[{"author":[{"first_name":"Huan","last_name":"Wei","full_name":"Wei, Huan"},{"last_name":"Wu","first_name":"Tong","full_name":"Wu, Tong"},{"first_name":"Chuanding","last_name":"Dong","full_name":"Dong, Chuanding"},{"last_name":"Chen","first_name":"Chen","full_name":"Chen, Chen"},{"full_name":"Gong, Zhenqi","last_name":"Gong","first_name":"Zhenqi"},{"full_name":"Xia, Jiangnan","last_name":"Xia","first_name":"Jiangnan"},{"last_name":"Peng","first_name":"Chengyuan","full_name":"Peng, Chengyuan"},{"full_name":"Ding, Jiaqi","last_name":"Ding","first_name":"Jiaqi"},{"first_name":"Yu","last_name":"Zhang","full_name":"Zhang, Yu"},{"last_name":"Shi","first_name":"Wenpei","full_name":"Shi, Wenpei"},{"last_name":"Schumacher","first_name":"Stefan","orcid":"0000-0003-4042-4951","full_name":"Schumacher, Stefan","id":"27271"},{"full_name":"Zhang, Xue","last_name":"Zhang","first_name":"Xue"},{"first_name":"Yugang","last_name":"Bai","full_name":"Bai, Yugang"},{"full_name":"Jiang, Lang","first_name":"Lang","last_name":"Jiang"},{"first_name":"Lei","last_name":"Liao","full_name":"Liao, Lei"},{"last_name":"Nguyen","first_name":"Thuc‐Quyen","full_name":"Nguyen, Thuc‐Quyen"},{"first_name":"Yuanyuan","last_name":"Hu","full_name":"Hu, Yuanyuan"}],"publication_identifier":{"issn":["2198-3844","2198-3844"]},"status":"public","year":"2025","title":"Efficient n‐Doping of Organic Semiconductors via a Broadly Applicable Nucleophilic‐Attack Mechanism","date_updated":"2025-12-05T13:40:48Z","publication_status":"published","_id":"62866","publisher":"Wiley","language":[{"iso":"eng"}],"article_number":"e20487","doi":"10.1002/advs.202520487","user_id":"16199","citation":{"ama":"Wei H, Wu T, Dong C, et al. Efficient n‐Doping of Organic Semiconductors via a Broadly Applicable Nucleophilic‐Attack Mechanism. Advanced Science. Published online 2025. doi:10.1002/advs.202520487","bibtex":"@article{Wei_Wu_Dong_Chen_Gong_Xia_Peng_Ding_Zhang_Shi_et al._2025, title={Efficient n‐Doping of Organic Semiconductors via a Broadly Applicable Nucleophilic‐Attack Mechanism}, DOI={10.1002/advs.202520487}, number={e20487}, journal={Advanced Science}, publisher={Wiley}, author={Wei, Huan and Wu, Tong and Dong, Chuanding and Chen, Chen and Gong, Zhenqi and Xia, Jiangnan and Peng, Chengyuan and Ding, Jiaqi and Zhang, Yu and Shi, Wenpei and et al.}, year={2025} }","mla":"Wei, Huan, et al. “Efficient N‐Doping of Organic Semiconductors via a Broadly Applicable Nucleophilic‐Attack Mechanism.” Advanced Science, e20487, Wiley, 2025, doi:10.1002/advs.202520487.","short":"H. Wei, T. Wu, C. Dong, C. Chen, Z. Gong, J. Xia, C. Peng, J. Ding, Y. Zhang, W. Shi, S. Schumacher, X. Zhang, Y. Bai, L. Jiang, L. Liao, T. Nguyen, Y. Hu, Advanced Science (2025).","chicago":"Wei, Huan, Tong Wu, Chuanding Dong, Chen Chen, Zhenqi Gong, Jiangnan Xia, Chengyuan Peng, et al. “Efficient N‐Doping of Organic Semiconductors via a Broadly Applicable Nucleophilic‐Attack Mechanism.” Advanced Science, 2025. https://doi.org/10.1002/advs.202520487.","apa":"Wei, H., Wu, T., Dong, C., Chen, C., Gong, Z., Xia, J., Peng, C., Ding, J., Zhang, Y., Shi, W., Schumacher, S., Zhang, X., Bai, Y., Jiang, L., Liao, L., Nguyen, T., & Hu, Y. (2025). Efficient n‐Doping of Organic Semiconductors via a Broadly Applicable Nucleophilic‐Attack Mechanism. Advanced Science, Article e20487. https://doi.org/10.1002/advs.202520487","ieee":"H. Wei et al., “Efficient n‐Doping of Organic Semiconductors via a Broadly Applicable Nucleophilic‐Attack Mechanism,” Advanced Science, Art. no. e20487, 2025, doi: 10.1002/advs.202520487."},"publication":"Advanced Science","abstract":[{"text":"Abstract\r\n \r\n The development of efficient and broadly applicable n‐doping strategies for organic semiconductors (OSCs) is crucial for advancing the performance of various organic electronic devices. Here, a novel nucleophilic‐attack n‐doping mechanism is unveiled that achieves exceptionally high conductivity in doped OSC films and demonstrates broad applicability across OSCs. The remarkable efficacy of n‐Butyl lithium (n‐BuLi) is highlighted in n‐doping C\r\n 60\r\n and PC\r\n 61\r\n BM, achieving a conductivity of 1.27 S cm\r\n −1\r\n and 2.57 S cm\r\n −1\r\n , respectively, which are among the highest reported values for these materials. The investigation reveals that the n‐BuLi anion interacts with electron‐deficient units in OSCs, generating a carbanion that facilitates efficient electron transfer for n‐doping. This mechanism is further validated across diverse fullerenes, polymeric, and small molecule OSCs, and is extendable to other high‐performance dopants such as tert‐Butyllithium (tert‐BuLi) and sodium ethoxide (NaOEt). Device studies show that n‐BuLi‐doped C\r\n 60\r\n enables substantially improved diode rectification, attributed to greater junction built‐in potential. These findings establish a unified chemical‐bonding‐based n‐doping paradigm, complementing existing electrophilic‐attack p‐doping concepts, and pave the way for achieving efficient doping of OSCs for advanced organic electronic applications.\r\n ","lang":"eng"}],"date_created":"2025-12-04T12:30:39Z","department":[{"_id":"15"},{"_id":"170"},{"_id":"297"},{"_id":"705"},{"_id":"35"},{"_id":"230"}],"type":"journal_article"},{"doi":"10.48550/ARXIV.2507.07099","user_id":"16199","publisher":"Arxiv","_id":"60992","language":[{"iso":"eng"}],"date_updated":"2025-12-05T13:55:48Z","title":"Sensitivity and Topology of Exceptional Rings in Nonlinear Non-Hermitian Planar Optical Microcavities","year":"2025","status":"public","author":[{"id":"69187","first_name":"Jan","last_name":"Wingenbach","full_name":"Wingenbach, Jan"},{"first_name":"Laura ","last_name":"Ares Santos","full_name":"Ares Santos, Laura "},{"id":"59416","first_name":"Xuekai","last_name":"Ma","full_name":"Ma, Xuekai"},{"id":"75127","last_name":"Sperling","orcid":"0000-0002-5844-3205","first_name":"Jan","full_name":"Sperling, Jan"},{"id":"27271","last_name":"Schumacher","orcid":"0000-0003-4042-4951","first_name":"Stefan","full_name":"Schumacher, Stefan"}],"type":"journal_article","department":[{"_id":"15"},{"_id":"170"},{"_id":"297"},{"_id":"706"},{"_id":"705"},{"_id":"35"},{"_id":"230"},{"_id":"429"},{"_id":"27"}],"date_created":"2025-08-25T11:15:22Z","abstract":[{"lang":"eng","text":"Non-Hermitian systems hosting exceptional points (EPs) exhibit enhanced sensitivity and unconventional mode dynamics. Going beyond isolated EPs, here we report on the existence of exceptional rings (ERs) in planar optical resonators with specific form of circular dichroism and TE-TM splitting. Such exceptional rings possess intriguing topologies as discussed earlier for condensed matter systems, but they remain virtually unexplored in presence of nonlinearity, for which our photonic platform is ideal. We find that when Kerr-type nonlinearity (or saturable gain) is introduced, the linear ER splits into two concentric ERs, with the larger-radius ring being a ring of third-order EPs. Transitioning from linear to nonlinear regime, we present a rigorous analysis of spectral topology and report enhanced and adjustable perturbation response in the nonlinear regime. Whereas certain features are specific to our system, the results on non-Hermitian spectral topology and nonlinearity-enhanced perturbation response are generic and equally relevant to a broad class of other nonlinear non-Hermitian systems, providing a universal framework for engineering ERs and EPs in nonlinear non-Hermitian systems."}],"project":[{"name":"Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"},{"name":"TRR 142: Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten zu funktionellen Strukturen","_id":"53"},{"name":"TRR 142 ; TP: C10: Erzeugung und Charakterisierung von Quantenlicht in nichtlinearen Systemen: Eine theoretische Analyse","_id":"174"},{"name":"TRR 142 - Project Area C","_id":"56"}],"publication":"Arxiv","citation":{"chicago":"Wingenbach, Jan, Laura Ares Santos, Xuekai Ma, Jan Sperling, and Stefan Schumacher. “Sensitivity and Topology of Exceptional Rings in Nonlinear Non-Hermitian Planar Optical Microcavities.” Arxiv, 2025. https://doi.org/10.48550/ARXIV.2507.07099.","short":"J. Wingenbach, L. Ares Santos, X. Ma, J. Sperling, S. Schumacher, Arxiv (2025).","ieee":"J. Wingenbach, L. Ares Santos, X. Ma, J. Sperling, and S. Schumacher, “Sensitivity and Topology of Exceptional Rings in Nonlinear Non-Hermitian Planar Optical Microcavities,” Arxiv, 2025, doi: 10.48550/ARXIV.2507.07099.","apa":"Wingenbach, J., Ares Santos, L., Ma, X., Sperling, J., & Schumacher, S. (2025). Sensitivity and Topology of Exceptional Rings in Nonlinear Non-Hermitian Planar Optical Microcavities. Arxiv. https://doi.org/10.48550/ARXIV.2507.07099","bibtex":"@article{Wingenbach_Ares Santos_Ma_Sperling_Schumacher_2025, title={Sensitivity and Topology of Exceptional Rings in Nonlinear Non-Hermitian Planar Optical Microcavities}, DOI={10.48550/ARXIV.2507.07099}, journal={Arxiv}, publisher={Arxiv}, author={Wingenbach, Jan and Ares Santos, Laura and Ma, Xuekai and Sperling, Jan and Schumacher, Stefan}, year={2025} }","ama":"Wingenbach J, Ares Santos L, Ma X, Sperling J, Schumacher S. Sensitivity and Topology of Exceptional Rings in Nonlinear Non-Hermitian Planar Optical Microcavities. Arxiv. Published online 2025. doi:10.48550/ARXIV.2507.07099","mla":"Wingenbach, Jan, et al. “Sensitivity and Topology of Exceptional Rings in Nonlinear Non-Hermitian Planar Optical Microcavities.” Arxiv, Arxiv, 2025, doi:10.48550/ARXIV.2507.07099."}},{"type":"journal_article","department":[{"_id":"15"},{"_id":"170"},{"_id":"295"},{"_id":"35"},{"_id":"230"},{"_id":"27"}],"date_created":"2025-12-05T14:15:35Z","abstract":[{"lang":"eng","text":"Abstract\r\n \r\n Negatively charged boron vacancies () in hexagonal boron nitride (hBN) are emerging as promising solid‐state spin qubits due to their optical accessibility, structural simplicity, and compatibility with photonic platforms. However, quantifying the density of such defects in thin hBN flakes has remained elusive, limiting progress in device integration and reproducibility. Here, an all‐optical method is presented to quantify defect density in hBN by correlating Raman and photoluminescence (PL) signatures with irradiation fluence. Two defect‐induced Raman modes, D1 and D2, are identified and assigned them to vibrational modes of using polarization‐resolved Raman measurements and density functional theory (DFT) calculations. By adapting a numerical model originally developed for graphene, an empirical relationship linking Raman (D1,\r\n E\r\n 2g\r\n ) and PL intensities is established to absolute defect densities. This method is universally applicable across various irradiation types and uniquely suited for thin flakes, where conventional techniques fail. The approach enables accurate, direct, and non‐destructive quantification of spin defect densities down to 10\r\n 15\r\n defects/cm\r\n 3\r\n , offering a powerful tool for optimizing and benchmarking hBN for quantum optical applications.\r\n "}],"project":[{"_id":"52","name":"Computing Resources Provided by the Paderborn Center for Parallel Computing"}],"publication":"Advanced Functional Materials","citation":{"ama":"Patra A, Konrad P, Sperlich A, et al. Quantifying Spin Defect Density in hBN via Raman and Photoluminescence Analysis. Advanced Functional Materials. Published online 2025. doi:10.1002/adfm.202517851","bibtex":"@article{Patra_Konrad_Sperlich_Biktagirov_Schmidt_Spencer_Aharonovich_Höfling_Dyakonov_2025, title={Quantifying Spin Defect Density in hBN via Raman and Photoluminescence Analysis}, DOI={10.1002/adfm.202517851}, number={e17851}, journal={Advanced Functional Materials}, publisher={Wiley}, author={Patra, Atanu and Konrad, Paul and Sperlich, Andreas and Biktagirov, Timur and Schmidt, Wolf Gero and Spencer, Lesley and Aharonovich, Igor and Höfling, Sven and Dyakonov, Vladimir}, year={2025} }","mla":"Patra, Atanu, et al. “Quantifying Spin Defect Density in HBN via Raman and Photoluminescence Analysis.” Advanced Functional Materials, e17851, Wiley, 2025, doi:10.1002/adfm.202517851.","short":"A. Patra, P. Konrad, A. Sperlich, T. Biktagirov, W.G. Schmidt, L. Spencer, I. Aharonovich, S. Höfling, V. Dyakonov, Advanced Functional Materials (2025).","chicago":"Patra, Atanu, Paul Konrad, Andreas Sperlich, Timur Biktagirov, Wolf Gero Schmidt, Lesley Spencer, Igor Aharonovich, Sven Höfling, and Vladimir Dyakonov. “Quantifying Spin Defect Density in HBN via Raman and Photoluminescence Analysis.” Advanced Functional Materials, 2025. https://doi.org/10.1002/adfm.202517851.","apa":"Patra, A., Konrad, P., Sperlich, A., Biktagirov, T., Schmidt, W. G., Spencer, L., Aharonovich, I., Höfling, S., & Dyakonov, V. (2025). Quantifying Spin Defect Density in hBN via Raman and Photoluminescence Analysis. Advanced Functional Materials, Article e17851. https://doi.org/10.1002/adfm.202517851","ieee":"A. Patra et al., “Quantifying Spin Defect Density in hBN via Raman and Photoluminescence Analysis,” Advanced Functional Materials, Art. no. e17851, 2025, doi: 10.1002/adfm.202517851."},"doi":"10.1002/adfm.202517851","user_id":"16199","article_number":"e17851","language":[{"iso":"eng"}],"_id":"62926","publisher":"Wiley","date_updated":"2025-12-05T14:18:27Z","publication_status":"published","year":"2025","status":"public","title":"Quantifying Spin Defect Density in hBN via Raman and Photoluminescence Analysis","publication_identifier":{"issn":["1616-301X","1616-3028"]},"author":[{"full_name":"Patra, Atanu","first_name":"Atanu","last_name":"Patra"},{"full_name":"Konrad, Paul","last_name":"Konrad","first_name":"Paul"},{"full_name":"Sperlich, Andreas","last_name":"Sperlich","first_name":"Andreas"},{"first_name":"Timur","last_name":"Biktagirov","full_name":"Biktagirov, Timur","id":"65612"},{"id":"468","first_name":"Wolf Gero","orcid":"0000-0002-2717-5076","last_name":"Schmidt","full_name":"Schmidt, Wolf Gero"},{"full_name":"Spencer, Lesley","last_name":"Spencer","first_name":"Lesley"},{"full_name":"Aharonovich, Igor","first_name":"Igor","last_name":"Aharonovich"},{"last_name":"Höfling","first_name":"Sven","full_name":"Höfling, Sven"},{"full_name":"Dyakonov, Vladimir","first_name":"Vladimir","last_name":"Dyakonov"}]},{"status":"public","publisher":"American Physical Society (APS)","_id":"62980","user_id":"16199","volume":7,"citation":{"chicago":"Kopylov, Denis A., Christian Offen, Laura Ares, Boris Edgar Wembe Moafo, Sina Ober-Blöbaum, Torsten Meier, Polina R. Sharapova, and Jan Sperling. “Multiphoton, Multimode State Classification for Nonlinear Optical Circuits.” Physical Review Research 7, no. 3 (2025). https://doi.org/10.1103/sv6z-v1gk.","short":"D.A. Kopylov, C. Offen, L. Ares, B.E. Wembe Moafo, S. Ober-Blöbaum, T. Meier, P.R. Sharapova, J. Sperling, Physical Review Research 7 (2025).","ieee":"D. A. Kopylov et al., “Multiphoton, multimode state classification for nonlinear optical circuits,” Physical Review Research, vol. 7, no. 3, Art. no. 033062, 2025, doi: 10.1103/sv6z-v1gk.","apa":"Kopylov, D. A., Offen, C., Ares, L., Wembe Moafo, B. E., Ober-Blöbaum, S., Meier, T., Sharapova, P. R., & Sperling, J. (2025). Multiphoton, multimode state classification for nonlinear optical circuits. Physical Review Research, 7(3), Article 033062. https://doi.org/10.1103/sv6z-v1gk","bibtex":"@article{Kopylov_Offen_Ares_Wembe Moafo_Ober-Blöbaum_Meier_Sharapova_Sperling_2025, title={Multiphoton, multimode state classification for nonlinear optical circuits}, volume={7}, DOI={10.1103/sv6z-v1gk}, number={3033062}, journal={Physical Review Research}, publisher={American Physical Society (APS)}, author={Kopylov, Denis A. and Offen, Christian and Ares, Laura and Wembe Moafo, Boris Edgar and Ober-Blöbaum, Sina and Meier, Torsten and Sharapova, Polina R. and Sperling, Jan}, year={2025} }","ama":"Kopylov DA, Offen C, Ares L, et al. Multiphoton, multimode state classification for nonlinear optical circuits. Physical Review Research. 2025;7(3). doi:10.1103/sv6z-v1gk","mla":"Kopylov, Denis A., et al. “Multiphoton, Multimode State Classification for Nonlinear Optical Circuits.” Physical Review Research, vol. 7, no. 3, 033062, American Physical Society (APS), 2025, doi:10.1103/sv6z-v1gk."},"project":[{"_id":"53","name":"TRR 142: Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten zu funktionellen Strukturen"},{"name":"TRR 142 - Project Area C","_id":"56"},{"_id":"174","name":"TRR 142 ; TP: C10: Erzeugung und Charakterisierung von Quantenlicht in nichtlinearen Systemen: Eine theoretische Analyse"},{"_id":"266","name":"PhoQC: Photonisches Quantencomputing"}],"year":"2025","title":"Multiphoton, multimode state classification for nonlinear optical circuits","author":[{"first_name":"Denis A.","last_name":"Kopylov","full_name":"Kopylov, Denis A."},{"id":"85279","orcid":"0000-0002-5940-8057","first_name":"Christian","last_name":"Offen","full_name":"Offen, Christian"},{"full_name":"Ares, Laura","last_name":"Ares","first_name":"Laura"},{"id":"95394","last_name":"Wembe Moafo","first_name":"Boris Edgar","full_name":"Wembe Moafo, Boris Edgar"},{"id":"16494","first_name":"Sina","last_name":"Ober-Blöbaum","full_name":"Ober-Blöbaum, Sina"},{"full_name":"Meier, Torsten","orcid":"0000-0001-8864-2072","last_name":"Meier","first_name":"Torsten","id":"344"},{"id":"60286","first_name":"Polina R.","last_name":"Sharapova","full_name":"Sharapova, Polina R."},{"id":"75127","first_name":"Jan","last_name":"Sperling","orcid":"0000-0002-5844-3205","full_name":"Sperling, Jan"}],"publication_identifier":{"issn":["2643-1564"]},"date_updated":"2025-12-09T09:10:01Z","publication_status":"published","intvolume":" 7","article_number":"033062","language":[{"iso":"eng"}],"doi":"10.1103/sv6z-v1gk","publication":"Physical Review Research","issue":"3","abstract":[{"lang":"eng","text":"We introduce a new classification of multimode states with a fixed number of photons. This classification is based on the factorizability of homogeneous multivariate polynomials and is invariant under unitary transformations. The classes physically correspond to field excitations in terms of single and multiple photons, each of which is in an arbitrary irreducible superposition of quantized modes. We further show how the transitions between classes are rendered possible by photon addition, photon subtraction, and photon-projection nonlinearities. We explicitly put forward a design for a multilayer interferometer in which the states for different classes can be generated with state-of-the-art experimental techniques. Limitations of the proposed designs are analyzed using the introduced classification, providing a benchmark for the robustness of certain states and classes."}],"date_created":"2025-12-09T09:08:39Z","type":"journal_article","department":[{"_id":"15"},{"_id":"569"},{"_id":"170"},{"_id":"293"},{"_id":"706"},{"_id":"636"},{"_id":"35"},{"_id":"230"},{"_id":"429"},{"_id":"623"}]},{"citation":{"apa":"Bianchi, L., Marconi, C., Sperling, J., & Bacco, D. (2025). Predetection squeezing as a resource for high-dimensional Bell-state measurements. Physical Review Research, 7(2), Article 023038. https://doi.org/10.1103/physrevresearch.7.023038","mla":"Bianchi, Luca, et al. “Predetection Squeezing as a Resource for High-Dimensional Bell-State Measurements.” Physical Review Research, vol. 7, no. 2, 023038, American Physical Society (APS), 2025, doi:10.1103/physrevresearch.7.023038.","ieee":"L. Bianchi, C. Marconi, J. Sperling, and D. Bacco, “Predetection squeezing as a resource for high-dimensional Bell-state measurements,” Physical Review Research, vol. 7, no. 2, Art. no. 023038, 2025, doi: 10.1103/physrevresearch.7.023038.","short":"L. Bianchi, C. Marconi, J. Sperling, D. Bacco, Physical Review Research 7 (2025).","ama":"Bianchi L, Marconi C, Sperling J, Bacco D. Predetection squeezing as a resource for high-dimensional Bell-state measurements. Physical Review Research. 2025;7(2). doi:10.1103/physrevresearch.7.023038","chicago":"Bianchi, Luca, Carlo Marconi, Jan Sperling, and Davide Bacco. “Predetection Squeezing as a Resource for High-Dimensional Bell-State Measurements.” Physical Review Research 7, no. 2 (2025). https://doi.org/10.1103/physrevresearch.7.023038.","bibtex":"@article{Bianchi_Marconi_Sperling_Bacco_2025, title={Predetection squeezing as a resource for high-dimensional Bell-state measurements}, volume={7}, DOI={10.1103/physrevresearch.7.023038}, number={2023038}, journal={Physical Review Research}, publisher={American Physical Society (APS)}, author={Bianchi, Luca and Marconi, Carlo and Sperling, Jan and Bacco, Davide}, year={2025} }"},"_id":"63021","publisher":"American Physical Society (APS)","volume":7,"user_id":"75127","status":"public","date_created":"2025-12-10T13:34:53Z","department":[{"_id":"623"},{"_id":"15"},{"_id":"170"},{"_id":"706"},{"_id":"429"}],"type":"journal_article","issue":"2","publication":"Physical Review Research","abstract":[{"text":"Bell measurements, entailing the projection onto one of the Bell states, play a key role in quantum information and communication, where the outcome of a variety of protocols crucially depends on the success probability of such measurements. Although in the case of qubit systems, Bell measurements can be implemented using only linear optical components, the same result is no longer true for qudits, where at least the use of ancillary photons is required. In order to circumvent this limitation, one possibility is to introduce nonlinear effects. In this work, we adopt the latter approach and propose a scalable Bell measurement scheme for high-dimensional states, exploiting multiple squeezer devices applied to a linear optical circuit for discriminating the different Bell states. Our approach does not require ancillary photons, is not limited by the dimension of the quantum states, and is experimentally scalable, thus paving the way toward the realization of an effective high-dimensional Bell measurement.","lang":"eng"}],"language":[{"iso":"eng"}],"article_number":"023038","doi":"10.1103/physrevresearch.7.023038","author":[{"first_name":"Luca","last_name":"Bianchi","full_name":"Bianchi, Luca"},{"last_name":"Marconi","first_name":"Carlo","full_name":"Marconi, Carlo"},{"orcid":"0000-0002-5844-3205","first_name":"Jan","last_name":"Sperling","full_name":"Sperling, Jan","id":"75127"},{"first_name":"Davide","last_name":"Bacco","full_name":"Bacco, Davide"}],"publication_identifier":{"issn":["2643-1564"]},"year":"2025","title":"Predetection squeezing as a resource for high-dimensional Bell-state measurements","intvolume":" 7","date_updated":"2025-12-10T13:36:11Z","publication_status":"published"},{"publication_status":"published","date_updated":"2025-12-11T12:52:24Z","intvolume":" 7","year":"2025","title":"Spectral correlations of dynamical resonance fluorescence","publication_identifier":{"issn":["2643-1564"]},"author":[{"full_name":"Bermúdez-Feijóo, Santiago","last_name":"Bermúdez-Feijóo","first_name":"Santiago"},{"first_name":"Eduardo","last_name":"Zubizarreta Casalengua","full_name":"Zubizarreta Casalengua, Eduardo"},{"last_name":"Müller","first_name":"Kai","full_name":"Müller, Kai"},{"full_name":"Jöns, Klaus","last_name":"Jöns","first_name":"Klaus","id":"85353"}],"doi":"10.1103/jmy9-bd3l","article_number":"033296","language":[{"iso":"eng"}],"abstract":[{"lang":"eng","text":"Frequency-filtered photon correlations have been proven to be extremely useful in grasping how the detection process alters photon statistics. Harnessing the spectral correlations also permits refinement of the emission and unraveling of previously hidden strong correlations in a plethora of quantum-optical systems under continuous-wave excitation. In this work, we investigate such correlations for time-dependent excitation and develop a methodology to compute efficiently time-integrated correlations, which are at the heart of the photon-counting theory, and subsequently apply it to analyze the photon emission of pulsed systems. By combining this formalism with the —which facilitates frequency-resolved correlations—we demonstrate how spectral filtering enhances single-photon purity and suppresses multiphoton noise in time-bin-encoded quantum states. Specifically, filtering the central spectral peak of a dynamically driven two-level system boosts temporal coherence and improves the fidelity of time-bin entanglement preparation, even under conditions favoring multiphoton emission. These results establish spectral filtering as a critical tool for tailoring photon statistics in pulsed quantum light sources."}],"issue":"3","publication":"Physical Review Research","type":"journal_article","department":[{"_id":"623"},{"_id":"15"},{"_id":"429"},{"_id":"642"}],"date_created":"2025-12-04T12:19:04Z","status":"public","user_id":"48188","volume":7,"_id":"62859","publisher":"American Physical Society (APS)","citation":{"short":"S. Bermúdez-Feijóo, E. Zubizarreta Casalengua, K. Müller, K. Jöns, Physical Review Research 7 (2025).","chicago":"Bermúdez-Feijóo, Santiago, Eduardo Zubizarreta Casalengua, Kai Müller, and Klaus Jöns. “Spectral Correlations of Dynamical Resonance Fluorescence.” Physical Review Research 7, no. 3 (2025). https://doi.org/10.1103/jmy9-bd3l.","ieee":"S. Bermúdez-Feijóo, E. Zubizarreta Casalengua, K. Müller, and K. Jöns, “Spectral correlations of dynamical resonance fluorescence,” Physical Review Research, vol. 7, no. 3, Art. no. 033296, 2025, doi: 10.1103/jmy9-bd3l.","apa":"Bermúdez-Feijóo, S., Zubizarreta Casalengua, E., Müller, K., & Jöns, K. (2025). Spectral correlations of dynamical resonance fluorescence. Physical Review Research, 7(3), Article 033296. https://doi.org/10.1103/jmy9-bd3l","bibtex":"@article{Bermúdez-Feijóo_Zubizarreta Casalengua_Müller_Jöns_2025, title={Spectral correlations of dynamical resonance fluorescence}, volume={7}, DOI={10.1103/jmy9-bd3l}, number={3033296}, journal={Physical Review Research}, publisher={American Physical Society (APS)}, author={Bermúdez-Feijóo, Santiago and Zubizarreta Casalengua, Eduardo and Müller, Kai and Jöns, Klaus}, year={2025} }","ama":"Bermúdez-Feijóo S, Zubizarreta Casalengua E, Müller K, Jöns K. Spectral correlations of dynamical resonance fluorescence. Physical Review Research. 2025;7(3). doi:10.1103/jmy9-bd3l","mla":"Bermúdez-Feijóo, Santiago, et al. “Spectral Correlations of Dynamical Resonance Fluorescence.” Physical Review Research, vol. 7, no. 3, 033296, American Physical Society (APS), 2025, doi:10.1103/jmy9-bd3l."}},{"type":"patent","department":[{"_id":"623"},{"_id":"15"},{"_id":"230"}],"application_number":"18957248","date_created":"2025-12-11T20:43:18Z","ipc":"US20250172751A1","citation":{"mla":"Güsken, Nicholas Alexander. Beam Steering Device and Electronic Apparatus Including the Same. 2025.","ama":"Güsken NA. Beam steering device and electronic apparatus including the same. Published online 2025.","bibtex":"@article{Güsken_2025, title={Beam steering device and electronic apparatus including the same}, author={Güsken, Nicholas Alexander}, year={2025} }","apa":"Güsken, N. A. (2025). Beam steering device and electronic apparatus including the same.","ieee":"N. A. Güsken, “Beam steering device and electronic apparatus including the same.” 2025.","chicago":"Güsken, Nicholas Alexander. “Beam Steering Device and Electronic Apparatus Including the Same,” 2025.","short":"N.A. Güsken, (2025)."},"publication_date":"2025/05/29","user_id":"112030","_id":"63050","date_updated":"2025-12-11T20:46:30Z","ipn":"18957248","title":"Beam steering device and electronic apparatus including the same","status":"public","year":"2025","author":[{"orcid":"0000-0002-4816-0666","first_name":"Nicholas Alexander","last_name":"Güsken","full_name":"Güsken, Nicholas Alexander","id":"112030"}]},{"oa":"1","citation":{"mla":"Lange, Nina Amelie, et al. “Widely Non-Degenerate Nonlinear Frequency Conversion in Cryogenic Titanium in-Diffused Lithium Niobate Waveguides.” Optics Express, vol. 33, no. 24, 50451, Optica Publishing Group, 2025, doi:10.1364/oe.578108.","bibtex":"@article{Lange_Lengeling_Mues_Quiring_Ridder_Eigner_Herrmann_Silberhorn_Bartley_2025, title={Widely non-degenerate nonlinear frequency conversion in cryogenic titanium in-diffused lithium niobate waveguides}, volume={33}, DOI={10.1364/oe.578108}, number={2450451}, journal={Optics Express}, publisher={Optica Publishing Group}, author={Lange, Nina Amelie and Lengeling, Sebastian and Mues, Philipp and Quiring, Viktor and Ridder, Werner and Eigner, Christof and Herrmann, Harald and Silberhorn, Christine and Bartley, Tim}, year={2025} }","ama":"Lange NA, Lengeling S, Mues P, et al. Widely non-degenerate nonlinear frequency conversion in cryogenic titanium in-diffused lithium niobate waveguides. Optics Express. 2025;33(24). doi:10.1364/oe.578108","ieee":"N. A. Lange et al., “Widely non-degenerate nonlinear frequency conversion in cryogenic titanium in-diffused lithium niobate waveguides,” Optics Express, vol. 33, no. 24, Art. no. 50451, 2025, doi: 10.1364/oe.578108.","apa":"Lange, N. A., Lengeling, S., Mues, P., Quiring, V., Ridder, W., Eigner, C., Herrmann, H., Silberhorn, C., & Bartley, T. (2025). Widely non-degenerate nonlinear frequency conversion in cryogenic titanium in-diffused lithium niobate waveguides. Optics Express, 33(24), Article 50451. https://doi.org/10.1364/oe.578108","chicago":"Lange, Nina Amelie, Sebastian Lengeling, Philipp Mues, Viktor Quiring, Werner Ridder, Christof Eigner, Harald Herrmann, Christine Silberhorn, and Tim Bartley. “Widely Non-Degenerate Nonlinear Frequency Conversion in Cryogenic Titanium in-Diffused Lithium Niobate Waveguides.” Optics Express 33, no. 24 (2025). https://doi.org/10.1364/oe.578108.","short":"N.A. Lange, S. Lengeling, P. Mues, V. Quiring, W. Ridder, C. Eigner, H. Herrmann, C. Silberhorn, T. Bartley, Optics Express 33 (2025)."},"project":[{"name":"TRR 142; TP C07: Hohlraum-verstärkte Parametrische Fluoreszenz mit zeitlicher Filterung unter Verwendung integrierter supraleitender Detektoren","_id":"171"}],"publisher":"Optica Publishing Group","_id":"62269","user_id":"49683","volume":33,"status":"public","date_created":"2025-11-20T10:35:35Z","type":"journal_article","department":[{"_id":"15"},{"_id":"623"},{"_id":"288"}],"publication":"Optics Express","issue":"24","abstract":[{"text":"The titanium in-diffused lithium niobate waveguide platform is well-established for reliable prototyping and packaging of many quantum photonic components at room temperature. Nevertheless, compatibility with certain quantum light sources and superconducting detectors requires operation under cryogenic conditions. We characterize alterations in phase-matching and mode guiding of a non-degenerate spontaneous parametric down-conversion process emitting around 1556 nm and 950 nm, under cryogenic conditions. Despite the effects of pyroelectricity and photorefraction, the spectral properties match our theoretical model. Nevertheless, these effects cause small but significant variations within and between cooling cycles. These measurements provide a first benchmark against which other nonlinear photonic integration platforms, such as thin-film lithium niobate, can be compared.","lang":"eng"}],"main_file_link":[{"open_access":"1"}],"article_number":"50451","language":[{"iso":"eng"}],"doi":"10.1364/oe.578108","year":"2025","title":"Widely non-degenerate nonlinear frequency conversion in cryogenic titanium in-diffused lithium niobate waveguides","author":[{"full_name":"Lange, Nina Amelie","first_name":"Nina Amelie","orcid":"0000-0001-6624-7098","last_name":"Lange","id":"56843"},{"id":"44373","last_name":"Lengeling","first_name":"Sebastian","full_name":"Lengeling, Sebastian"},{"id":"49772","orcid":"0000-0003-0643-7636","first_name":"Philipp","last_name":"Mues","full_name":"Mues, Philipp"},{"full_name":"Quiring, Viktor","last_name":"Quiring","first_name":"Viktor"},{"last_name":"Ridder","first_name":"Werner","full_name":"Ridder, Werner","id":"63574"},{"full_name":"Eigner, Christof","first_name":"Christof","orcid":"https://orcid.org/0000-0002-5693-3083","last_name":"Eigner","id":"13244"},{"id":"216","full_name":"Herrmann, Harald","first_name":"Harald","last_name":"Herrmann"},{"id":"26263","last_name":"Silberhorn","first_name":"Christine","full_name":"Silberhorn, Christine"},{"id":"49683","last_name":"Bartley","first_name":"Tim","full_name":"Bartley, Tim"}],"publication_identifier":{"issn":["1094-4087"]},"date_updated":"2025-12-12T12:13:45Z","publication_status":"published","intvolume":" 33","article_type":"original"},{"department":[{"_id":"15"},{"_id":"623"}],"oa":"1","type":"journal_article","date_created":"2025-06-30T08:58:37Z","project":[{"_id":"171","name":"TRR 142; TP C07: Hohlraum-verstärkte Parametrische Fluoreszenz mit zeitlicher Filterung unter Verwendung integrierter supraleitender Detektoren"}],"citation":{"chicago":"Brockmeier, Julian, Timon Schapeler, Nina Amelie Lange, Jan Philipp Höpker, Harald Herrmann, Christine Silberhorn, and Tim Bartley. “Harnessing Temporal Dispersion for Integrated Pump Filtering in Spontaneous Heralded Single-Photon Generation Processes.” New Journal of Physics, 2025. https://doi.org/10.1088/1367-2630/ade46c.","short":"J. Brockmeier, T. Schapeler, N.A. Lange, J.P. Höpker, H. Herrmann, C. Silberhorn, T. Bartley, New Journal of Physics (2025).","ieee":"J. Brockmeier et al., “Harnessing temporal dispersion for integrated pump filtering in spontaneous heralded single-photon generation processes,” New Journal of Physics, 2025, doi: 10.1088/1367-2630/ade46c.","apa":"Brockmeier, J., Schapeler, T., Lange, N. A., Höpker, J. P., Herrmann, H., Silberhorn, C., & Bartley, T. (2025). Harnessing temporal dispersion for integrated pump filtering in spontaneous heralded single-photon generation processes. New Journal of Physics. https://doi.org/10.1088/1367-2630/ade46c","bibtex":"@article{Brockmeier_Schapeler_Lange_Höpker_Herrmann_Silberhorn_Bartley_2025, title={Harnessing temporal dispersion for integrated pump filtering in spontaneous heralded single-photon generation processes}, DOI={10.1088/1367-2630/ade46c}, journal={New Journal of Physics}, author={Brockmeier, Julian and Schapeler, Timon and Lange, Nina Amelie and Höpker, Jan Philipp and Herrmann, Harald and Silberhorn, Christine and Bartley, Tim}, year={2025} }","ama":"Brockmeier J, Schapeler T, Lange NA, et al. Harnessing temporal dispersion for integrated pump filtering in spontaneous heralded single-photon generation processes. New Journal of Physics. Published online 2025. doi:10.1088/1367-2630/ade46c","mla":"Brockmeier, Julian, et al. “Harnessing Temporal Dispersion for Integrated Pump Filtering in Spontaneous Heralded Single-Photon Generation Processes.” New Journal of Physics, 2025, doi:10.1088/1367-2630/ade46c."},"publication":"New Journal of Physics","user_id":"56843","doi":"10.1088/1367-2630/ade46c","language":[{"iso":"eng"}],"_id":"60466","main_file_link":[{"open_access":"1"}],"date_updated":"2025-12-15T09:21:29Z","author":[{"id":"44807","first_name":"Julian","last_name":"Brockmeier","full_name":"Brockmeier, Julian"},{"full_name":"Schapeler, Timon","orcid":"0000-0001-7652-1716","last_name":"Schapeler","first_name":"Timon","id":"55629"},{"id":"56843","full_name":"Lange, Nina Amelie","last_name":"Lange","orcid":"0000-0001-6624-7098","first_name":"Nina Amelie"},{"full_name":"Höpker, Jan Philipp","first_name":"Jan Philipp","last_name":"Höpker","id":"33913"},{"last_name":"Herrmann","first_name":"Harald","full_name":"Herrmann, Harald","id":"216"},{"last_name":"Silberhorn","first_name":"Christine","full_name":"Silberhorn, Christine","id":"26263"},{"id":"49683","last_name":"Bartley","first_name":"Tim","full_name":"Bartley, Tim"}],"title":"Harnessing temporal dispersion for integrated pump filtering in spontaneous heralded single-photon generation processes","status":"public","year":"2025"},{"volume":112,"user_id":"16199","publisher":"American Physical Society (APS)","_id":"63160","status":"public","project":[{"name":"TRR 142: Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten zu funktionellen Strukturen","_id":"53"},{"_id":"54","name":"TRR 142 - Project Area A"},{"name":"TRR 142; TP A02: Nichtlineare Spektroskopie von Halbleiter-Nanostrukturen mit Quantenlicht","_id":"59"},{"_id":"445","name":"Hochleistungsrechner Noctua in Paderborn"},{"_id":"52","name":"Computing Resources Provided by the Paderborn Center for Parallel Computing"},{"name":"PhoQC: Photonisches Quantencomputing","_id":"266"}],"citation":{"short":"H. Rose, S. Schumacher, T. Meier, Physical Review B 112 (2025).","ama":"Rose H, Schumacher S, Meier T. Microscopic approach to the quantized light-matter interaction in semiconductor nanostructures: Complex coupled dynamics of excitons, biexcitons, and photons. Physical Review B. 2025;112(24). doi:10.1103/528f-7smh","chicago":"Rose, Hendrik, Stefan Schumacher, and Torsten Meier. “Microscopic Approach to the Quantized Light-Matter Interaction in Semiconductor Nanostructures: Complex Coupled Dynamics of Excitons, Biexcitons, and Photons.” Physical Review B 112, no. 24 (2025). https://doi.org/10.1103/528f-7smh.","bibtex":"@article{Rose_Schumacher_Meier_2025, title={Microscopic approach to the quantized light-matter interaction in semiconductor nanostructures: Complex coupled dynamics of excitons, biexcitons, and photons}, volume={112}, DOI={10.1103/528f-7smh}, number={24245304}, journal={Physical Review B}, publisher={American Physical Society (APS)}, author={Rose, Hendrik and Schumacher, Stefan and Meier, Torsten}, year={2025} }","mla":"Rose, Hendrik, et al. “Microscopic Approach to the Quantized Light-Matter Interaction in Semiconductor Nanostructures: Complex Coupled Dynamics of Excitons, Biexcitons, and Photons.” Physical Review B, vol. 112, no. 24, 245304, American Physical Society (APS), 2025, doi:10.1103/528f-7smh.","apa":"Rose, H., Schumacher, S., & Meier, T. (2025). Microscopic approach to the quantized light-matter interaction in semiconductor nanostructures: Complex coupled dynamics of excitons, biexcitons, and photons. Physical Review B, 112(24), Article 245304. https://doi.org/10.1103/528f-7smh","ieee":"H. Rose, S. Schumacher, and T. Meier, “Microscopic approach to the quantized light-matter interaction in semiconductor nanostructures: Complex coupled dynamics of excitons, biexcitons, and photons,” Physical Review B, vol. 112, no. 24, Art. no. 245304, 2025, doi: 10.1103/528f-7smh."},"doi":"10.1103/528f-7smh","language":[{"iso":"eng"}],"article_number":"245304","intvolume":" 112","publication_status":"published","date_updated":"2025-12-16T15:52:55Z","publication_identifier":{"issn":["2469-9950","2469-9969"]},"author":[{"id":"55958","full_name":"Rose, Hendrik","orcid":"0000-0002-3079-5428","first_name":"Hendrik","last_name":"Rose"},{"id":"27271","full_name":"Schumacher, Stefan","orcid":"0000-0003-4042-4951","first_name":"Stefan","last_name":"Schumacher"},{"first_name":"Torsten","last_name":"Meier","orcid":"0000-0001-8864-2072","full_name":"Meier, Torsten","id":"344"}],"year":"2025","title":"Microscopic approach to the quantized light-matter interaction in semiconductor nanostructures: Complex coupled dynamics of excitons, biexcitons, and photons","department":[{"_id":"15"},{"_id":"170"},{"_id":"293"},{"_id":"297"},{"_id":"623"},{"_id":"429"},{"_id":"230"},{"_id":"35"},{"_id":"27"}],"type":"journal_article","date_created":"2025-12-16T15:50:42Z","issue":"24","publication":"Physical Review B"},{"issue":"1","publication":"Nature Communications","type":"journal_article","department":[{"_id":"623"},{"_id":"15"},{"_id":"429"},{"_id":"642"}],"date_created":"2025-12-04T12:20:57Z","publication_status":"published","date_updated":"2025-12-17T11:36:14Z","intvolume":" 16","title":"Quantum teleportation with dissimilar quantum dots over a hybrid quantum network","year":"2025","publication_identifier":{"issn":["2041-1723"]},"author":[{"last_name":"Laneve","first_name":"Alessandro","full_name":"Laneve, Alessandro"},{"last_name":"Ronco","first_name":"Giuseppe","full_name":"Ronco, Giuseppe"},{"last_name":"Beccaceci","first_name":"Mattia","full_name":"Beccaceci, Mattia"},{"last_name":"Barigelli","first_name":"Paolo","full_name":"Barigelli, Paolo"},{"first_name":"Francesco","last_name":"Salusti","full_name":"Salusti, Francesco","id":"94793"},{"full_name":"Claro-Rodriguez, Nicolas","first_name":"Nicolas","last_name":"Claro-Rodriguez"},{"full_name":"De Pascalis, Giorgio","last_name":"De Pascalis","first_name":"Giorgio"},{"full_name":"Suprano, Alessia","first_name":"Alessia","last_name":"Suprano"},{"full_name":"Chiaudano, Leone","last_name":"Chiaudano","first_name":"Leone"},{"full_name":"Schöll, Eva","last_name":"Schöll","first_name":"Eva"},{"full_name":"Hanschke, Lukas","last_name":"Hanschke","first_name":"Lukas"},{"full_name":"Krieger, Tobias M.","last_name":"Krieger","first_name":"Tobias M."},{"first_name":"Quirin","last_name":"Buchinger","full_name":"Buchinger, Quirin"},{"full_name":"Covre da Silva, Saimon F.","last_name":"Covre da Silva","first_name":"Saimon F."},{"full_name":"Neuwirth, Julia","first_name":"Julia","last_name":"Neuwirth"},{"last_name":"Stroj","first_name":"Sandra","full_name":"Stroj, Sandra"},{"full_name":"Höfling, Sven","first_name":"Sven","last_name":"Höfling"},{"last_name":"Huber-Loyola","first_name":"Tobias","full_name":"Huber-Loyola, Tobias"},{"full_name":"Usuga Castaneda, Mario A.","first_name":"Mario A.","last_name":"Usuga Castaneda"},{"last_name":"Carvacho","first_name":"Gonzalo","full_name":"Carvacho, Gonzalo"},{"last_name":"Spagnolo","first_name":"Nicolò","full_name":"Spagnolo, Nicolò"},{"full_name":"Rota, Michele B.","first_name":"Michele B.","last_name":"Rota"},{"last_name":"Basso Basset","first_name":"Francesco","full_name":"Basso Basset, Francesco"},{"full_name":"Rastelli, Armando","last_name":"Rastelli","first_name":"Armando"},{"last_name":"Sciarrino","first_name":"Fabio","full_name":"Sciarrino, Fabio"},{"full_name":"Jöns, Klaus","last_name":"Jöns","first_name":"Klaus","id":"85353"},{"last_name":"Trotta","first_name":"Rinaldo","full_name":"Trotta, Rinaldo"}],"doi":"10.1038/s41467-025-65911-9","article_number":"10028","language":[{"iso":"eng"}],"citation":{"chicago":"Laneve, Alessandro, Giuseppe Ronco, Mattia Beccaceci, Paolo Barigelli, Francesco Salusti, Nicolas Claro-Rodriguez, Giorgio De Pascalis, et al. “Quantum Teleportation with Dissimilar Quantum Dots over a Hybrid Quantum Network.” Nature Communications 16, no. 1 (2025). https://doi.org/10.1038/s41467-025-65911-9.","ama":"Laneve A, Ronco G, Beccaceci M, et al. Quantum teleportation with dissimilar quantum dots over a hybrid quantum network. Nature Communications. 2025;16(1). doi:10.1038/s41467-025-65911-9","short":"A. Laneve, G. Ronco, M. Beccaceci, P. Barigelli, F. Salusti, N. Claro-Rodriguez, G. De Pascalis, A. Suprano, L. Chiaudano, E. Schöll, L. Hanschke, T.M. Krieger, Q. Buchinger, S.F. Covre da Silva, J. Neuwirth, S. Stroj, S. Höfling, T. Huber-Loyola, M.A. Usuga Castaneda, G. Carvacho, N. Spagnolo, M.B. Rota, F. Basso Basset, A. Rastelli, F. Sciarrino, K. Jöns, R. Trotta, Nature Communications 16 (2025).","bibtex":"@article{Laneve_Ronco_Beccaceci_Barigelli_Salusti_Claro-Rodriguez_De Pascalis_Suprano_Chiaudano_Schöll_et al._2025, title={Quantum teleportation with dissimilar quantum dots over a hybrid quantum network}, volume={16}, DOI={10.1038/s41467-025-65911-9}, number={110028}, journal={Nature Communications}, publisher={Springer Science and Business Media LLC}, author={Laneve, Alessandro and Ronco, Giuseppe and Beccaceci, Mattia and Barigelli, Paolo and Salusti, Francesco and Claro-Rodriguez, Nicolas and De Pascalis, Giorgio and Suprano, Alessia and Chiaudano, Leone and Schöll, Eva and et al.}, year={2025} }","apa":"Laneve, A., Ronco, G., Beccaceci, M., Barigelli, P., Salusti, F., Claro-Rodriguez, N., De Pascalis, G., Suprano, A., Chiaudano, L., Schöll, E., Hanschke, L., Krieger, T. M., Buchinger, Q., Covre da Silva, S. F., Neuwirth, J., Stroj, S., Höfling, S., Huber-Loyola, T., Usuga Castaneda, M. A., … Trotta, R. (2025). Quantum teleportation with dissimilar quantum dots over a hybrid quantum network. Nature Communications, 16(1), Article 10028. https://doi.org/10.1038/s41467-025-65911-9","mla":"Laneve, Alessandro, et al. “Quantum Teleportation with Dissimilar Quantum Dots over a Hybrid Quantum Network.” Nature Communications, vol. 16, no. 1, 10028, Springer Science and Business Media LLC, 2025, doi:10.1038/s41467-025-65911-9.","ieee":"A. Laneve et al., “Quantum teleportation with dissimilar quantum dots over a hybrid quantum network,” Nature Communications, vol. 16, no. 1, Art. no. 10028, 2025, doi: 10.1038/s41467-025-65911-9."},"status":"public","user_id":"48188","volume":16,"_id":"62861","publisher":"Springer Science and Business Media LLC"},{"quality_controlled":"1","citation":{"short":"M. Kirsch, C. Kießler, S. Lengeling, M. Stefszky, C. Eigner, H. Herrmann, C. Silberhorn, Optics & Laser Technology 193 (2025).","chicago":"Kirsch, Michelle, Christian Kießler, Sebastian Lengeling, Michael Stefszky, Christof Eigner, Harald Herrmann, and Christine Silberhorn. “Photorefraction and In-Situ Optical Cleaning in Various Types of LiNbO3 Waveguides.” Optics & Laser Technology 193 (2025). https://doi.org/10.1016/j.optlastec.2025.114260.","apa":"Kirsch, M., Kießler, C., Lengeling, S., Stefszky, M., Eigner, C., Herrmann, H., & Silberhorn, C. (2025). Photorefraction and in-situ optical cleaning in various types of LiNbO3 waveguides. Optics & Laser Technology, 193, Article 114260. https://doi.org/10.1016/j.optlastec.2025.114260","ieee":"M. Kirsch et al., “Photorefraction and in-situ optical cleaning in various types of LiNbO3 waveguides,” Optics & Laser Technology, vol. 193, Art. no. 114260, 2025, doi: 10.1016/j.optlastec.2025.114260.","ama":"Kirsch M, Kießler C, Lengeling S, et al. Photorefraction and in-situ optical cleaning in various types of LiNbO3 waveguides. Optics & Laser Technology. 2025;193. doi:10.1016/j.optlastec.2025.114260","bibtex":"@article{Kirsch_Kießler_Lengeling_Stefszky_Eigner_Herrmann_Silberhorn_2025, title={Photorefraction and in-situ optical cleaning in various types of LiNbO3 waveguides}, volume={193}, DOI={10.1016/j.optlastec.2025.114260}, number={114260}, journal={Optics & Laser Technology}, publisher={Elsevier BV}, author={Kirsch, Michelle and Kießler, Christian and Lengeling, Sebastian and Stefszky, Michael and Eigner, Christof and Herrmann, Harald and Silberhorn, Christine}, year={2025} }","mla":"Kirsch, Michelle, et al. “Photorefraction and In-Situ Optical Cleaning in Various Types of LiNbO3 Waveguides.” Optics & Laser Technology, vol. 193, 114260, Elsevier BV, 2025, doi:10.1016/j.optlastec.2025.114260."},"oa":"1","status":"public","user_id":"69553","volume":193,"publisher":"Elsevier BV","_id":"63192","abstract":[{"text":"Lithium niobate (LiNbO3) is a widely used material with several desirable physical properties, such as high second-order nonlinear optical and strong electro-optical effects. Thus LiNbO3 is used for various applications such as electro-optic modulation or nonlinear frequency conversion and mixing. But LiNbO3 also exhibits a strong photorefractive effect, which limits the intensity of the optical fields involved. Various approaches to reduce the photorefractive effect have been investigated, such as increasing the temperature, doping the crystal or using different waveguide designs in LiNbO3. Here, we present an analysis of the approach to increase the photorefractive damage threshold by using different waveguide designs. Contrary to previous claims and investigations, our SHG measurements revealed no significant difference in resistance to photorefractive damage when comparing conventional Ti-doped channel waveguides and Ti-doped diced ridge waveguides in LiNbO3. Furthermore, we have investigated the effect of photorefractive cleaning and curing using a light field at 532 nm. Here, we observe a reduction in the photorefractive effect at room temperature during and after SHG measurements, which is an easy alternative to conventional approaches.","lang":"eng"}],"publication":"Optics & Laser Technology","type":"journal_article","department":[{"_id":"288"},{"_id":"623"},{"_id":"15"}],"date_created":"2025-12-18T08:17:57Z","publication_status":"published","date_updated":"2025-12-18T08:27:13Z","article_type":"original","intvolume":" 193","title":"Photorefraction and in-situ optical cleaning in various types of LiNbO3 waveguides","year":"2025","publication_identifier":{"issn":["0030-3992"]},"author":[{"first_name":"Michelle","last_name":"Kirsch","full_name":"Kirsch, Michelle","id":"69553"},{"full_name":"Kießler, Christian","last_name":"Kießler","first_name":"Christian","id":"44252"},{"id":"44373","full_name":"Lengeling, Sebastian","first_name":"Sebastian","last_name":"Lengeling"},{"last_name":"Stefszky","first_name":"Michael","full_name":"Stefszky, Michael","id":"42777"},{"full_name":"Eigner, Christof","first_name":"Christof","last_name":"Eigner","orcid":"https://orcid.org/0000-0002-5693-3083","id":"13244"},{"full_name":"Herrmann, Harald","first_name":"Harald","last_name":"Herrmann","id":"216"},{"id":"26263","last_name":"Silberhorn","first_name":"Christine","full_name":"Silberhorn, Christine"}],"doi":"10.1016/j.optlastec.2025.114260","article_number":"114260","main_file_link":[{"url":"https://www.sciencedirect.com/science/article/pii/S0030399225018511?via%3Dihub","open_access":"1"}],"language":[{"iso":"eng"}]},{"status":"public","publisher":"American Physical Society (APS)","_id":"63213","volume":7,"user_id":"27150","citation":{"bibtex":"@article{Serino_Chesi_Brecht_Maccone_Macchiavello_Silberhorn_2025, title={Complementarity-based complementarity: The choice of mutually unbiased observables shapes quantum uncertainty relations}, volume={7}, DOI={10.1103/v24q-sl6n}, number={3033152}, journal={Physical Review Research}, publisher={American Physical Society (APS)}, author={Serino, Laura Maria and Chesi, Giovanni and Brecht, Benjamin and Maccone, Lorenzo and Macchiavello, Chiara and Silberhorn, Christine}, year={2025} }","ama":"Serino LM, Chesi G, Brecht B, Maccone L, Macchiavello C, Silberhorn C. Complementarity-based complementarity: The choice of mutually unbiased observables shapes quantum uncertainty relations. Physical Review Research. 2025;7(3). doi:10.1103/v24q-sl6n","short":"L.M. Serino, G. Chesi, B. Brecht, L. Maccone, C. Macchiavello, C. Silberhorn, Physical Review Research 7 (2025).","chicago":"Serino, Laura Maria, Giovanni Chesi, Benjamin Brecht, Lorenzo Maccone, Chiara Macchiavello, and Christine Silberhorn. “Complementarity-Based Complementarity: The Choice of Mutually Unbiased Observables Shapes Quantum Uncertainty Relations.” Physical Review Research 7, no. 3 (2025). https://doi.org/10.1103/v24q-sl6n.","ieee":"L. M. Serino, G. Chesi, B. Brecht, L. Maccone, C. Macchiavello, and C. Silberhorn, “Complementarity-based complementarity: The choice of mutually unbiased observables shapes quantum uncertainty relations,” Physical Review Research, vol. 7, no. 3, Art. no. 033152, 2025, doi: 10.1103/v24q-sl6n.","apa":"Serino, L. M., Chesi, G., Brecht, B., Maccone, L., Macchiavello, C., & Silberhorn, C. (2025). Complementarity-based complementarity: The choice of mutually unbiased observables shapes quantum uncertainty relations. Physical Review Research, 7(3), Article 033152. https://doi.org/10.1103/v24q-sl6n","mla":"Serino, Laura Maria, et al. “Complementarity-Based Complementarity: The Choice of Mutually Unbiased Observables Shapes Quantum Uncertainty Relations.” Physical Review Research, vol. 7, no. 3, 033152, American Physical Society (APS), 2025, doi:10.1103/v24q-sl6n."},"publication_identifier":{"issn":["2643-1564"]},"author":[{"full_name":"Serino, Laura Maria","last_name":"Serino","first_name":"Laura Maria","id":"88242"},{"full_name":"Chesi, Giovanni","first_name":"Giovanni","last_name":"Chesi"},{"id":"27150","full_name":"Brecht, Benjamin","last_name":"Brecht","first_name":"Benjamin","orcid":"0000-0003-4140-0556 "},{"last_name":"Maccone","first_name":"Lorenzo","full_name":"Maccone, Lorenzo"},{"full_name":"Macchiavello, Chiara","last_name":"Macchiavello","first_name":"Chiara"},{"id":"26263","full_name":"Silberhorn, Christine","last_name":"Silberhorn","first_name":"Christine"}],"year":"2025","title":"Complementarity-based complementarity: The choice of mutually unbiased observables shapes quantum uncertainty relations","article_type":"original","intvolume":" 7","publication_status":"published","date_updated":"2025-12-18T16:05:45Z","language":[{"iso":"eng"}],"article_number":"033152","doi":"10.1103/v24q-sl6n","publication":"Physical Review Research","issue":"3","abstract":[{"lang":"eng","text":"Quantum uncertainty relations impose fundamental limits on the joint knowledge that can be acquired from complementary observables: Perfect knowledge of a quantum state in one basis implies maximal indetermination in all other mutually unbiased bases (MUBs). Uncertainty relations derived from joint properties of the MUBs are generally assumed to be uniform, irrespective of the specific observables chosen within a set. In this work, we demonstrate instead that the uncertainty relations can depend on the choice of observables. Through both experimental observation and numerical methods, we show that selecting different sets of three MUBs in a five-dimensional quantum system results in distinct uncertainty bounds, i.e., in varying degrees of complementarity, in terms of both entropy and variance."}],"date_created":"2025-12-18T16:04:45Z","department":[{"_id":"15"},{"_id":"623"}],"type":"journal_article"},{"type":"book_chapter","department":[{"_id":"299"}],"date_created":"2025-12-18T14:53:55Z","place":"Bad Heilbrunn","publication":"Handbuch Lehrerinnen- und Lehrerbildung","citation":{"bibtex":"@inbook{Riese_Reinhold_2025, place={Bad Heilbrunn}, edition={2}, title={Physik in der Lehrerinnen- und Lehrerbildung - Empirisch fundierte Curricula in einer digitalen Welt}, DOI={10.35468/hblb2025-076}, booktitle={Handbuch Lehrerinnen- und Lehrerbildung}, publisher={Verlag Julius Klinkhardt}, author={Riese, Josef and Reinhold, Peter}, editor={Cramer, Colin and König, Johannes and Rothland, Martin}, year={2025} }","ama":"Riese J, Reinhold P. Physik in der Lehrerinnen- und Lehrerbildung - Empirisch fundierte Curricula in einer digitalen Welt. In: Cramer C, König J, Rothland M, eds. Handbuch Lehrerinnen- und Lehrerbildung. 2nd ed. Verlag Julius Klinkhardt; 2025. doi:10.35468/hblb2025-076","mla":"Riese, Josef, and Peter Reinhold. “Physik in der Lehrerinnen- und Lehrerbildung - Empirisch fundierte Curricula in einer digitalen Welt.” Handbuch Lehrerinnen- und Lehrerbildung, edited by Colin Cramer et al., 2nd ed., Verlag Julius Klinkhardt, 2025, doi:10.35468/hblb2025-076.","chicago":"Riese, Josef, and Peter Reinhold. “Physik in der Lehrerinnen- und Lehrerbildung - Empirisch fundierte Curricula in einer digitalen Welt.” In Handbuch Lehrerinnen- und Lehrerbildung, edited by Colin Cramer, Johannes König, and Martin Rothland, 2nd ed. Bad Heilbrunn: Verlag Julius Klinkhardt, 2025. https://doi.org/10.35468/hblb2025-076.","short":"J. Riese, P. Reinhold, in: C. Cramer, J. König, M. Rothland (Eds.), Handbuch Lehrerinnen- und Lehrerbildung, 2nd ed., Verlag Julius Klinkhardt, Bad Heilbrunn, 2025.","ieee":"J. Riese and P. Reinhold, “Physik in der Lehrerinnen- und Lehrerbildung - Empirisch fundierte Curricula in einer digitalen Welt,” in Handbuch Lehrerinnen- und Lehrerbildung, 2nd ed., C. Cramer, J. König, and M. Rothland, Eds. Bad Heilbrunn: Verlag Julius Klinkhardt, 2025.","apa":"Riese, J., & Reinhold, P. (2025). Physik in der Lehrerinnen- und Lehrerbildung - Empirisch fundierte Curricula in einer digitalen Welt. In C. Cramer, J. König, & M. Rothland (Eds.), Handbuch Lehrerinnen- und Lehrerbildung (2nd ed.). Verlag Julius Klinkhardt. https://doi.org/10.35468/hblb2025-076"},"user_id":"429","doi":"10.35468/hblb2025-076","editor":[{"last_name":"Cramer","first_name":"Colin","full_name":"Cramer, Colin"},{"last_name":"König","first_name":"Johannes ","full_name":"König, Johannes "},{"first_name":"Martin","last_name":"Rothland","full_name":"Rothland, Martin"}],"_id":"63212","language":[{"iso":"ger"}],"publisher":"Verlag Julius Klinkhardt","edition":"2","publication_status":"published","date_updated":"2025-12-18T15:04:58Z","year":"2025","status":"public","title":"Physik in der Lehrerinnen- und Lehrerbildung - Empirisch fundierte Curricula in einer digitalen Welt","author":[{"id":"429","full_name":"Riese, Josef","orcid":"0000-0003-2927-2619","last_name":"Riese","first_name":"Josef"},{"id":"416","full_name":"Reinhold, Peter","last_name":"Reinhold","first_name":"Peter"}],"publication_identifier":{"isbn":["978-3-8365-6544-6"]}},{"department":[{"_id":"15"},{"_id":"623"}],"type":"journal_article","date_created":"2025-12-18T16:06:13Z","abstract":[{"text":"We study a possibility of measuring the time-resolved second-order autocorrelation function of one of two beams generated in type-II parametric down-conversion by means of temporal magnification of this beam, bringing its correlation time from the picosecond to the nanosecond scale, which can be resolved by modern photodetectors. We show that such a measurement enables one to infer directly the degree of global coherence of that beam, which is linked by a simple relation to the number of modes characterizing the entanglement between the two generated beams. We illustrate the proposed method by an example of photon pairs generated in a periodically poled potassium titanyl phosphate (KTP) crystal with a symmetric group velocity matching for various durations of the pump pulse, resulting in different numbers of modes. Our theoretical model also shows that the magnified double-heralded autocorrelation function of one beam exhibits a local maximum around zero delay time, corresponding to photon bunching at a short time scale.","lang":"eng"}],"publication":"Physical Review A","issue":"2","doi":"10.1103/7ckm-tm3r","language":[{"iso":"eng"}],"article_number":"023703","intvolume":" 112","publication_status":"published","date_updated":"2025-12-18T16:06:34Z","publication_identifier":{"issn":["2469-9926","2469-9934"]},"author":[{"first_name":"Dmitri B.","last_name":"Horoshko","full_name":"Horoshko, Dmitri B."},{"first_name":"Shivang","last_name":"Srivastava","full_name":"Srivastava, Shivang"},{"full_name":"Sośnicki, Filip","first_name":"Filip","last_name":"Sośnicki"},{"full_name":"Mikołajczyk, Michał","last_name":"Mikołajczyk","first_name":"Michał"},{"full_name":"Karpiński, Michał","last_name":"Karpiński","first_name":"Michał"},{"full_name":"Brecht, Benjamin","first_name":"Benjamin","orcid":"0000-0003-4140-0556 ","last_name":"Brecht","id":"27150"},{"full_name":"Kolobov, Mikhail I.","first_name":"Mikhail I.","last_name":"Kolobov"}],"title":"Time-resolved second-order autocorrelation function of parametric down-conversion","year":"2025","citation":{"ieee":"D. B. Horoshko et al., “Time-resolved second-order autocorrelation function of parametric down-conversion,” Physical Review A, vol. 112, no. 2, Art. no. 023703, 2025, doi: 10.1103/7ckm-tm3r.","apa":"Horoshko, D. B., Srivastava, S., Sośnicki, F., Mikołajczyk, M., Karpiński, M., Brecht, B., & Kolobov, M. I. (2025). Time-resolved second-order autocorrelation function of parametric down-conversion. Physical Review A, 112(2), Article 023703. https://doi.org/10.1103/7ckm-tm3r","chicago":"Horoshko, Dmitri B., Shivang Srivastava, Filip Sośnicki, Michał Mikołajczyk, Michał Karpiński, Benjamin Brecht, and Mikhail I. Kolobov. “Time-Resolved Second-Order Autocorrelation Function of Parametric down-Conversion.” Physical Review A 112, no. 2 (2025). https://doi.org/10.1103/7ckm-tm3r.","short":"D.B. Horoshko, S. Srivastava, F. Sośnicki, M. Mikołajczyk, M. Karpiński, B. Brecht, M.I. Kolobov, Physical Review A 112 (2025).","mla":"Horoshko, Dmitri B., et al. “Time-Resolved Second-Order Autocorrelation Function of Parametric down-Conversion.” Physical Review A, vol. 112, no. 2, 023703, American Physical Society (APS), 2025, doi:10.1103/7ckm-tm3r.","bibtex":"@article{Horoshko_Srivastava_Sośnicki_Mikołajczyk_Karpiński_Brecht_Kolobov_2025, title={Time-resolved second-order autocorrelation function of parametric down-conversion}, volume={112}, DOI={10.1103/7ckm-tm3r}, number={2023703}, journal={Physical Review A}, publisher={American Physical Society (APS)}, author={Horoshko, Dmitri B. and Srivastava, Shivang and Sośnicki, Filip and Mikołajczyk, Michał and Karpiński, Michał and Brecht, Benjamin and Kolobov, Mikhail I.}, year={2025} }","ama":"Horoshko DB, Srivastava S, Sośnicki F, et al. Time-resolved second-order autocorrelation function of parametric down-conversion. Physical Review A. 2025;112(2). doi:10.1103/7ckm-tm3r"},"volume":112,"user_id":"27150","_id":"63214","publisher":"American Physical Society (APS)","status":"public"},{"doi":"10.1088/2058-9565/adb0ea","article_number":"025024","language":[{"iso":"eng"}],"publication_status":"published","date_updated":"2025-12-18T16:07:35Z","intvolume":" 10","title":"Self-guided tomography of time-frequency qudits","year":"2025","publication_identifier":{"issn":["2058-9565"]},"author":[{"last_name":"Serino","first_name":"Laura Maria","full_name":"Serino, Laura Maria","id":"88242"},{"full_name":"Rambach, Markus","last_name":"Rambach","first_name":"Markus"},{"id":"27150","full_name":"Brecht, Benjamin","first_name":"Benjamin","orcid":"0000-0003-4140-0556 ","last_name":"Brecht"},{"first_name":"Jacquiline","last_name":"Romero","full_name":"Romero, Jacquiline"},{"id":"26263","first_name":"Christine","last_name":"Silberhorn","full_name":"Silberhorn, Christine"}],"type":"journal_article","department":[{"_id":"15"},{"_id":"623"}],"date_created":"2025-12-18T16:07:11Z","abstract":[{"text":"Abstract\r\n High-dimensional time-frequency encodings have the potential to significantly advance quantum information science; however, practical applications require precise knowledge of the encoded quantum states, which becomes increasingly challenging for larger Hilbert spaces. Self-guided tomography (SGT) has emerged as a practical and scalable technique for this purpose in the spatial domain. Here, we apply SGT to estimate time-frequency states using a multi-output quantum pulse gate. We achieve fidelities of more than 99% for 3- and 5-dimensional states without the need for calibration or post-processing. We demonstrate the robustness of SGT against statistical and environmental noise, highlighting its efficacy in the photon-starved regime typical of quantum information applications.","lang":"eng"}],"publication":"Quantum Science and Technology","issue":"2","user_id":"27150","volume":10,"publisher":"IOP Publishing","_id":"63215","status":"public","citation":{"apa":"Serino, L. M., Rambach, M., Brecht, B., Romero, J., & Silberhorn, C. (2025). Self-guided tomography of time-frequency qudits. Quantum Science and Technology, 10(2), Article 025024. https://doi.org/10.1088/2058-9565/adb0ea","ieee":"L. M. Serino, M. Rambach, B. Brecht, J. Romero, and C. Silberhorn, “Self-guided tomography of time-frequency qudits,” Quantum Science and Technology, vol. 10, no. 2, Art. no. 025024, 2025, doi: 10.1088/2058-9565/adb0ea.","short":"L.M. Serino, M. Rambach, B. Brecht, J. Romero, C. Silberhorn, Quantum Science and Technology 10 (2025).","chicago":"Serino, Laura Maria, Markus Rambach, Benjamin Brecht, Jacquiline Romero, and Christine Silberhorn. “Self-Guided Tomography of Time-Frequency Qudits.” Quantum Science and Technology 10, no. 2 (2025). https://doi.org/10.1088/2058-9565/adb0ea.","mla":"Serino, Laura Maria, et al. “Self-Guided Tomography of Time-Frequency Qudits.” Quantum Science and Technology, vol. 10, no. 2, 025024, IOP Publishing, 2025, doi:10.1088/2058-9565/adb0ea.","ama":"Serino LM, Rambach M, Brecht B, Romero J, Silberhorn C. Self-guided tomography of time-frequency qudits. Quantum Science and Technology. 2025;10(2). doi:10.1088/2058-9565/adb0ea","bibtex":"@article{Serino_Rambach_Brecht_Romero_Silberhorn_2025, title={Self-guided tomography of time-frequency qudits}, volume={10}, DOI={10.1088/2058-9565/adb0ea}, number={2025024}, journal={Quantum Science and Technology}, publisher={IOP Publishing}, author={Serino, Laura Maria and Rambach, Markus and Brecht, Benjamin and Romero, Jacquiline and Silberhorn, Christine}, year={2025} }"}},{"publication":"Optics Express","issue":"25","abstract":[{"lang":"eng","text":"We present the design and characterization of a guided-wave, bright, and highly frequency non-degenerate parametric down-conversion (PDC) source in thin-film lithium niobate. The source generates photon pairs with wavelengths of 815 nm and 1550 nm, linking the visible wavelength regime with telecommunication wavelengths. We confirm the high quality of the generated single photons by determining a value for the heralded second-order correlation function as low as g_h^(2)=(6.7+/-1.1)*10^8-3). Furthermore, we achieve a high spectral brightness of 0.44·10pairs/(smWGHz) which is two orders of magnitude higher than sources based on weakly guiding waveguides. The shape of the PDC spectrum and the strong agreement between the effective and nominal bandwidth highlight our high fabrication quality of periodically poled waveguides. The good agreement between the measured and simulated spectral characteristics of our source demonstrates our excellent understanding of the PDC process. Our result is a valuable step towards practical and scalable quantum communication networks as well as photonic quantum computing."}],"date_created":"2025-12-15T07:20:36Z","department":[{"_id":"288"},{"_id":"623"}],"type":"journal_article","author":[{"first_name":"Silia","last_name":"Babel","orcid":"https://orcid.org/0000-0002-1568-2580","full_name":"Babel, Silia","id":"63231"},{"id":"61375","full_name":"Bollmers, Laura","last_name":"Bollmers","first_name":"Laura"},{"full_name":"Roeder, Franz","last_name":"Roeder","first_name":"Franz","id":"88149"},{"first_name":"Werner","last_name":"Ridder","full_name":"Ridder, Werner","id":"63574"},{"id":"40420","last_name":"Golla","first_name":"Christian","full_name":"Golla, Christian"},{"first_name":"Ronja","last_name":"Köthemann","full_name":"Köthemann, Ronja"},{"last_name":"Reineke","first_name":"Bernhard","full_name":"Reineke, Bernhard","id":"29821"},{"full_name":"Herrmann, Harald","first_name":"Harald","last_name":"Herrmann","id":"216"},{"orcid":"0000-0003-4140-0556 ","first_name":"Benjamin","last_name":"Brecht","full_name":"Brecht, Benjamin","id":"27150"},{"first_name":"Christof","orcid":"https://orcid.org/0000-0002-5693-3083","last_name":"Eigner","full_name":"Eigner, Christof","id":"13244"},{"first_name":"Laura","last_name":"Padberg","full_name":"Padberg, Laura","id":"40300"},{"id":"26263","full_name":"Silberhorn, Christine","first_name":"Christine","last_name":"Silberhorn"}],"publication_identifier":{"issn":["1094-4087"]},"title":"Ultrabright, two-color photon pair source based on thin-film lithium niobate for bridging visible and telecom wavelengths","year":"2025","article_type":"original","intvolume":" 33","publication_status":"published","date_updated":"2026-01-07T11:28:35Z","language":[{"iso":"eng"}],"article_number":"52729","main_file_link":[{"url":"https://opg.optica.org/oe/fulltext.cfm?uri=oe-33-25-52729","open_access":"1"}],"doi":"10.1364/oe.571605","citation":{"bibtex":"@article{Babel_Bollmers_Roeder_Ridder_Golla_Köthemann_Reineke_Herrmann_Brecht_Eigner_et al._2025, title={Ultrabright, two-color photon pair source based on thin-film lithium niobate for bridging visible and telecom wavelengths}, volume={33}, DOI={10.1364/oe.571605}, number={2552729}, journal={Optics Express}, publisher={Optica Publishing Group}, author={Babel, Silia and Bollmers, Laura and Roeder, Franz and Ridder, Werner and Golla, Christian and Köthemann, Ronja and Reineke, Bernhard and Herrmann, Harald and Brecht, Benjamin and Eigner, Christof and et al.}, year={2025} }","ama":"Babel S, Bollmers L, Roeder F, et al. Ultrabright, two-color photon pair source based on thin-film lithium niobate for bridging visible and telecom wavelengths. Optics Express. 2025;33(25). doi:10.1364/oe.571605","mla":"Babel, Silia, et al. “Ultrabright, Two-Color Photon Pair Source Based on Thin-Film Lithium Niobate for Bridging Visible and Telecom Wavelengths.” Optics Express, vol. 33, no. 25, 52729, Optica Publishing Group, 2025, doi:10.1364/oe.571605.","chicago":"Babel, Silia, Laura Bollmers, Franz Roeder, Werner Ridder, Christian Golla, Ronja Köthemann, Bernhard Reineke, et al. “Ultrabright, Two-Color Photon Pair Source Based on Thin-Film Lithium Niobate for Bridging Visible and Telecom Wavelengths.” Optics Express 33, no. 25 (2025). https://doi.org/10.1364/oe.571605.","short":"S. Babel, L. Bollmers, F. Roeder, W. Ridder, C. Golla, R. Köthemann, B. Reineke, H. Herrmann, B. Brecht, C. Eigner, L. Padberg, C. Silberhorn, Optics Express 33 (2025).","ieee":"S. Babel et al., “Ultrabright, two-color photon pair source based on thin-film lithium niobate for bridging visible and telecom wavelengths,” Optics Express, vol. 33, no. 25, Art. no. 52729, 2025, doi: 10.1364/oe.571605.","apa":"Babel, S., Bollmers, L., Roeder, F., Ridder, W., Golla, C., Köthemann, R., Reineke, B., Herrmann, H., Brecht, B., Eigner, C., Padberg, L., & Silberhorn, C. (2025). Ultrabright, two-color photon pair source based on thin-film lithium niobate for bridging visible and telecom wavelengths. Optics Express, 33(25), Article 52729. https://doi.org/10.1364/oe.571605"},"oa":"1","status":"public","_id":"63091","publisher":"Optica Publishing Group","volume":33,"user_id":"63231"},{"status":"public","user_id":"22501","volume":14,"page":"4761","publisher":"Walter de Gruyter GmbH","_id":"62713","quality_controlled":"1","citation":{"chicago":"Bollmers, Laura, Noah Spiegelberg, Michael Rüsing, Christof Eigner, Laura Padberg, and Christine Silberhorn. “Segmented Finger Electrodes to Optimize Ultra-Long Continuous Wafer-Scale Periodic Poling in Thin-Film Lithium Niobate.” Nanophotonics 14 (2025): 4761. https://doi.org/10.1515/nanoph-2025-0461.","short":"L. Bollmers, N. Spiegelberg, M. Rüsing, C. Eigner, L. Padberg, C. Silberhorn, Nanophotonics 14 (2025) 4761.","ieee":"L. Bollmers, N. Spiegelberg, M. Rüsing, C. Eigner, L. Padberg, and C. Silberhorn, “Segmented finger electrodes to optimize ultra-long continuous wafer-scale periodic poling in thin-film lithium niobate,” Nanophotonics, vol. 14, p. 4761, 2025, doi: 10.1515/nanoph-2025-0461.","apa":"Bollmers, L., Spiegelberg, N., Rüsing, M., Eigner, C., Padberg, L., & Silberhorn, C. (2025). Segmented finger electrodes to optimize ultra-long continuous wafer-scale periodic poling in thin-film lithium niobate. Nanophotonics, 14, 4761. https://doi.org/10.1515/nanoph-2025-0461","bibtex":"@article{Bollmers_Spiegelberg_Rüsing_Eigner_Padberg_Silberhorn_2025, title={Segmented finger electrodes to optimize ultra-long continuous wafer-scale periodic poling in thin-film lithium niobate}, volume={14}, DOI={10.1515/nanoph-2025-0461}, journal={Nanophotonics}, publisher={Walter de Gruyter GmbH}, author={Bollmers, Laura and Spiegelberg, Noah and Rüsing, Michael and Eigner, Christof and Padberg, Laura and Silberhorn, Christine}, year={2025}, pages={4761} }","ama":"Bollmers L, Spiegelberg N, Rüsing M, Eigner C, Padberg L, Silberhorn C. Segmented finger electrodes to optimize ultra-long continuous wafer-scale periodic poling in thin-film lithium niobate. Nanophotonics. 2025;14:4761. doi:10.1515/nanoph-2025-0461","mla":"Bollmers, Laura, et al. “Segmented Finger Electrodes to Optimize Ultra-Long Continuous Wafer-Scale Periodic Poling in Thin-Film Lithium Niobate.” Nanophotonics, vol. 14, Walter de Gruyter GmbH, 2025, p. 4761, doi:10.1515/nanoph-2025-0461."},"oa":"1","publication_status":"published","date_updated":"2026-01-07T12:06:29Z","article_type":"original","intvolume":" 14","year":"2025","title":"Segmented finger electrodes to optimize ultra-long continuous wafer-scale periodic poling in thin-film lithium niobate","author":[{"id":"61375","first_name":"Laura","last_name":"Bollmers","full_name":"Bollmers, Laura"},{"first_name":"Noah","last_name":"Spiegelberg","full_name":"Spiegelberg, Noah"},{"full_name":"Rüsing, Michael","last_name":"Rüsing","first_name":"Michael","orcid":"0000-0003-4682-4577","id":"22501"},{"id":"13244","first_name":"Christof","last_name":"Eigner","orcid":"https://orcid.org/0000-0002-5693-3083","full_name":"Eigner, Christof"},{"id":"40300","full_name":"Padberg, Laura","first_name":"Laura","last_name":"Padberg"},{"full_name":"Silberhorn, Christine","first_name":"Christine","last_name":"Silberhorn","id":"26263"}],"publication_identifier":{"issn":["2192-8606","2192-8614"]},"doi":"10.1515/nanoph-2025-0461","main_file_link":[{"open_access":"1","url":"https://doi.org/10.1515/nanoph-2025-0461"}],"language":[{"iso":"eng"}],"abstract":[{"text":"Periodically poled thin-film lithium niobate (TFLN) crystals are the fundamental building block for highly-efficient quantum light sources and frequency converters. The efficiency of these devices is strongly dependent on the interaction length between the light and the nonlinear material, scaling quadratically with this parameter. Nevertheless, the fabrication of long, continuously poled areas in TFLN remains challenging, the length of continuously poled areas rarely exceeds 10 mm. In this work, we demonstrate a significant progress in this field achieving the periodic poling of continuous poled areas of 70 mm length with a 3 μm poling period and a close to 50 % duty cycle. We compare two poling electrode design approaches to fabricate long, continuous poled areas. The first approach involves the poling of a single, continuous 70 mm long electrode. The second utilize a segmented approach including the poling of more than 20 individual sections forming together a 70 mm long poling area with no stitching errors. While the continuous electrode allows for faster fabrication, the segmented approach allows to individually optimize the poling resulting in less duty cycle variation. A detailed analysis of the periodic poling results reveals that the results of both are consistent with previously reported poling outcomes for shorter devices. Thus, we demonstrate wafer-scale periodic poling exceeding chiplet-size without any loss in the periodic poling quality. Our work presents a key step towards highly-efficient, narrow-bandwidth and low-pump power nonlinear optical devices.","lang":"eng"}],"publication":"Nanophotonics","type":"journal_article","department":[{"_id":"15"},{"_id":"288"},{"_id":"623"}],"date_created":"2025-12-01T08:45:07Z"},{"ipn":"US20250116889A1","date_updated":"2026-01-08T13:23:44Z","author":[{"id":"112030","full_name":"Güsken, Nicholas Alexander","orcid":"0000-0002-4816-0666","first_name":"Nicholas Alexander","last_name":"Güsken"}],"title":"Optical modulator and electronic apparatus including the same","status":"public","year":"2025","user_id":"112030","publication_date":"2025/04/^0","_id":"63051","ipc":"US20250116889A1","citation":{"apa":"Güsken, N. A. (2025). Optical modulator and electronic apparatus including the same.","ieee":"N. A. Güsken, “Optical modulator and electronic apparatus including the same.” 2025.","short":"N.A. Güsken, (2025).","chicago":"Güsken, Nicholas Alexander. “Optical Modulator and Electronic Apparatus Including the Same,” 2025.","mla":"Güsken, Nicholas Alexander. Optical Modulator and Electronic Apparatus Including the Same. 2025.","ama":"Güsken NA. Optical modulator and electronic apparatus including the same. Published online 2025.","bibtex":"@article{Güsken_2025, title={Optical modulator and electronic apparatus including the same}, author={Güsken, Nicholas Alexander}, year={2025} }"},"department":[{"_id":"623"},{"_id":"15"},{"_id":"230"}],"type":"patent","date_created":"2025-12-11T20:45:34Z"},{"citation":{"mla":"Bianchi, Luca, et al. “Unified Boson Sampling.” Physical Review Research, vol. 7, no. 4, L042068, American Physical Society (APS), 2025, doi:10.1103/8hy1-m5gg.","ama":"Bianchi L, Marconi C, Ares L, Bacco D, Sperling J. Unified boson sampling. Physical Review Research. 2025;7(4). doi:10.1103/8hy1-m5gg","bibtex":"@article{Bianchi_Marconi_Ares_Bacco_Sperling_2025, title={Unified boson sampling}, volume={7}, DOI={10.1103/8hy1-m5gg}, number={4L042068}, journal={Physical Review Research}, publisher={American Physical Society (APS)}, author={Bianchi, Luca and Marconi, Carlo and Ares, Laura and Bacco, Davide and Sperling, Jan}, year={2025} }","apa":"Bianchi, L., Marconi, C., Ares, L., Bacco, D., & Sperling, J. (2025). Unified boson sampling. Physical Review Research, 7(4), Article L042068. https://doi.org/10.1103/8hy1-m5gg","ieee":"L. Bianchi, C. Marconi, L. Ares, D. Bacco, and J. Sperling, “Unified boson sampling,” Physical Review Research, vol. 7, no. 4, Art. no. L042068, 2025, doi: 10.1103/8hy1-m5gg.","chicago":"Bianchi, Luca, Carlo Marconi, Laura Ares, Davide Bacco, and Jan Sperling. “Unified Boson Sampling.” Physical Review Research 7, no. 4 (2025). https://doi.org/10.1103/8hy1-m5gg.","short":"L. Bianchi, C. Marconi, L. Ares, D. Bacco, J. Sperling, Physical Review Research 7 (2025)."},"status":"public","publisher":"American Physical Society (APS)","_id":"63534","volume":7,"user_id":"75127","publication":"Physical Review Research","issue":"4","abstract":[{"lang":"eng","text":"Boson sampling is a key candidate for demonstrating quantum advantage and has already yielded significant advances in quantum simulation, machine learning, and graph theory. In this work, a unification and extension of distinct forms of boson sampling is developed. The devised protocol merges discrete-variable scattershot boson sampling with continuous-variable Gaussian boson sampling. Therefore, it is rendered possible to harness the complexity of more interesting states, such as squeezed photons, in advanced sampling protocols. A generating function formalism is developed for the joint description of multiphoton and multimode light undergoing Gaussian transformations. The resulting analytical tools enable one to explore interfaces of different photonic quantum-information-processing platforms. A numerical simulation of unified sampling is carried out, benchmarking its performance, complexity, and scalability. Entanglement is characterized to exemplify the generation of quantum correlations from the nonlinear interactions of a unified sampler."}],"date_created":"2026-01-09T08:02:57Z","department":[{"_id":"623"},{"_id":"15"},{"_id":"170"},{"_id":"706"},{"_id":"429"}],"type":"journal_article","publication_identifier":{"issn":["2643-1564"]},"author":[{"last_name":"Bianchi","first_name":"Luca","full_name":"Bianchi, Luca"},{"first_name":"Carlo","last_name":"Marconi","full_name":"Marconi, Carlo"},{"last_name":"Ares","first_name":"Laura","full_name":"Ares, Laura"},{"first_name":"Davide","last_name":"Bacco","full_name":"Bacco, Davide"},{"id":"75127","full_name":"Sperling, Jan","last_name":"Sperling","first_name":"Jan","orcid":"0000-0002-5844-3205"}],"title":"Unified boson sampling","year":"2025","intvolume":" 7","publication_status":"published","date_updated":"2026-01-09T08:03:38Z","language":[{"iso":"eng"}],"article_number":"L042068","doi":"10.1103/8hy1-m5gg"}]