. and Eng, L. M.}, year={2024} }","short":"L.L. Ding, E. Beyreuther, B. Koppitz, K. Kempf, J.H. Ren, W.J. Chen, M. Rüsing, Y. Zheng, L.M. Eng, Applied Physics Letters 124 (2024).","mla":"Ding, L. L., et al. “Comparative Study of Photo-Induced Electronic Transport along Ferroelectric Domain Walls in Lithium Niobate Single Crystals.” <i>Applied Physics Letters</i>, vol. 124, no. 25, AIP Publishing, 2024, doi:<a href=\"https://doi.org/10.1063/5.0205877\">10.1063/5.0205877</a>.","ieee":"L. L. Ding <i>et al.</i>, “Comparative study of photo-induced electronic transport along ferroelectric domain walls in lithium niobate single crystals,” <i>Applied Physics Letters</i>, vol. 124, no. 25, 2024, doi: <a href=\"https://doi.org/10.1063/5.0205877\">10.1063/5.0205877</a>.","chicago":"Ding, L. L., E. Beyreuther, B. Koppitz, K. Kempf, J. H. Ren, W. J. Chen, Michael Rüsing, Y. Zheng, and L. M. Eng. “Comparative Study of Photo-Induced Electronic Transport along Ferroelectric Domain Walls in Lithium Niobate Single Crystals.” <i>Applied Physics Letters</i> 124, no. 25 (2024). <a href=\"https://doi.org/10.1063/5.0205877\">https://doi.org/10.1063/5.0205877</a>.","ama":"Ding LL, Beyreuther E, Koppitz B, et al. Comparative study of photo-induced electronic transport along ferroelectric domain walls in lithium niobate single crystals. <i>Applied Physics Letters</i>. 2024;124(25). doi:<a href=\"https://doi.org/10.1063/5.0205877\">10.1063/5.0205877</a>"},"intvolume":"       124","publication_status":"published","quality_controlled":"1","publication_identifier":{"issn":["0003-6951","1077-3118"]},"issue":"25","article_type":"original","language":[{"iso":"eng"}],"_id":"54967","user_id":"22501","department":[{"_id":"15"},{"_id":"169"},{"_id":"623"}],"abstract":[{"text":"<jats:p>Ferroelectric domain wall conductivity (DWC) is an intriguing and promising functional property that can be elegantly controlled and steered through a variety of external stimuli such as electric and mechanical fields. Optical-field control, as a noninvasive and flexible tool, has rarely been applied so far, but it significantly expands the possibility for both tuning and probing DWC. On the one hand, as known from second-harmonic or Raman micro-spectroscopy, the optical approach provides information on DW distribution and inclination, while simultaneously probing the DW vibrational modes; on the other hand, photons might be applied to directly generate charge carriers, thereby acting as a functional and spectrally tunable probe to deduce the local absorption properties and bandgaps of conductive DWs. Here, we report on investigating the photo-induced DWC (PI-DWC) of three lithium niobate crystals, containing a very different number of DWs, namely: (A) none, (B) one, and (C) many conductive DWs. All three samples are inspected for their current–voltage behavior in darkness and for different illumination wavelengths swept from 500 nm down to 310 nm. All samples show their maximum PI-DWC at 310 nm; moreover, sample (C) reaches PI-DWCs of several microampere. Interestingly, a noticeable PI-DWC is also observed for sub-bandgap illumination, hinting toward the existence and decisive role of electronic in-gap states that contribute to the electronic charge transport along DWs. Finally, complementary conductive atomic force microscopy investigations under illumination proved that the PI-DWC indeed is confined to the DW area and does not originate from photo-induced bulk conductivity.</jats:p>","lang":"eng"}],"status":"public","type":"journal_article","publication":"Applied Physics Letters"},{"keyword":["Physics and Astronomy (miscellaneous)"],"language":[{"iso":"eng"}],"abstract":[{"text":"The achievement of a flat metasurface has realized extraordinary control over light–matter interaction at the nanoscale, enabling widespread use in imaging, holography, and biophotonics. However, three-dimensional metasurfaces with the potential to provide additional light–matter manipulation flexibility attract only little interest. Here, we demonstrate a three-dimensional metasurface scheme capable of providing dual phase control through out-of-plane plasmonic resonance of L-shape antennas. Under circularly polarized excitation at a specific wavelength, the L-shape antennas with rotating orientation angle act as spatially variant three-dimensional tilted dipoles and are able to generate desire phase delay for different polarization components. Generalized Snell's law is achieved for both in-plane and out-of-plane dipole components through arranging such L-shape antennas into arrays. These three-dimensional metasurfaces suggest a route for wavefront modulation and a variety of nanophotonic applications.","lang":"eng"}],"publication":"Applied Physics Letters","title":"Three-dimensional dipole momentum analog based on L-shape metasurface","publisher":"AIP Publishing","date_created":"2023-04-06T06:01:06Z","year":"2023","quality_controlled":"1","issue":"14","article_type":"original","article_number":"141702","_id":"43421","user_id":"30525","department":[{"_id":"15"},{"_id":"230"},{"_id":"289"},{"_id":"623"}],"status":"public","type":"journal_article","doi":"10.1063/5.0142389","date_updated":"2023-04-06T06:02:58Z","author":[{"first_name":"Tianyou","full_name":"Li, Tianyou","last_name":"Li"},{"first_name":"Yanjie","full_name":"Chen, Yanjie","last_name":"Chen"},{"first_name":"Yongtian","last_name":"Wang","full_name":"Wang, Yongtian"},{"first_name":"Thomas","full_name":"Zentgraf, Thomas","id":"30525","orcid":"0000-0002-8662-1101","last_name":"Zentgraf"},{"first_name":"Lingling","last_name":"Huang","full_name":"Huang, Lingling"}],"volume":122,"citation":{"ama":"Li T, Chen Y, Wang Y, Zentgraf T, Huang L. Three-dimensional dipole momentum analog based on L-shape metasurface. <i>Applied Physics Letters</i>. 2023;122(14). doi:<a href=\"https://doi.org/10.1063/5.0142389\">10.1063/5.0142389</a>","chicago":"Li, Tianyou, Yanjie Chen, Yongtian Wang, Thomas Zentgraf, and Lingling Huang. “Three-Dimensional Dipole Momentum Analog Based on L-Shape Metasurface.” <i>Applied Physics Letters</i> 122, no. 14 (2023). <a href=\"https://doi.org/10.1063/5.0142389\">https://doi.org/10.1063/5.0142389</a>.","ieee":"T. Li, Y. Chen, Y. Wang, T. Zentgraf, and L. Huang, “Three-dimensional dipole momentum analog based on L-shape metasurface,” <i>Applied Physics Letters</i>, vol. 122, no. 14, Art. no. 141702, 2023, doi: <a href=\"https://doi.org/10.1063/5.0142389\">10.1063/5.0142389</a>.","apa":"Li, T., Chen, Y., Wang, Y., Zentgraf, T., &#38; Huang, L. (2023). Three-dimensional dipole momentum analog based on L-shape metasurface. <i>Applied Physics Letters</i>, <i>122</i>(14), Article 141702. <a href=\"https://doi.org/10.1063/5.0142389\">https://doi.org/10.1063/5.0142389</a>","mla":"Li, Tianyou, et al. “Three-Dimensional Dipole Momentum Analog Based on L-Shape Metasurface.” <i>Applied Physics Letters</i>, vol. 122, no. 14, 141702, AIP Publishing, 2023, doi:<a href=\"https://doi.org/10.1063/5.0142389\">10.1063/5.0142389</a>.","bibtex":"@article{Li_Chen_Wang_Zentgraf_Huang_2023, title={Three-dimensional dipole momentum analog based on L-shape metasurface}, volume={122}, DOI={<a href=\"https://doi.org/10.1063/5.0142389\">10.1063/5.0142389</a>}, number={14141702}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Li, Tianyou and Chen, Yanjie and Wang, Yongtian and Zentgraf, Thomas and Huang, Lingling}, year={2023} }","short":"T. Li, Y. Chen, Y. Wang, T. Zentgraf, L. Huang, Applied Physics Letters 122 (2023)."},"intvolume":"       122","publication_status":"published","publication_identifier":{"issn":["0003-6951","1077-3118"]}},{"type":"journal_article","publication":"Applied Physics Letters","status":"public","abstract":[{"lang":"eng","text":"Optical geometric phase encoded by in-plane spatial orientation of microstructures has promoted the rapid development of numerous functional meta-devices. However, pushing the concept of the geometric phase toward the acoustic community still faces challenges. In this work, we utilize two acoustic nonlocal metagratings that could support a direct conversion between an acoustic plane wave and a designated vortex mode to obtain the acoustic geometric phase, in which an orbital angular momentum conversion process plays a vital role. In addition, we realize the acoustic geometric phases of different orders by merely varying the orientation angle of the acoustic nonlocal metagratings. Intriguingly, according to our developed theory, we reveal that the reflective acoustic geometric phase, which is twice the transmissive one, can be readily realized by transferring the transmitted configuration to a reflected one. Both the theoretical study and experimental measurements verify the announced transmissive and reflective acoustic geometric phases. Moreover, the reconfigurability and continuous phase modulation that covers the 2π range shown by the acoustic geometric phases provide us with the alternatives in advanced acoustic wavefront control."}],"user_id":"30525","department":[{"_id":"15"},{"_id":"230"},{"_id":"289"},{"_id":"623"}],"_id":"31480","language":[{"iso":"eng"}],"article_number":"211702","keyword":["Physics and Astronomy (miscellaneous)"],"issue":"21","publication_status":"published","publication_identifier":{"issn":["0003-6951","1077-3118"]},"citation":{"bibtex":"@article{Liu_Zhou_Wang_Zentgraf_Li_Huang_2022, title={Experimental verification of the acoustic geometric phase}, volume={120}, DOI={<a href=\"https://doi.org/10.1063/5.0091474\">10.1063/5.0091474</a>}, number={21211702}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Liu, Bingyi and Zhou, Zhiling and Wang, Yongtian and Zentgraf, Thomas and Li, Yong and Huang, Lingling}, year={2022} }","mla":"Liu, Bingyi, et al. “Experimental Verification of the Acoustic Geometric Phase.” <i>Applied Physics Letters</i>, vol. 120, no. 21, 211702, AIP Publishing, 2022, doi:<a href=\"https://doi.org/10.1063/5.0091474\">10.1063/5.0091474</a>.","short":"B. Liu, Z. Zhou, Y. Wang, T. Zentgraf, Y. Li, L. Huang, Applied Physics Letters 120 (2022).","apa":"Liu, B., Zhou, Z., Wang, Y., Zentgraf, T., Li, Y., &#38; Huang, L. (2022). Experimental verification of the acoustic geometric phase. <i>Applied Physics Letters</i>, <i>120</i>(21), Article 211702. <a href=\"https://doi.org/10.1063/5.0091474\">https://doi.org/10.1063/5.0091474</a>","chicago":"Liu, Bingyi, Zhiling Zhou, Yongtian Wang, Thomas Zentgraf, Yong Li, and Lingling Huang. “Experimental Verification of the Acoustic Geometric Phase.” <i>Applied Physics Letters</i> 120, no. 21 (2022). <a href=\"https://doi.org/10.1063/5.0091474\">https://doi.org/10.1063/5.0091474</a>.","ieee":"B. Liu, Z. Zhou, Y. Wang, T. Zentgraf, Y. Li, and L. Huang, “Experimental verification of the acoustic geometric phase,” <i>Applied Physics Letters</i>, vol. 120, no. 21, Art. no. 211702, 2022, doi: <a href=\"https://doi.org/10.1063/5.0091474\">10.1063/5.0091474</a>.","ama":"Liu B, Zhou Z, Wang Y, Zentgraf T, Li Y, Huang L. Experimental verification of the acoustic geometric phase. <i>Applied Physics Letters</i>. 2022;120(21). doi:<a href=\"https://doi.org/10.1063/5.0091474\">10.1063/5.0091474</a>"},"intvolume":"       120","year":"2022","author":[{"full_name":"Liu, Bingyi","last_name":"Liu","first_name":"Bingyi"},{"full_name":"Zhou, Zhiling","last_name":"Zhou","first_name":"Zhiling"},{"full_name":"Wang, Yongtian","last_name":"Wang","first_name":"Yongtian"},{"full_name":"Zentgraf, Thomas","id":"30525","last_name":"Zentgraf","orcid":"0000-0002-8662-1101","first_name":"Thomas"},{"last_name":"Li","full_name":"Li, Yong","first_name":"Yong"},{"first_name":"Lingling","full_name":"Huang, Lingling","last_name":"Huang"}],"date_created":"2022-05-27T12:35:53Z","volume":120,"date_updated":"2022-05-27T12:36:43Z","publisher":"AIP Publishing","doi":"10.1063/5.0091474","title":"Experimental verification of the acoustic geometric phase"},{"status":"public","type":"journal_article","article_number":"201103","_id":"36414","user_id":"59416","intvolume":"       121","citation":{"apa":"Gao, Y., Li, Y., Ma, X., Gao, M., Dai, H., Schumacher, S., &#38; Gao, T. (2022). Tilting nondispersive bands in an empty microcavity. <i>Applied Physics Letters</i>, <i>121</i>(20), Article 201103. <a href=\"https://doi.org/10.1063/5.0093908\">https://doi.org/10.1063/5.0093908</a>","mla":"Gao, Ying, et al. “Tilting Nondispersive Bands in an Empty Microcavity.” <i>Applied Physics Letters</i>, vol. 121, no. 20, 201103, AIP Publishing, 2022, doi:<a href=\"https://doi.org/10.1063/5.0093908\">10.1063/5.0093908</a>.","short":"Y. Gao, Y. Li, X. Ma, M. Gao, H. Dai, S. Schumacher, T. Gao, Applied Physics Letters 121 (2022).","bibtex":"@article{Gao_Li_Ma_Gao_Dai_Schumacher_Gao_2022, title={Tilting nondispersive bands in an empty microcavity}, volume={121}, DOI={<a href=\"https://doi.org/10.1063/5.0093908\">10.1063/5.0093908</a>}, number={20201103}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Gao, Ying and Li, Yao and Ma, Xuekai and Gao, Meini and Dai, Haitao and Schumacher, Stefan and Gao, Tingge}, year={2022} }","chicago":"Gao, Ying, Yao Li, Xuekai Ma, Meini Gao, Haitao Dai, Stefan Schumacher, and Tingge Gao. “Tilting Nondispersive Bands in an Empty Microcavity.” <i>Applied Physics Letters</i> 121, no. 20 (2022). <a href=\"https://doi.org/10.1063/5.0093908\">https://doi.org/10.1063/5.0093908</a>.","ieee":"Y. Gao <i>et al.</i>, “Tilting nondispersive bands in an empty microcavity,” <i>Applied Physics Letters</i>, vol. 121, no. 20, Art. no. 201103, 2022, doi: <a href=\"https://doi.org/10.1063/5.0093908\">10.1063/5.0093908</a>.","ama":"Gao Y, Li Y, Ma X, et al. Tilting nondispersive bands in an empty microcavity. <i>Applied Physics Letters</i>. 2022;121(20). doi:<a href=\"https://doi.org/10.1063/5.0093908\">10.1063/5.0093908</a>"},"publication_identifier":{"issn":["0003-6951","1077-3118"]},"publication_status":"published","doi":"10.1063/5.0093908","date_updated":"2023-01-12T12:06:03Z","volume":121,"author":[{"first_name":"Ying","last_name":"Gao","full_name":"Gao, Ying"},{"last_name":"Li","full_name":"Li, Yao","first_name":"Yao"},{"last_name":"Ma","full_name":"Ma, Xuekai","first_name":"Xuekai"},{"full_name":"Gao, Meini","last_name":"Gao","first_name":"Meini"},{"full_name":"Dai, Haitao","last_name":"Dai","first_name":"Haitao"},{"first_name":"Stefan","full_name":"Schumacher, Stefan","last_name":"Schumacher"},{"first_name":"Tingge","last_name":"Gao","full_name":"Gao, Tingge"}],"abstract":[{"lang":"eng","text":"<jats:p> Recently, microcavities with anisotropic materials were shown to be able to create bands with non-zero local Berry curvature. The anisotropic refractive index of the cavity layer is believed to be critical in opening an energy gap at the tilted Dirac points. In this work, we show that the anticrossing between a cavity mode and a Bragg mode can also be realized within an empty microcavity without any birefringent materials in the cavity layer. Nondispersive bands are observed within the energy gap due to the particular refractive index distribution of the sample. The intrinsic TE-TM splitting and XY splitting of DBR mirrors induce the squeezing of the cavity modes in momentum space, so that the nondispersive bands are tilted and spin-dependent. Our results pave the way to investigate interesting physical phenomena of photonic modes close to or in the nondispersive bands without anisotropic cavity layers. </jats:p>"}],"publication":"Applied Physics Letters","keyword":["Physics and Astronomy (miscellaneous)"],"language":[{"iso":"eng"}],"year":"2022","issue":"20","title":"Tilting nondispersive bands in an empty microcavity","publisher":"AIP Publishing","date_created":"2023-01-12T12:03:49Z"},{"type":"journal_article","status":"public","_id":"47982","user_id":"22501","article_type":"original","article_number":"162901","extern":"1","publication_identifier":{"issn":["0003-6951","1077-3118"]},"publication_status":"published","intvolume":"       120","citation":{"ama":"Reitzig S, Hempel F, Ratzenberger J, et al. High-speed hyperspectral imaging of ferroelectric domain walls using broadband coherent anti-Stokes Raman scattering. <i>Applied Physics Letters</i>. 2022;120(16). doi:<a href=\"https://doi.org/10.1063/5.0086029\">10.1063/5.0086029</a>","ieee":"S. Reitzig <i>et al.</i>, “High-speed hyperspectral imaging of ferroelectric domain walls using broadband coherent anti-Stokes Raman scattering,” <i>Applied Physics Letters</i>, vol. 120, no. 16, Art. no. 162901, 2022, doi: <a href=\"https://doi.org/10.1063/5.0086029\">10.1063/5.0086029</a>.","chicago":"Reitzig, Sven, Franz Hempel, Julius Ratzenberger, Peter A. Hegarty, Zeeshan H. Amber, Robin Buschbeck, Michael Rüsing, and Lukas M. Eng. “High-Speed Hyperspectral Imaging of Ferroelectric Domain Walls Using Broadband Coherent Anti-Stokes Raman Scattering.” <i>Applied Physics Letters</i> 120, no. 16 (2022). <a href=\"https://doi.org/10.1063/5.0086029\">https://doi.org/10.1063/5.0086029</a>.","apa":"Reitzig, S., Hempel, F., Ratzenberger, J., Hegarty, P. A., Amber, Z. H., Buschbeck, R., Rüsing, M., &#38; Eng, L. M. (2022). High-speed hyperspectral imaging of ferroelectric domain walls using broadband coherent anti-Stokes Raman scattering. <i>Applied Physics Letters</i>, <i>120</i>(16), Article 162901. <a href=\"https://doi.org/10.1063/5.0086029\">https://doi.org/10.1063/5.0086029</a>","bibtex":"@article{Reitzig_Hempel_Ratzenberger_Hegarty_Amber_Buschbeck_Rüsing_Eng_2022, title={High-speed hyperspectral imaging of ferroelectric domain walls using broadband coherent anti-Stokes Raman scattering}, volume={120}, DOI={<a href=\"https://doi.org/10.1063/5.0086029\">10.1063/5.0086029</a>}, number={16162901}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Reitzig, Sven and Hempel, Franz and Ratzenberger, Julius and Hegarty, Peter A. and Amber, Zeeshan H. and Buschbeck, Robin and Rüsing, Michael and Eng, Lukas M.}, year={2022} }","short":"S. Reitzig, F. Hempel, J. Ratzenberger, P.A. Hegarty, Z.H. Amber, R. Buschbeck, M. Rüsing, L.M. Eng, Applied Physics Letters 120 (2022).","mla":"Reitzig, Sven, et al. “High-Speed Hyperspectral Imaging of Ferroelectric Domain Walls Using Broadband Coherent Anti-Stokes Raman Scattering.” <i>Applied Physics Letters</i>, vol. 120, no. 16, 162901, AIP Publishing, 2022, doi:<a href=\"https://doi.org/10.1063/5.0086029\">10.1063/5.0086029</a>."},"date_updated":"2023-10-11T08:50:42Z","volume":120,"author":[{"full_name":"Reitzig, Sven","last_name":"Reitzig","first_name":"Sven"},{"first_name":"Franz","full_name":"Hempel, Franz","last_name":"Hempel"},{"last_name":"Ratzenberger","full_name":"Ratzenberger, Julius","first_name":"Julius"},{"full_name":"Hegarty, Peter A.","last_name":"Hegarty","first_name":"Peter A."},{"full_name":"Amber, Zeeshan H.","last_name":"Amber","first_name":"Zeeshan H."},{"first_name":"Robin","last_name":"Buschbeck","full_name":"Buschbeck, Robin"},{"first_name":"Michael","full_name":"Rüsing, Michael","id":"22501","orcid":"0000-0003-4682-4577","last_name":"Rüsing"},{"first_name":"Lukas M.","full_name":"Eng, Lukas M.","last_name":"Eng"}],"doi":"10.1063/5.0086029","publication":"Applied Physics Letters","abstract":[{"text":"Spontaneous Raman spectroscopy (SR) is a versatile method for analysis and visualization of ferroelectric crystal structures, including domain walls. Nevertheless, the necessary acquisition time makes SR impractical for in situ analysis and large scale imaging. In this work, we introduce broadband coherent anti-Stokes Raman spectroscopy (B-CARS) as a high-speed alternative to conventional Raman techniques and demonstrate its benefits for ferroelectric domain wall analysis. Using the example of poled lithium niobate, we compare the spectral output of both techniques in terms of domain wall signatures and imaging capabilities. We extract the Raman-like resonant part of the coherent anti-Stokes signal via a Kramers–Kronig-based phase retrieval algorithm and compare the raw and phase-retrieved signals to SR characteristics. Finally, we propose a mechanism for the observed domain wall signal strength that resembles a Čerenkov-like behavior, in close analogy to domain wall signatures obtained by second-harmonic generation imaging. We, thus, lay here the foundations for future investigations on other poled ferroelectric crystals using B-CARS.","lang":"eng"}],"keyword":["Physics and Astronomy (miscellaneous)"],"language":[{"iso":"eng"}],"quality_controlled":"1","issue":"16","year":"2022","publisher":"AIP Publishing","date_created":"2023-10-11T08:50:06Z","title":"High-speed hyperspectral imaging of ferroelectric domain walls using broadband coherent anti-Stokes Raman scattering"},{"publisher":"AIP Publishing","date_updated":"2025-12-05T13:50:49Z","volume":121,"date_created":"2022-11-16T12:29:11Z","author":[{"full_name":"Gao, Ying","last_name":"Gao","first_name":"Ying"},{"full_name":"Li, Yao","last_name":"Li","first_name":"Yao"},{"first_name":"Xuekai","last_name":"Ma","id":"59416","full_name":"Ma, Xuekai"},{"last_name":"Gao","full_name":"Gao, Meini","first_name":"Meini"},{"last_name":"Dai","full_name":"Dai, Haitao","first_name":"Haitao"},{"first_name":"Stefan","id":"27271","full_name":"Schumacher, Stefan","last_name":"Schumacher","orcid":"0000-0003-4042-4951"},{"first_name":"Tingge","full_name":"Gao, Tingge","last_name":"Gao"}],"title":"Tilting nondispersive bands in an empty microcavity","doi":"10.1063/5.0093908","publication_identifier":{"issn":["0003-6951","1077-3118"]},"publication_status":"published","issue":"20","year":"2022","intvolume":"       121","citation":{"apa":"Gao, Y., Li, Y., Ma, X., Gao, M., Dai, H., Schumacher, S., &#38; Gao, T. (2022). Tilting nondispersive bands in an empty microcavity. <i>Applied Physics Letters</i>, <i>121</i>(20), Article 201103. <a href=\"https://doi.org/10.1063/5.0093908\">https://doi.org/10.1063/5.0093908</a>","bibtex":"@article{Gao_Li_Ma_Gao_Dai_Schumacher_Gao_2022, title={Tilting nondispersive bands in an empty microcavity}, volume={121}, DOI={<a href=\"https://doi.org/10.1063/5.0093908\">10.1063/5.0093908</a>}, number={20201103}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Gao, Ying and Li, Yao and Ma, Xuekai and Gao, Meini and Dai, Haitao and Schumacher, Stefan and Gao, Tingge}, year={2022} }","short":"Y. Gao, Y. Li, X. Ma, M. Gao, H. Dai, S. Schumacher, T. Gao, Applied Physics Letters 121 (2022).","mla":"Gao, Ying, et al. “Tilting Nondispersive Bands in an Empty Microcavity.” <i>Applied Physics Letters</i>, vol. 121, no. 20, 201103, AIP Publishing, 2022, doi:<a href=\"https://doi.org/10.1063/5.0093908\">10.1063/5.0093908</a>.","chicago":"Gao, Ying, Yao Li, Xuekai Ma, Meini Gao, Haitao Dai, Stefan Schumacher, and Tingge Gao. “Tilting Nondispersive Bands in an Empty Microcavity.” <i>Applied Physics Letters</i> 121, no. 20 (2022). <a href=\"https://doi.org/10.1063/5.0093908\">https://doi.org/10.1063/5.0093908</a>.","ieee":"Y. Gao <i>et al.</i>, “Tilting nondispersive bands in an empty microcavity,” <i>Applied Physics Letters</i>, vol. 121, no. 20, Art. no. 201103, 2022, doi: <a href=\"https://doi.org/10.1063/5.0093908\">10.1063/5.0093908</a>.","ama":"Gao Y, Li Y, Ma X, et al. Tilting nondispersive bands in an empty microcavity. <i>Applied Physics Letters</i>. 2022;121(20). doi:<a href=\"https://doi.org/10.1063/5.0093908\">10.1063/5.0093908</a>"},"_id":"34094","project":[{"name":"TRR 142: TRR 142","_id":"53"},{"_id":"54","name":"TRR 142 - A: TRR 142 - Project Area A"},{"name":"TRR 142 - A4: TRR 142 - Subproject A4","_id":"61"},{"_id":"53","name":"TRR 142: Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten zu funktionellen Strukturen"}],"department":[{"_id":"15"},{"_id":"170"},{"_id":"297"},{"_id":"705"},{"_id":"230"},{"_id":"429"},{"_id":"35"}],"user_id":"16199","keyword":["Physics and Astronomy (miscellaneous)"],"article_number":"201103","language":[{"iso":"eng"}],"publication":"Applied Physics Letters","type":"journal_article","status":"public"},{"citation":{"ama":"Widhalm A, Krehs S, Siebert D, et al. Optoelectronic sampling of ultrafast electric transients with single quantum dots. <i>Applied Physics Letters</i>. 2021;119:181109. doi:<a href=\"https://doi.org/10.1063/5.0061358\">10.1063/5.0061358</a>","chicago":"Widhalm, Alex, Sebastian Krehs, Dustin Siebert, Nand Lal Sharma, Timo Langer, Björn Jonas, Dirk Reuter, Andreas Thiede, Jens Förstner, and Artur Zrenner. “Optoelectronic Sampling of Ultrafast Electric Transients with Single Quantum Dots.” <i>Applied Physics Letters</i> 119 (2021): 181109. <a href=\"https://doi.org/10.1063/5.0061358\">https://doi.org/10.1063/5.0061358</a>.","ieee":"A. Widhalm <i>et al.</i>, “Optoelectronic sampling of ultrafast electric transients with single quantum dots,” <i>Applied Physics Letters</i>, vol. 119, p. 181109, 2021, doi: <a href=\"https://doi.org/10.1063/5.0061358\">10.1063/5.0061358</a>.","apa":"Widhalm, A., Krehs, S., Siebert, D., Sharma, N. L., Langer, T., Jonas, B., Reuter, D., Thiede, A., Förstner, J., &#38; Zrenner, A. (2021). Optoelectronic sampling of ultrafast electric transients with single quantum dots. <i>Applied Physics Letters</i>, <i>119</i>, 181109. <a href=\"https://doi.org/10.1063/5.0061358\">https://doi.org/10.1063/5.0061358</a>","bibtex":"@article{Widhalm_Krehs_Siebert_Sharma_Langer_Jonas_Reuter_Thiede_Förstner_Zrenner_2021, title={Optoelectronic sampling of ultrafast electric transients with single quantum dots}, volume={119}, DOI={<a href=\"https://doi.org/10.1063/5.0061358\">10.1063/5.0061358</a>}, journal={Applied Physics Letters}, author={Widhalm, Alex and Krehs, Sebastian and Siebert, Dustin and Sharma, Nand Lal and Langer, Timo and Jonas, Björn and Reuter, Dirk and Thiede, Andreas and Förstner, Jens and Zrenner, Artur}, year={2021}, pages={181109} }","short":"A. Widhalm, S. Krehs, D. Siebert, N.L. Sharma, T. Langer, B. Jonas, D. Reuter, A. Thiede, J. Förstner, A. Zrenner, Applied Physics Letters 119 (2021) 181109.","mla":"Widhalm, Alex, et al. “Optoelectronic Sampling of Ultrafast Electric Transients with Single Quantum Dots.” <i>Applied Physics Letters</i>, vol. 119, 2021, p. 181109, doi:<a href=\"https://doi.org/10.1063/5.0061358\">10.1063/5.0061358</a>."},"page":"181109","intvolume":"       119","publication_status":"published","has_accepted_license":"1","publication_identifier":{"issn":["0003-6951","1077-3118"]},"doi":"10.1063/5.0061358","date_updated":"2023-01-24T11:11:54Z","author":[{"full_name":"Widhalm, Alex","last_name":"Widhalm","first_name":"Alex"},{"first_name":"Sebastian","last_name":"Krehs","full_name":"Krehs, Sebastian"},{"first_name":"Dustin","last_name":"Siebert","full_name":"Siebert, Dustin"},{"first_name":"Nand Lal","last_name":"Sharma","full_name":"Sharma, Nand Lal"},{"first_name":"Timo","last_name":"Langer","full_name":"Langer, Timo"},{"first_name":"Björn","full_name":"Jonas, Björn","last_name":"Jonas"},{"full_name":"Reuter, Dirk","id":"37763","last_name":"Reuter","first_name":"Dirk"},{"first_name":"Andreas","id":"538","full_name":"Thiede, Andreas","last_name":"Thiede"},{"orcid":"0000-0001-7059-9862","last_name":"Förstner","full_name":"Förstner, Jens","id":"158","first_name":"Jens"},{"full_name":"Zrenner, Artur","id":"606","orcid":"0000-0002-5190-0944","last_name":"Zrenner","first_name":"Artur"}],"volume":119,"status":"public","type":"journal_article","file_date_updated":"2021-11-04T13:46:27Z","project":[{"name":"TRR 142 - Subproject C4","_id":"74"},{"name":"Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"},{"name":"TRR 142 - Subproject A3","_id":"60"}],"_id":"27099","user_id":"158","department":[{"_id":"15"},{"_id":"230"},{"_id":"61"},{"_id":"51"}],"year":"2021","title":"Optoelectronic sampling of ultrafast electric transients with single quantum dots","date_created":"2021-11-03T10:32:03Z","abstract":[{"text":"In our work, we have engineered low capacitance single quantum dot photodiodes as sensor devices for the optoelectronic sampling of ultrafast electric signals. By the Stark effect, a time-dependent electric signal is converted into a time-dependent shift of the transition energy. This shift is measured accurately by resonant ps laser spectroscopy with photocurrent detection. In our experiments, we sample the laser synchronous output pulse of an ultrafast CMOS circuit with high resolution. With our quantum dot sensor device, we were able to sample transients below 20 ps with a voltage resolution in the mV-range.","lang":"eng"}],"file":[{"relation":"main_file","embargo_to":"open_access","content_type":"application/pdf","file_size":1999652,"file_id":"27157","embargo":"2022-11-04","access_level":"local","file_name":"2021-11 Widhalm - APL - Optoelectronic sampling of ultrafast electric transients with single quantum dots (published version).pdf","date_updated":"2021-11-04T13:46:27Z","date_created":"2021-11-04T13:46:27Z","creator":"fossie"}],"publication":"Applied Physics Letters","ddc":["530"],"keyword":["tet_topic_qd"],"language":[{"iso":"eng"}]},{"type":"journal_article","publication":"Applied Physics Letters","abstract":[{"text":"<jats:p>GaAs quantum dots (QDs) have recently emerged as state-of-the-art semiconductor sources of polarization-entangled photon pairs, however, without site-control capability. In this work, we present a systematic study of epitaxially grown GaAs/AlxGa1-xAs site-controlled pyramidal QDs possessing unrivaled excitonic uniformity in comparison to their InGaAs counterparts or GaAs QDs fabricated by other techniques. We have experimentally and systematically investigated the binding energy of biexcitons, highlighting the importance of the uniformity of all excitonic lines, rather than concentrating solely on the uniformity of the neutral exciton as a typical figure of merit, as it is normally done in the literature. We present optical signatures of GaAs QDs within a range of ∼250 meV with a remarkable uniformity within each individual sample, the ability to excite the biexciton state resonantly, and a systematic study of the fine-structure splitting (FSS) values—features important for polarization entangled photon emission. While, in general, we observe relatively large FSS distribution and associated non-uniformities, we discuss several strategies to suppress the average FSS values to &amp;lt;15 μeV.</jats:p>","lang":"eng"}],"status":"public","_id":"63156","user_id":"94793","article_number":"073103","language":[{"iso":"eng"}],"publication_status":"published","publication_identifier":{"issn":["0003-6951","1077-3118"]},"issue":"7","year":"2021","citation":{"chicago":"Ranjbar Jahromi, Iman, Gediminas Juska, Simone Varo, Francesco Basso Basset, Francesco Salusti, Rinaldo Trotta, Agnieszka Gocalinska, Francesco Mattana, and Emanuele Pelucchi. “Optical Properties and Symmetry Optimization of Spectrally (Excitonically) Uniform Site-Controlled GaAs Pyramidal Quantum Dots.” <i>Applied Physics Letters</i> 118, no. 7 (2021). <a href=\"https://doi.org/10.1063/5.0030296\">https://doi.org/10.1063/5.0030296</a>.","ieee":"I. Ranjbar Jahromi <i>et al.</i>, “Optical properties and symmetry optimization of spectrally (excitonically) uniform site-controlled GaAs pyramidal quantum dots,” <i>Applied Physics Letters</i>, vol. 118, no. 7, Art. no. 073103, 2021, doi: <a href=\"https://doi.org/10.1063/5.0030296\">10.1063/5.0030296</a>.","ama":"Ranjbar Jahromi I, Juska G, Varo S, et al. Optical properties and symmetry optimization of spectrally (excitonically) uniform site-controlled GaAs pyramidal quantum dots. <i>Applied Physics Letters</i>. 2021;118(7). doi:<a href=\"https://doi.org/10.1063/5.0030296\">10.1063/5.0030296</a>","apa":"Ranjbar Jahromi, I., Juska, G., Varo, S., Basso Basset, F., Salusti, F., Trotta, R., Gocalinska, A., Mattana, F., &#38; Pelucchi, E. (2021). Optical properties and symmetry optimization of spectrally (excitonically) uniform site-controlled GaAs pyramidal quantum dots. <i>Applied Physics Letters</i>, <i>118</i>(7), Article 073103. <a href=\"https://doi.org/10.1063/5.0030296\">https://doi.org/10.1063/5.0030296</a>","short":"I. Ranjbar Jahromi, G. Juska, S. Varo, F. Basso Basset, F. Salusti, R. Trotta, A. Gocalinska, F. Mattana, E. Pelucchi, Applied Physics Letters 118 (2021).","bibtex":"@article{Ranjbar Jahromi_Juska_Varo_Basso Basset_Salusti_Trotta_Gocalinska_Mattana_Pelucchi_2021, title={Optical properties and symmetry optimization of spectrally (excitonically) uniform site-controlled GaAs pyramidal quantum dots}, volume={118}, DOI={<a href=\"https://doi.org/10.1063/5.0030296\">10.1063/5.0030296</a>}, number={7073103}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Ranjbar Jahromi, Iman and Juska, Gediminas and Varo, Simone and Basso Basset, Francesco and Salusti, Francesco and Trotta, Rinaldo and Gocalinska, Agnieszka and Mattana, Francesco and Pelucchi, Emanuele}, year={2021} }","mla":"Ranjbar Jahromi, Iman, et al. “Optical Properties and Symmetry Optimization of Spectrally (Excitonically) Uniform Site-Controlled GaAs Pyramidal Quantum Dots.” <i>Applied Physics Letters</i>, vol. 118, no. 7, 073103, AIP Publishing, 2021, doi:<a href=\"https://doi.org/10.1063/5.0030296\">10.1063/5.0030296</a>."},"intvolume":"       118","publisher":"AIP Publishing","date_updated":"2025-12-17T15:14:13Z","author":[{"full_name":"Ranjbar Jahromi, Iman","last_name":"Ranjbar Jahromi","first_name":"Iman"},{"first_name":"Gediminas","last_name":"Juska","full_name":"Juska, Gediminas"},{"first_name":"Simone","full_name":"Varo, Simone","last_name":"Varo"},{"last_name":"Basso Basset","full_name":"Basso Basset, Francesco","first_name":"Francesco"},{"first_name":"Francesco","last_name":"Salusti","full_name":"Salusti, Francesco"},{"last_name":"Trotta","full_name":"Trotta, Rinaldo","first_name":"Rinaldo"},{"full_name":"Gocalinska, Agnieszka","last_name":"Gocalinska","first_name":"Agnieszka"},{"first_name":"Francesco","last_name":"Mattana","full_name":"Mattana, Francesco"},{"first_name":"Emanuele","last_name":"Pelucchi","full_name":"Pelucchi, Emanuele"}],"date_created":"2025-12-16T15:20:35Z","volume":118,"title":"Optical properties and symmetry optimization of spectrally (excitonically) uniform site-controlled GaAs pyramidal quantum dots","doi":"10.1063/5.0030296"},{"title":"Two-dimensional lateral surface superlattices in GaAs heterostructures with independent control of carrier density and modulation potential","doi":"10.1063/5.0009462","date_updated":"2022-01-06T06:53:12Z","date_created":"2020-07-29T08:21:01Z","author":[{"full_name":"Wang, D. Q.","last_name":"Wang","first_name":"D. Q."},{"last_name":"Reuter","full_name":"Reuter, Dirk","id":"37763","first_name":"Dirk"},{"full_name":"Wieck, A. D.","last_name":"Wieck","first_name":"A. D."},{"last_name":"Hamilton","full_name":"Hamilton, A. R.","first_name":"A. R."},{"first_name":"O.","full_name":"Klochan, O.","last_name":"Klochan"}],"year":"2020","citation":{"apa":"Wang, D. Q., Reuter, D., Wieck, A. D., Hamilton, A. R., &#38; Klochan, O. (2020). Two-dimensional lateral surface superlattices in GaAs heterostructures with independent control of carrier density and modulation potential. <i>Applied Physics Letters</i>. <a href=\"https://doi.org/10.1063/5.0009462\">https://doi.org/10.1063/5.0009462</a>","short":"D.Q. Wang, D. Reuter, A.D. Wieck, A.R. Hamilton, O. Klochan, Applied Physics Letters (2020).","bibtex":"@article{Wang_Reuter_Wieck_Hamilton_Klochan_2020, title={Two-dimensional lateral surface superlattices in GaAs heterostructures with independent control of carrier density and modulation potential}, DOI={<a href=\"https://doi.org/10.1063/5.0009462\">10.1063/5.0009462</a>}, number={032102}, journal={Applied Physics Letters}, author={Wang, D. Q. and Reuter, Dirk and Wieck, A. D. and Hamilton, A. R. and Klochan, O.}, year={2020} }","mla":"Wang, D. Q., et al. “Two-Dimensional Lateral Surface Superlattices in GaAs Heterostructures with Independent Control of Carrier Density and Modulation Potential.” <i>Applied Physics Letters</i>, 032102, 2020, doi:<a href=\"https://doi.org/10.1063/5.0009462\">10.1063/5.0009462</a>.","ama":"Wang DQ, Reuter D, Wieck AD, Hamilton AR, Klochan O. Two-dimensional lateral surface superlattices in GaAs heterostructures with independent control of carrier density and modulation potential. <i>Applied Physics Letters</i>. 2020. doi:<a href=\"https://doi.org/10.1063/5.0009462\">10.1063/5.0009462</a>","chicago":"Wang, D. Q., Dirk Reuter, A. D. Wieck, A. R. Hamilton, and O. Klochan. “Two-Dimensional Lateral Surface Superlattices in GaAs Heterostructures with Independent Control of Carrier Density and Modulation Potential.” <i>Applied Physics Letters</i>, 2020. <a href=\"https://doi.org/10.1063/5.0009462\">https://doi.org/10.1063/5.0009462</a>.","ieee":"D. Q. Wang, D. Reuter, A. D. Wieck, A. R. Hamilton, and O. Klochan, “Two-dimensional lateral surface superlattices in GaAs heterostructures with independent control of carrier density and modulation potential,” <i>Applied Physics Letters</i>, 2020."},"publication_status":"published","publication_identifier":{"issn":["0003-6951","1077-3118"]},"article_number":"032102","language":[{"iso":"eng"}],"_id":"17433","user_id":"42514","department":[{"_id":"15"},{"_id":"230"}],"status":"public","type":"journal_article","publication":"Applied Physics Letters"},{"type":"journal_article","publication":"Applied Physics Letters","status":"public","user_id":"42514","department":[{"_id":"15"},{"_id":"230"}],"_id":"17995","language":[{"iso":"eng"}],"article_number":"063102","publication_status":"published","publication_identifier":{"issn":["0003-6951","1077-3118"]},"citation":{"chicago":"Riha, Christian, Sven S. Buchholz, Olivio Chiatti, Andreas D. Wieck, Dirk Reuter, and Saskia F. Fischer. “Excess Noise in      Al x   Ga  1 − XAs/GaAs Based Quantum Rings.” <i>Applied Physics Letters</i>, 2020. <a href=\"https://doi.org/10.1063/5.0002247\">https://doi.org/10.1063/5.0002247</a>.","ieee":"C. Riha, S. S. Buchholz, O. Chiatti, A. D. Wieck, D. Reuter, and S. F. Fischer, “Excess noise in      Al x   Ga  1 − xAs/GaAs based quantum rings,” <i>Applied Physics Letters</i>, 2020.","ama":"Riha C, Buchholz SS, Chiatti O, Wieck AD, Reuter D, Fischer SF. Excess noise in      Al x   Ga  1 − xAs/GaAs based quantum rings. <i>Applied Physics Letters</i>. 2020. doi:<a href=\"https://doi.org/10.1063/5.0002247\">10.1063/5.0002247</a>","apa":"Riha, C., Buchholz, S. S., Chiatti, O., Wieck, A. D., Reuter, D., &#38; Fischer, S. F. (2020). Excess noise in      Al x   Ga  1 − xAs/GaAs based quantum rings. <i>Applied Physics Letters</i>. <a href=\"https://doi.org/10.1063/5.0002247\">https://doi.org/10.1063/5.0002247</a>","bibtex":"@article{Riha_Buchholz_Chiatti_Wieck_Reuter_Fischer_2020, title={Excess noise in      Al x   Ga  1 − xAs/GaAs based quantum rings}, DOI={<a href=\"https://doi.org/10.1063/5.0002247\">10.1063/5.0002247</a>}, number={063102}, journal={Applied Physics Letters}, author={Riha, Christian and Buchholz, Sven S. and Chiatti, Olivio and Wieck, Andreas D. and Reuter, Dirk and Fischer, Saskia F.}, year={2020} }","mla":"Riha, Christian, et al. “Excess Noise in      Al x   Ga  1 − XAs/GaAs Based Quantum Rings.” <i>Applied Physics Letters</i>, 063102, 2020, doi:<a href=\"https://doi.org/10.1063/5.0002247\">10.1063/5.0002247</a>.","short":"C. Riha, S.S. Buchholz, O. Chiatti, A.D. Wieck, D. Reuter, S.F. Fischer, Applied Physics Letters (2020)."},"year":"2020","author":[{"first_name":"Christian","full_name":"Riha, Christian","last_name":"Riha"},{"last_name":"Buchholz","full_name":"Buchholz, Sven S.","first_name":"Sven S."},{"first_name":"Olivio","last_name":"Chiatti","full_name":"Chiatti, Olivio"},{"first_name":"Andreas D.","full_name":"Wieck, Andreas D.","last_name":"Wieck"},{"full_name":"Reuter, Dirk","id":"37763","last_name":"Reuter","first_name":"Dirk"},{"full_name":"Fischer, Saskia F.","last_name":"Fischer","first_name":"Saskia F."}],"date_created":"2020-08-17T06:48:46Z","date_updated":"2022-01-06T06:53:24Z","doi":"10.1063/5.0002247","title":"Excess noise in      Al x   Ga  1 − xAs/GaAs based quantum rings"},{"title":"Electrically controlled rapid adiabatic passage in a single quantum dot","date_created":"2020-06-25T12:31:42Z","year":"2020","language":[{"iso":"eng"}],"keyword":["tet_topic_qd"],"ddc":["530"],"file":[{"file_size":1359326,"file_name":"2020-06 Widhalm - APL - Electrically controlled RAP in single QD (official).pdf","embargo":"2021-06-25","creator":"fossie","content_type":"application/pdf","file_id":"17325","access_level":"request","date_updated":"2022-01-06T06:53:07Z","date_created":"2020-06-25T12:45:04Z","relation":"main_file","embargo_to":"open_access"}],"publication":"Applied Physics Letters","doi":"10.1063/5.0012257","volume":116,"author":[{"last_name":"Mukherjee","full_name":"Mukherjee, Amlan","first_name":"Amlan"},{"first_name":"Alex","last_name":"Widhalm","full_name":"Widhalm, Alex"},{"full_name":"Siebert, Dustin","last_name":"Siebert","first_name":"Dustin"},{"last_name":"Krehs","full_name":"Krehs, Sebastian","first_name":"Sebastian"},{"full_name":"Sharma, Nandlal","last_name":"Sharma","first_name":"Nandlal"},{"first_name":"Andreas","last_name":"Thiede","full_name":"Thiede, Andreas","id":"538"},{"last_name":"Reuter","full_name":"Reuter, Dirk","id":"37763","first_name":"Dirk"},{"first_name":"Jens","last_name":"Förstner","orcid":"0000-0001-7059-9862","id":"158","full_name":"Förstner, Jens"},{"full_name":"Zrenner, Artur","id":"606","last_name":"Zrenner","orcid":"0000-0002-5190-0944","first_name":"Artur"}],"date_updated":"2023-01-24T11:12:09Z","page":"251103","intvolume":"       116","citation":{"apa":"Mukherjee, A., Widhalm, A., Siebert, D., Krehs, S., Sharma, N., Thiede, A., Reuter, D., Förstner, J., &#38; Zrenner, A. (2020). Electrically controlled rapid adiabatic passage in a single quantum dot. <i>Applied Physics Letters</i>, <i>116</i>, 251103. <a href=\"https://doi.org/10.1063/5.0012257\">https://doi.org/10.1063/5.0012257</a>","short":"A. Mukherjee, A. Widhalm, D. Siebert, S. Krehs, N. Sharma, A. Thiede, D. Reuter, J. Förstner, A. Zrenner, Applied Physics Letters 116 (2020) 251103.","mla":"Mukherjee, Amlan, et al. “Electrically Controlled Rapid Adiabatic Passage in a Single Quantum Dot.” <i>Applied Physics Letters</i>, vol. 116, 2020, p. 251103, doi:<a href=\"https://doi.org/10.1063/5.0012257\">10.1063/5.0012257</a>.","bibtex":"@article{Mukherjee_Widhalm_Siebert_Krehs_Sharma_Thiede_Reuter_Förstner_Zrenner_2020, title={Electrically controlled rapid adiabatic passage in a single quantum dot}, volume={116}, DOI={<a href=\"https://doi.org/10.1063/5.0012257\">10.1063/5.0012257</a>}, journal={Applied Physics Letters}, author={Mukherjee, Amlan and Widhalm, Alex and Siebert, Dustin and Krehs, Sebastian and Sharma, Nandlal and Thiede, Andreas and Reuter, Dirk and Förstner, Jens and Zrenner, Artur}, year={2020}, pages={251103} }","ama":"Mukherjee A, Widhalm A, Siebert D, et al. Electrically controlled rapid adiabatic passage in a single quantum dot. <i>Applied Physics Letters</i>. 2020;116:251103. doi:<a href=\"https://doi.org/10.1063/5.0012257\">10.1063/5.0012257</a>","chicago":"Mukherjee, Amlan, Alex Widhalm, Dustin Siebert, Sebastian Krehs, Nandlal Sharma, Andreas Thiede, Dirk Reuter, Jens Förstner, and Artur Zrenner. “Electrically Controlled Rapid Adiabatic Passage in a Single Quantum Dot.” <i>Applied Physics Letters</i> 116 (2020): 251103. <a href=\"https://doi.org/10.1063/5.0012257\">https://doi.org/10.1063/5.0012257</a>.","ieee":"A. Mukherjee <i>et al.</i>, “Electrically controlled rapid adiabatic passage in a single quantum dot,” <i>Applied Physics Letters</i>, vol. 116, p. 251103, 2020, doi: <a href=\"https://doi.org/10.1063/5.0012257\">10.1063/5.0012257</a>."},"publication_identifier":{"issn":["0003-6951","1077-3118"]},"has_accepted_license":"1","publication_status":"published","file_date_updated":"2022-01-06T06:53:07Z","department":[{"_id":"61"},{"_id":"230"},{"_id":"429"},{"_id":"51"}],"user_id":"158","_id":"17322","project":[{"name":"TRR 142 - Project Area C","_id":"56"},{"name":"TRR 142 - Subproject C4","_id":"74"},{"_id":"53","name":"TRR 142"},{"name":"Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"}],"status":"public","type":"journal_article"},{"title":"Two-photon phase-sensing with single-photon detection","doi":"10.1063/5.0009527","publisher":"AIP Publishing","date_updated":"2023-01-26T10:28:45Z","volume":117,"author":[{"full_name":"Vergyris, Panagiotis","last_name":"Vergyris","first_name":"Panagiotis"},{"first_name":"Charles","full_name":"Babin, Charles","last_name":"Babin"},{"full_name":"Nold, Raphael","last_name":"Nold","first_name":"Raphael"},{"first_name":"Elie","full_name":"Gouzien, Elie","last_name":"Gouzien"},{"first_name":"Harald","last_name":"Herrmann","full_name":"Herrmann, Harald","id":"216"},{"first_name":"Christine","full_name":"Silberhorn, Christine","id":"26263","last_name":"Silberhorn"},{"full_name":"Alibart, Olivier","last_name":"Alibart","first_name":"Olivier"},{"first_name":"Sébastien","last_name":"Tanzilli","full_name":"Tanzilli, Sébastien"},{"full_name":"Kaiser, Florian","last_name":"Kaiser","first_name":"Florian"}],"date_created":"2023-01-26T10:17:33Z","year":"2020","intvolume":"       117","citation":{"bibtex":"@article{Vergyris_Babin_Nold_Gouzien_Herrmann_Silberhorn_Alibart_Tanzilli_Kaiser_2020, title={Two-photon phase-sensing with single-photon detection}, volume={117}, DOI={<a href=\"https://doi.org/10.1063/5.0009527\">10.1063/5.0009527</a>}, number={2024001}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Vergyris, Panagiotis and Babin, Charles and Nold, Raphael and Gouzien, Elie and Herrmann, Harald and Silberhorn, Christine and Alibart, Olivier and Tanzilli, Sébastien and Kaiser, Florian}, year={2020} }","short":"P. Vergyris, C. Babin, R. Nold, E. Gouzien, H. Herrmann, C. Silberhorn, O. Alibart, S. Tanzilli, F. Kaiser, Applied Physics Letters 117 (2020).","mla":"Vergyris, Panagiotis, et al. “Two-Photon Phase-Sensing with Single-Photon Detection.” <i>Applied Physics Letters</i>, vol. 117, no. 2, 024001, AIP Publishing, 2020, doi:<a href=\"https://doi.org/10.1063/5.0009527\">10.1063/5.0009527</a>.","apa":"Vergyris, P., Babin, C., Nold, R., Gouzien, E., Herrmann, H., Silberhorn, C., Alibart, O., Tanzilli, S., &#38; Kaiser, F. (2020). Two-photon phase-sensing with single-photon detection. <i>Applied Physics Letters</i>, <i>117</i>(2), Article 024001. <a href=\"https://doi.org/10.1063/5.0009527\">https://doi.org/10.1063/5.0009527</a>","ama":"Vergyris P, Babin C, Nold R, et al. Two-photon phase-sensing with single-photon detection. <i>Applied Physics Letters</i>. 2020;117(2). doi:<a href=\"https://doi.org/10.1063/5.0009527\">10.1063/5.0009527</a>","ieee":"P. Vergyris <i>et al.</i>, “Two-photon phase-sensing with single-photon detection,” <i>Applied Physics Letters</i>, vol. 117, no. 2, Art. no. 024001, 2020, doi: <a href=\"https://doi.org/10.1063/5.0009527\">10.1063/5.0009527</a>.","chicago":"Vergyris, Panagiotis, Charles Babin, Raphael Nold, Elie Gouzien, Harald Herrmann, Christine Silberhorn, Olivier Alibart, Sébastien Tanzilli, and Florian Kaiser. “Two-Photon Phase-Sensing with Single-Photon Detection.” <i>Applied Physics Letters</i> 117, no. 2 (2020). <a href=\"https://doi.org/10.1063/5.0009527\">https://doi.org/10.1063/5.0009527</a>."},"publication_identifier":{"issn":["0003-6951","1077-3118"]},"publication_status":"published","issue":"2","keyword":["Physics and Astronomy (miscellaneous)"],"article_number":"024001","language":[{"iso":"eng"}],"_id":"40271","user_id":"216","status":"public","publication":"Applied Physics Letters","type":"journal_article"},{"language":[{"iso":"eng"}],"user_id":"83846","_id":"54086","status":"public","abstract":[{"lang":"eng","text":"<jats:p>Planar nanostructures allow near-ideal extraction of emission from a quantum emitter embedded within, thereby realizing deterministic single-photon sources. Such a source can be transformed into M single-photon sources by implementing active temporal-to-spatial mode demultiplexing. We report on the realization of such a demultiplexed source based on a quantum dot embedded in a nanophotonic waveguide. Efficient outcoupling (&amp;gt;60%) from the waveguide into a single mode optical fiber is obtained with high-efficiency grating couplers. As a proof-of-concept, active demultiplexing into M = 4 spatial channels is demonstrated by the use of electro-optic modulators with an end-to-end efficiency of &amp;gt;81% into single-mode fibers. Overall, we demonstrate four-photon coincidence rates of &amp;gt;1 Hz even under nonresonant excitation of the quantum dot. The main limitation of the current source is the residual population of other exciton transitions, which corresponds to a finite preparation efficiency of the desired transition. We quantitatively extract a preparation efficiency of 15% using the second-order correlation function measurements. The experiment highlights the applicability of planar nanostructures as efficient multiphoton sources through temporal-to-spatial demultiplexing and lays out a clear path way of how to scale up toward demonstrating quantum advantages with the quantum dot sources.</jats:p>"}],"publication":"Applied Physics Letters","type":"journal_article","doi":"10.1063/1.5096979","title":"Efficient demultiplexed single-photon source with a quantum dot coupled to a nanophotonic waveguide","volume":115,"author":[{"last_name":"Hummel","full_name":"Hummel, Thomas","first_name":"Thomas"},{"first_name":"Claudéric","full_name":"Ouellet-Plamondon, Claudéric","last_name":"Ouellet-Plamondon"},{"last_name":"Ugur","full_name":"Ugur, Ela","first_name":"Ela"},{"first_name":"Irina","last_name":"Kulkova","full_name":"Kulkova, Irina"},{"last_name":"Lund-Hansen","full_name":"Lund-Hansen, Toke","first_name":"Toke"},{"full_name":"Broome, Matthew A.","last_name":"Broome","first_name":"Matthew A."},{"full_name":"Uppu, Ravitej","last_name":"Uppu","first_name":"Ravitej"},{"full_name":"Lodahl, Peter","last_name":"Lodahl","first_name":"Peter"}],"date_created":"2024-05-08T11:54:35Z","date_updated":"2024-05-08T11:57:12Z","publisher":"AIP Publishing","intvolume":"       115","citation":{"apa":"Hummel, T., Ouellet-Plamondon, C., Ugur, E., Kulkova, I., Lund-Hansen, T., Broome, M. A., Uppu, R., &#38; Lodahl, P. (2019). Efficient demultiplexed single-photon source with a quantum dot coupled to a nanophotonic waveguide. <i>Applied Physics Letters</i>, <i>115</i>(2). <a href=\"https://doi.org/10.1063/1.5096979\">https://doi.org/10.1063/1.5096979</a>","short":"T. Hummel, C. Ouellet-Plamondon, E. Ugur, I. Kulkova, T. Lund-Hansen, M.A. Broome, R. Uppu, P. Lodahl, Applied Physics Letters 115 (2019).","mla":"Hummel, Thomas, et al. “Efficient Demultiplexed Single-Photon Source with a Quantum Dot Coupled to a Nanophotonic Waveguide.” <i>Applied Physics Letters</i>, vol. 115, no. 2, AIP Publishing, 2019, doi:<a href=\"https://doi.org/10.1063/1.5096979\">10.1063/1.5096979</a>.","bibtex":"@article{Hummel_Ouellet-Plamondon_Ugur_Kulkova_Lund-Hansen_Broome_Uppu_Lodahl_2019, title={Efficient demultiplexed single-photon source with a quantum dot coupled to a nanophotonic waveguide}, volume={115}, DOI={<a href=\"https://doi.org/10.1063/1.5096979\">10.1063/1.5096979</a>}, number={2}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Hummel, Thomas and Ouellet-Plamondon, Claudéric and Ugur, Ela and Kulkova, Irina and Lund-Hansen, Toke and Broome, Matthew A. and Uppu, Ravitej and Lodahl, Peter}, year={2019} }","ama":"Hummel T, Ouellet-Plamondon C, Ugur E, et al. Efficient demultiplexed single-photon source with a quantum dot coupled to a nanophotonic waveguide. <i>Applied Physics Letters</i>. 2019;115(2). doi:<a href=\"https://doi.org/10.1063/1.5096979\">10.1063/1.5096979</a>","chicago":"Hummel, Thomas, Claudéric Ouellet-Plamondon, Ela Ugur, Irina Kulkova, Toke Lund-Hansen, Matthew A. Broome, Ravitej Uppu, and Peter Lodahl. “Efficient Demultiplexed Single-Photon Source with a Quantum Dot Coupled to a Nanophotonic Waveguide.” <i>Applied Physics Letters</i> 115, no. 2 (2019). <a href=\"https://doi.org/10.1063/1.5096979\">https://doi.org/10.1063/1.5096979</a>.","ieee":"T. Hummel <i>et al.</i>, “Efficient demultiplexed single-photon source with a quantum dot coupled to a nanophotonic waveguide,” <i>Applied Physics Letters</i>, vol. 115, no. 2, 2019, doi: <a href=\"https://doi.org/10.1063/1.5096979\">10.1063/1.5096979</a>."},"year":"2019","issue":"2","publication_identifier":{"issn":["0003-6951","1077-3118"]},"publication_status":"published"},{"article_number":"031110","language":[{"iso":"eng"}],"_id":"21029","project":[{"_id":"71","name":"TRR 142 - Subproject C1"}],"department":[{"_id":"15"},{"_id":"288"}],"user_id":"26263","status":"public","publication":"Applied Physics Letters","type":"journal_article","title":"Streak camera imaging of single photons at telecom wavelength","doi":"10.1063/1.5004110","date_updated":"2023-01-27T08:52:39Z","volume":112,"author":[{"first_name":"Markus","full_name":"Allgaier, Markus","last_name":"Allgaier"},{"full_name":"Ansari, Vahid","last_name":"Ansari","first_name":"Vahid"},{"orcid":"https://orcid.org/0000-0002-5693-3083","last_name":"Eigner","id":"13244","full_name":"Eigner, Christof","first_name":"Christof"},{"last_name":"Quiring","full_name":"Quiring, Viktor","first_name":"Viktor"},{"last_name":"Ricken","full_name":"Ricken, Raimund","first_name":"Raimund"},{"full_name":"Donohue, John Matthew","last_name":"Donohue","first_name":"John Matthew"},{"first_name":"Thomas","full_name":"Czerniuk, Thomas","last_name":"Czerniuk"},{"last_name":"Aßmann","full_name":"Aßmann, Marc","first_name":"Marc"},{"first_name":"Manfred","last_name":"Bayer","full_name":"Bayer, Manfred"},{"first_name":"Benjamin","last_name":"Brecht","orcid":"0000-0003-4140-0556 ","full_name":"Brecht, Benjamin","id":"27150"},{"first_name":"Christine","last_name":"Silberhorn","id":"26263","full_name":"Silberhorn, Christine"}],"date_created":"2021-01-20T08:41:05Z","year":"2018","intvolume":"       112","citation":{"mla":"Allgaier, Markus, et al. “Streak Camera Imaging of Single Photons at Telecom Wavelength.” <i>Applied Physics Letters</i>, vol. 112, 031110, 2018, doi:<a href=\"https://doi.org/10.1063/1.5004110\">10.1063/1.5004110</a>.","bibtex":"@article{Allgaier_Ansari_Eigner_Quiring_Ricken_Donohue_Czerniuk_Aßmann_Bayer_Brecht_et al._2018, title={Streak camera imaging of single photons at telecom wavelength}, volume={112}, DOI={<a href=\"https://doi.org/10.1063/1.5004110\">10.1063/1.5004110</a>}, number={031110}, journal={Applied Physics Letters}, author={Allgaier, Markus and Ansari, Vahid and Eigner, Christof and Quiring, Viktor and Ricken, Raimund and Donohue, John Matthew and Czerniuk, Thomas and Aßmann, Marc and Bayer, Manfred and Brecht, Benjamin and et al.}, year={2018} }","short":"M. Allgaier, V. Ansari, C. Eigner, V. Quiring, R. Ricken, J.M. Donohue, T. Czerniuk, M. Aßmann, M. Bayer, B. Brecht, C. Silberhorn, Applied Physics Letters 112 (2018).","apa":"Allgaier, M., Ansari, V., Eigner, C., Quiring, V., Ricken, R., Donohue, J. M., Czerniuk, T., Aßmann, M., Bayer, M., Brecht, B., &#38; Silberhorn, C. (2018). Streak camera imaging of single photons at telecom wavelength. <i>Applied Physics Letters</i>, <i>112</i>, Article 031110. <a href=\"https://doi.org/10.1063/1.5004110\">https://doi.org/10.1063/1.5004110</a>","chicago":"Allgaier, Markus, Vahid Ansari, Christof Eigner, Viktor Quiring, Raimund Ricken, John Matthew Donohue, Thomas Czerniuk, et al. “Streak Camera Imaging of Single Photons at Telecom Wavelength.” <i>Applied Physics Letters</i> 112 (2018). <a href=\"https://doi.org/10.1063/1.5004110\">https://doi.org/10.1063/1.5004110</a>.","ieee":"M. Allgaier <i>et al.</i>, “Streak camera imaging of single photons at telecom wavelength,” <i>Applied Physics Letters</i>, vol. 112, Art. no. 031110, 2018, doi: <a href=\"https://doi.org/10.1063/1.5004110\">10.1063/1.5004110</a>.","ama":"Allgaier M, Ansari V, Eigner C, et al. Streak camera imaging of single photons at telecom wavelength. <i>Applied Physics Letters</i>. 2018;112. doi:<a href=\"https://doi.org/10.1063/1.5004110\">10.1063/1.5004110</a>"},"publication_identifier":{"issn":["0003-6951","1077-3118"]},"publication_status":"published"},{"status":"public","type":"journal_article","publication":"Applied Physics Letters","language":[{"iso":"eng"}],"_id":"23630","user_id":"84268","department":[{"_id":"633"}],"year":"2017","citation":{"ieee":"N. Liu, H.-G. Steinrück, A. Osvet, Y. Yang, and P. Schmuki, “Noble metal free photocatalytic H2 generation on black TiO2: On the influence of crystal facets vs. crystal damage,” <i>Applied Physics Letters</i>, vol. 110, p. 072102, 2017, doi: <a href=\"https://doi.org/10.1063/1.4976010\">10.1063/1.4976010</a>.","chicago":"Liu, Ning, Hans-Georg Steinrück, Andres Osvet, Yuyun Yang, and Patrik Schmuki. “Noble Metal Free Photocatalytic H2 Generation on Black TiO2: On the Influence of Crystal Facets vs. Crystal Damage.” <i>Applied Physics Letters</i> 110 (2017): 072102. <a href=\"https://doi.org/10.1063/1.4976010\">https://doi.org/10.1063/1.4976010</a>.","ama":"Liu N, Steinrück H-G, Osvet A, Yang Y, Schmuki P. Noble metal free photocatalytic H2 generation on black TiO2: On the influence of crystal facets vs. crystal damage. <i>Applied Physics Letters</i>. 2017;110:072102. doi:<a href=\"https://doi.org/10.1063/1.4976010\">10.1063/1.4976010</a>","bibtex":"@article{Liu_Steinrück_Osvet_Yang_Schmuki_2017, title={Noble metal free photocatalytic H2 generation on black TiO2: On the influence of crystal facets vs. crystal damage}, volume={110}, DOI={<a href=\"https://doi.org/10.1063/1.4976010\">10.1063/1.4976010</a>}, journal={Applied Physics Letters}, author={Liu, Ning and Steinrück, Hans-Georg and Osvet, Andres and Yang, Yuyun and Schmuki, Patrik}, year={2017}, pages={072102} }","short":"N. Liu, H.-G. Steinrück, A. Osvet, Y. Yang, P. Schmuki, Applied Physics Letters 110 (2017) 072102.","mla":"Liu, Ning, et al. “Noble Metal Free Photocatalytic H2 Generation on Black TiO2: On the Influence of Crystal Facets vs. Crystal Damage.” <i>Applied Physics Letters</i>, vol. 110, 2017, p. 072102, doi:<a href=\"https://doi.org/10.1063/1.4976010\">10.1063/1.4976010</a>.","apa":"Liu, N., Steinrück, H.-G., Osvet, A., Yang, Y., &#38; Schmuki, P. (2017). Noble metal free photocatalytic H2 generation on black TiO2: On the influence of crystal facets vs. crystal damage. <i>Applied Physics Letters</i>, <i>110</i>, 072102. <a href=\"https://doi.org/10.1063/1.4976010\">https://doi.org/10.1063/1.4976010</a>"},"page":"072102","intvolume":"       110","publication_status":"published","publication_identifier":{"issn":["0003-6951","1077-3118"]},"title":"Noble metal free photocatalytic H2 generation on black TiO2: On the influence of crystal facets vs. crystal damage","doi":"10.1063/1.4976010","date_updated":"2022-01-06T06:55:57Z","author":[{"full_name":"Liu, Ning","last_name":"Liu","first_name":"Ning"},{"id":"84268","full_name":"Steinrück, Hans-Georg","last_name":"Steinrück","orcid":"0000-0001-6373-0877","first_name":"Hans-Georg"},{"full_name":"Osvet, Andres","last_name":"Osvet","first_name":"Andres"},{"first_name":"Yuyun","last_name":"Yang","full_name":"Yang, Yuyun"},{"first_name":"Patrik","full_name":"Schmuki, Patrik","last_name":"Schmuki"}],"date_created":"2021-09-01T09:47:45Z","volume":110},{"_id":"22568","department":[{"_id":"302"}],"user_id":"54556","article_number":"081603","language":[{"iso":"eng"}],"publication":"Applied Physics Letters","type":"journal_article","status":"public","date_updated":"2023-01-24T08:13:37Z","author":[{"last_name":"Layes","full_name":"Layes, V.","first_name":"V."},{"first_name":"S.","full_name":"Monje, S.","last_name":"Monje"},{"first_name":"C.","last_name":"Corbella","full_name":"Corbella, C."},{"full_name":"Trieschmann, J.","last_name":"Trieschmann","first_name":"J."},{"first_name":"Maria Teresa","last_name":"de los Arcos de Pedro","id":"54556","full_name":"de los Arcos de Pedro, Maria Teresa"},{"first_name":"A.","last_name":"von Keudell","full_name":"von Keudell, A."}],"date_created":"2021-07-07T09:08:37Z","title":"Species transport on the target during high power impulse magnetron sputtering","doi":"10.1063/1.4976999","publication_identifier":{"issn":["0003-6951","1077-3118"]},"publication_status":"published","year":"2017","citation":{"mla":"Layes, V., et al. “Species Transport on the Target during High Power Impulse Magnetron Sputtering.” <i>Applied Physics Letters</i>, 081603, 2017, doi:<a href=\"https://doi.org/10.1063/1.4976999\">10.1063/1.4976999</a>.","short":"V. Layes, S. Monje, C. Corbella, J. Trieschmann, M.T. de los Arcos de Pedro, A. von Keudell, Applied Physics Letters (2017).","bibtex":"@article{Layes_Monje_Corbella_Trieschmann_de los Arcos de Pedro_von Keudell_2017, title={Species transport on the target during high power impulse magnetron sputtering}, DOI={<a href=\"https://doi.org/10.1063/1.4976999\">10.1063/1.4976999</a>}, number={081603}, journal={Applied Physics Letters}, author={Layes, V. and Monje, S. and Corbella, C. and Trieschmann, J. and de los Arcos de Pedro, Maria Teresa and von Keudell, A.}, year={2017} }","apa":"Layes, V., Monje, S., Corbella, C., Trieschmann, J., de los Arcos de Pedro, M. T., &#38; von Keudell, A. (2017). Species transport on the target during high power impulse magnetron sputtering. <i>Applied Physics Letters</i>, Article 081603. <a href=\"https://doi.org/10.1063/1.4976999\">https://doi.org/10.1063/1.4976999</a>","ieee":"V. Layes, S. Monje, C. Corbella, J. Trieschmann, M. T. de los Arcos de Pedro, and A. von Keudell, “Species transport on the target during high power impulse magnetron sputtering,” <i>Applied Physics Letters</i>, Art. no. 081603, 2017, doi: <a href=\"https://doi.org/10.1063/1.4976999\">10.1063/1.4976999</a>.","chicago":"Layes, V., S. Monje, C. Corbella, J. Trieschmann, Maria Teresa de los Arcos de Pedro, and A. von Keudell. “Species Transport on the Target during High Power Impulse Magnetron Sputtering.” <i>Applied Physics Letters</i>, 2017. <a href=\"https://doi.org/10.1063/1.4976999\">https://doi.org/10.1063/1.4976999</a>.","ama":"Layes V, Monje S, Corbella C, Trieschmann J, de los Arcos de Pedro MT, von Keudell A. Species transport on the target during high power impulse magnetron sputtering. <i>Applied Physics Letters</i>. Published online 2017. doi:<a href=\"https://doi.org/10.1063/1.4976999\">10.1063/1.4976999</a>"}},{"language":[{"iso":"eng"}],"article_number":"061108","department":[{"_id":"15"},{"_id":"170"},{"_id":"297"},{"_id":"35"},{"_id":"230"},{"_id":"27"}],"user_id":"16199","_id":"13361","project":[{"name":"Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"}],"status":"public","publication":"Applied Physics Letters","type":"journal_article","doi":"10.1063/1.4975681","title":"Controlling the optical spin Hall effect with light","date_created":"2019-09-19T14:22:46Z","author":[{"first_name":"O.","last_name":"Lafont","full_name":"Lafont, O."},{"first_name":"S. M. H.","last_name":"Luk","full_name":"Luk, S. M. H."},{"first_name":"P.","last_name":"Lewandowski","full_name":"Lewandowski, P."},{"first_name":"N. H.","last_name":"Kwong","full_name":"Kwong, N. H."},{"full_name":"Leung, P. T.","last_name":"Leung","first_name":"P. T."},{"first_name":"E.","last_name":"Galopin","full_name":"Galopin, E."},{"full_name":"Lemaitre, A.","last_name":"Lemaitre","first_name":"A."},{"first_name":"J.","full_name":"Tignon, J.","last_name":"Tignon"},{"first_name":"Stefan","full_name":"Schumacher, Stefan","id":"27271","last_name":"Schumacher","orcid":"0000-0003-4042-4951"},{"full_name":"Baudin, E.","last_name":"Baudin","first_name":"E."},{"first_name":"R.","last_name":"Binder","full_name":"Binder, R."}],"date_updated":"2025-12-05T14:37:50Z","citation":{"ieee":"O. Lafont <i>et al.</i>, “Controlling the optical spin Hall effect with light,” <i>Applied Physics Letters</i>, Art. no. 061108, 2017, doi: <a href=\"https://doi.org/10.1063/1.4975681\">10.1063/1.4975681</a>.","chicago":"Lafont, O., S. M. H. Luk, P. Lewandowski, N. H. Kwong, P. T. Leung, E. Galopin, A. Lemaitre, et al. “Controlling the Optical Spin Hall Effect with Light.” <i>Applied Physics Letters</i>, 2017. <a href=\"https://doi.org/10.1063/1.4975681\">https://doi.org/10.1063/1.4975681</a>.","ama":"Lafont O, Luk SMH, Lewandowski P, et al. Controlling the optical spin Hall effect with light. <i>Applied Physics Letters</i>. Published online 2017. doi:<a href=\"https://doi.org/10.1063/1.4975681\">10.1063/1.4975681</a>","apa":"Lafont, O., Luk, S. M. H., Lewandowski, P., Kwong, N. H., Leung, P. T., Galopin, E., Lemaitre, A., Tignon, J., Schumacher, S., Baudin, E., &#38; Binder, R. (2017). Controlling the optical spin Hall effect with light. <i>Applied Physics Letters</i>, Article 061108. <a href=\"https://doi.org/10.1063/1.4975681\">https://doi.org/10.1063/1.4975681</a>","mla":"Lafont, O., et al. “Controlling the Optical Spin Hall Effect with Light.” <i>Applied Physics Letters</i>, 061108, 2017, doi:<a href=\"https://doi.org/10.1063/1.4975681\">10.1063/1.4975681</a>.","short":"O. Lafont, S.M.H. Luk, P. Lewandowski, N.H. Kwong, P.T. Leung, E. Galopin, A. Lemaitre, J. Tignon, S. Schumacher, E. Baudin, R. Binder, Applied Physics Letters (2017).","bibtex":"@article{Lafont_Luk_Lewandowski_Kwong_Leung_Galopin_Lemaitre_Tignon_Schumacher_Baudin_et al._2017, title={Controlling the optical spin Hall effect with light}, DOI={<a href=\"https://doi.org/10.1063/1.4975681\">10.1063/1.4975681</a>}, number={061108}, journal={Applied Physics Letters}, author={Lafont, O. and Luk, S. M. H. and Lewandowski, P. and Kwong, N. H. and Leung, P. T. and Galopin, E. and Lemaitre, A. and Tignon, J. and Schumacher, Stefan and Baudin, E. and et al.}, year={2017} }"},"year":"2017","publication_identifier":{"issn":["0003-6951","1077-3118"]},"publication_status":"published"},{"citation":{"apa":"Mackwitz, P., Rüsing, M., Berth, G., Widhalm, A., Müller, K., &#38; Zrenner, A. (2016). Periodic domain inversion in x-cut single-crystal lithium niobate thin film. <i>Applied Physics Letters</i>, <i>108</i>(15), Article 152902. <a href=\"https://doi.org/10.1063/1.4946010\">https://doi.org/10.1063/1.4946010</a>","mla":"Mackwitz, P., et al. “Periodic Domain Inversion in X-Cut Single-Crystal Lithium Niobate Thin Film.” <i>Applied Physics Letters</i>, vol. 108, no. 15, 152902, AIP Publishing, 2016, doi:<a href=\"https://doi.org/10.1063/1.4946010\">10.1063/1.4946010</a>.","bibtex":"@article{Mackwitz_Rüsing_Berth_Widhalm_Müller_Zrenner_2016, title={Periodic domain inversion in x-cut single-crystal lithium niobate thin film}, volume={108}, DOI={<a href=\"https://doi.org/10.1063/1.4946010\">10.1063/1.4946010</a>}, number={15152902}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Mackwitz, P. and Rüsing, Michael and Berth, Gerhard and Widhalm, A. and Müller, K. and Zrenner, Artur}, year={2016} }","short":"P. Mackwitz, M. Rüsing, G. Berth, A. Widhalm, K. Müller, A. Zrenner, Applied Physics Letters 108 (2016).","ama":"Mackwitz P, Rüsing M, Berth G, Widhalm A, Müller K, Zrenner A. Periodic domain inversion in x-cut single-crystal lithium niobate thin film. <i>Applied Physics Letters</i>. 2016;108(15). doi:<a href=\"https://doi.org/10.1063/1.4946010\">10.1063/1.4946010</a>","ieee":"P. Mackwitz, M. Rüsing, G. Berth, A. Widhalm, K. Müller, and A. Zrenner, “Periodic domain inversion in x-cut single-crystal lithium niobate thin film,” <i>Applied Physics Letters</i>, vol. 108, no. 15, Art. no. 152902, 2016, doi: <a href=\"https://doi.org/10.1063/1.4946010\">10.1063/1.4946010</a>.","chicago":"Mackwitz, P., Michael Rüsing, Gerhard Berth, A. Widhalm, K. Müller, and Artur Zrenner. “Periodic Domain Inversion in X-Cut Single-Crystal Lithium Niobate Thin Film.” <i>Applied Physics Letters</i> 108, no. 15 (2016). <a href=\"https://doi.org/10.1063/1.4946010\">https://doi.org/10.1063/1.4946010</a>."},"intvolume":"       108","year":"2016","issue":"15","publication_status":"published","publication_identifier":{"issn":["0003-6951","1077-3118"]},"doi":"10.1063/1.4946010","title":"Periodic domain inversion in x-cut single-crystal lithium niobate thin film","date_created":"2018-08-29T08:16:14Z","author":[{"first_name":"P.","last_name":"Mackwitz","full_name":"Mackwitz, P."},{"id":"22501","full_name":"Rüsing, Michael","last_name":"Rüsing","orcid":"0000-0003-4682-4577","first_name":"Michael"},{"id":"53","full_name":"Berth, Gerhard","last_name":"Berth","first_name":"Gerhard"},{"first_name":"A.","full_name":"Widhalm, A.","last_name":"Widhalm"},{"full_name":"Müller, K.","last_name":"Müller","first_name":"K."},{"first_name":"Artur","last_name":"Zrenner","orcid":"0000-0002-5190-0944","full_name":"Zrenner, Artur","id":"606"}],"volume":108,"date_updated":"2023-10-09T08:05:45Z","publisher":"AIP Publishing","status":"public","abstract":[{"lang":"eng","text":"We report the fabrication of periodically poled domain patterns in x-cut lithium niobate thin-film.\r\nHere, thin films on insulator have drawn particular attention due to their intrinsic waveguiding\r\nproperties offering high mode confinement and smaller devices compared to in-diffused waveguides\r\nin bulk material. In contrast to z-cut thin film lithium niobate, the x-cut geometry does not\r\nrequire back electrodes for poling. Further, the x-cut geometry grants direct access to the largest\r\nnonlinear and electro-optical tensor element, which overall promises smaller devices. The domain\r\ninversion was realized via electric field poling utilizing deposited aluminum top electrodes on a\r\nstack of LN thin film/SiO2 layer/Bulk LN, which were patterned by optical lithography. The periodic\r\ndomain inversion was verified by non-invasive confocal second harmonic microscopy. Our\r\nresults show domain patterns in accordance to the electrode mask layout. The second harmonic signatures\r\ncan be interpreted in terms of spatially, overlapping domain filaments which start their\r\ngrowth on the þz side."}],"type":"journal_article","publication":"Applied Physics Letters","language":[{"iso":"eng"}],"article_type":"original","article_number":"152902","user_id":"14931","department":[{"_id":"15"},{"_id":"230"},{"_id":"35"}],"project":[{"name":"TRR 142","_id":"53","grant_number":"231447078"},{"_id":"55","name":"TRR 142 - Project Area B"},{"_id":"68","name":"TRR 142 - Subproject B3","grant_number":"231447078"}],"_id":"4237"}]