[{"language":[{"iso":"eng"}],"article_number":"e01874","department":[{"_id":"15"},{"_id":"170"},{"_id":"297"},{"_id":"705"},{"_id":"35"},{"_id":"230"}],"user_id":"16199","_id":"62867","status":"public","abstract":[{"text":"<jats:title>ABSTRACT</jats:title>\r\n                  <jats:p>Effective manipulation of photonic spin–orbit coupling (SOC) in microcavities is of fundamental importance within topological photonics and applications. Anisotropic organic single‐crystalline materials can induce abundant SOC phenomenon due to their flexible tunability of molecular geometries, however, the intrinsic relationship between molecular geometries/orientations in 3D space and photonic SOC is lacking. In this study, we design two kinds of 2D organic polymorphs for the construction of organic microcavities to investigate the structure‐performance relationships. In two polymorphic microcavities, two distinctive photonic SOC phenomena are observed regardless of the in‐plane anisotropy of organic polymorphs. Theoretical analysis indicates that the photonic SOC strength is strongly influenced by the synergies between the crystal anisotropy and the tilted collective molecular transition dipole moment. Our results uncover the correlation mechanism between the structure of molecules and photonic SOC and open an avenue to engineer complex photonic SOC by use of organic microstructures towards the development of diverse integrated photonic devices.</jats:p>","lang":"eng"}],"publication":"Laser &amp; Photonics Reviews","type":"journal_article","doi":"10.1002/lpor.202501874","title":"Molecular Orientation‐Dependent Photonic Spin–Orbit Coupling in Organic Microcavities Filled with 2D Polymorphic Crystals","date_created":"2025-12-04T12:33:48Z","author":[{"first_name":"Ying","full_name":"Ji, Ying","last_name":"Ji"},{"first_name":"Xuekai","id":"59416","full_name":"Ma, Xuekai","last_name":"Ma"},{"full_name":"Huang, Han","last_name":"Huang","first_name":"Han"},{"first_name":"Yibo","full_name":"Deng, Yibo","last_name":"Deng"},{"first_name":"Pingyang","full_name":"Wang, Pingyang","last_name":"Wang"},{"last_name":"Long","full_name":"Long, Teng","first_name":"Teng"},{"first_name":"Yuan","last_name":"Li","full_name":"Li, Yuan"},{"first_name":"Ruiyang","full_name":"Zhao, Ruiyang","last_name":"Zhao"},{"last_name":"Li","full_name":"Li, Yunfei","first_name":"Yunfei"},{"first_name":"Cunbin","last_name":"An","full_name":"An, Cunbin"},{"orcid":"0000-0003-4042-4951","last_name":"Schumacher","id":"27271","full_name":"Schumacher, Stefan","first_name":"Stefan"},{"first_name":"Chunling","full_name":"Gu, Chunling","last_name":"Gu"},{"first_name":"Bo","full_name":"Liao, Bo","last_name":"Liao"},{"first_name":"Hongbing","full_name":"Fu, Hongbing","last_name":"Fu"},{"last_name":"Liao","full_name":"Liao, Qing","first_name":"Qing"}],"date_updated":"2025-12-04T12:34:45Z","publisher":"Wiley","citation":{"ieee":"Y. Ji <i>et al.</i>, “Molecular Orientation‐Dependent Photonic Spin–Orbit Coupling in Organic Microcavities Filled with 2D Polymorphic Crystals,” <i>Laser &#38;amp; Photonics Reviews</i>, Art. no. e01874, 2025, doi: <a href=\"https://doi.org/10.1002/lpor.202501874\">10.1002/lpor.202501874</a>.","chicago":"Ji, Ying, Xuekai Ma, Han Huang, Yibo Deng, Pingyang Wang, Teng Long, Yuan Li, et al. “Molecular Orientation‐Dependent Photonic Spin–Orbit Coupling in Organic Microcavities Filled with 2D Polymorphic Crystals.” <i>Laser &#38;amp; Photonics Reviews</i>, 2025. <a href=\"https://doi.org/10.1002/lpor.202501874\">https://doi.org/10.1002/lpor.202501874</a>.","ama":"Ji Y, Ma X, Huang H, et al. Molecular Orientation‐Dependent Photonic Spin–Orbit Coupling in Organic Microcavities Filled with 2D Polymorphic Crystals. <i>Laser &#38;amp; Photonics Reviews</i>. Published online 2025. doi:<a href=\"https://doi.org/10.1002/lpor.202501874\">10.1002/lpor.202501874</a>","apa":"Ji, Y., Ma, X., Huang, H., Deng, Y., Wang, P., Long, T., Li, Y., Zhao, R., Li, Y., An, C., Schumacher, S., Gu, C., Liao, B., Fu, H., &#38; Liao, Q. (2025). Molecular Orientation‐Dependent Photonic Spin–Orbit Coupling in Organic Microcavities Filled with 2D Polymorphic Crystals. <i>Laser &#38;amp; Photonics Reviews</i>, Article e01874. <a href=\"https://doi.org/10.1002/lpor.202501874\">https://doi.org/10.1002/lpor.202501874</a>","bibtex":"@article{Ji_Ma_Huang_Deng_Wang_Long_Li_Zhao_Li_An_et al._2025, title={Molecular Orientation‐Dependent Photonic Spin–Orbit Coupling in Organic Microcavities Filled with 2D Polymorphic Crystals}, DOI={<a href=\"https://doi.org/10.1002/lpor.202501874\">10.1002/lpor.202501874</a>}, number={e01874}, journal={Laser &#38;amp; Photonics Reviews}, publisher={Wiley}, author={Ji, Ying and Ma, Xuekai and Huang, Han and Deng, Yibo and Wang, Pingyang and Long, Teng and Li, Yuan and Zhao, Ruiyang and Li, Yunfei and An, Cunbin and et al.}, year={2025} }","mla":"Ji, Ying, et al. “Molecular Orientation‐Dependent Photonic Spin–Orbit Coupling in Organic Microcavities Filled with 2D Polymorphic Crystals.” <i>Laser &#38;amp; Photonics Reviews</i>, e01874, Wiley, 2025, doi:<a href=\"https://doi.org/10.1002/lpor.202501874\">10.1002/lpor.202501874</a>.","short":"Y. Ji, X. Ma, H. Huang, Y. Deng, P. Wang, T. Long, Y. Li, R. Zhao, Y. Li, C. An, S. Schumacher, C. Gu, B. Liao, H. Fu, Q. Liao, Laser &#38;amp; Photonics Reviews (2025)."},"year":"2025","publication_identifier":{"issn":["1863-8880","1863-8899"]},"publication_status":"published"},{"title":"Nonlinear Dielectric Nanoresonators and Metasurfaces: Toward Efficient Generation of Entangled Photons","doi":"10.1002/lpor.202200408","publisher":"Wiley","date_updated":"2025-12-16T11:26:28Z","date_created":"2023-01-30T18:24:45Z","author":[{"first_name":"Polina R.","id":"60286","full_name":"Sharapova, Polina R.","last_name":"Sharapova"},{"last_name":"Kruk","full_name":"Kruk, Sergey S.","first_name":"Sergey S."},{"last_name":"Solntsev","full_name":"Solntsev, Alexander S.","first_name":"Alexander S."}],"year":"2023","citation":{"chicago":"Sharapova, Polina R., Sergey S. Kruk, and Alexander S. Solntsev. “Nonlinear Dielectric Nanoresonators and Metasurfaces: Toward Efficient Generation of Entangled Photons.” <i>Laser &#38;amp; Photonics Reviews</i>, 2023. <a href=\"https://doi.org/10.1002/lpor.202200408\">https://doi.org/10.1002/lpor.202200408</a>.","ieee":"P. R. Sharapova, S. S. Kruk, and A. S. Solntsev, “Nonlinear Dielectric Nanoresonators and Metasurfaces: Toward Efficient Generation of Entangled Photons,” <i>Laser &#38;amp; Photonics Reviews</i>, Art. no. 2200408, 2023, doi: <a href=\"https://doi.org/10.1002/lpor.202200408\">10.1002/lpor.202200408</a>.","ama":"Sharapova PR, Kruk SS, Solntsev AS. Nonlinear Dielectric Nanoresonators and Metasurfaces: Toward Efficient Generation of Entangled Photons. <i>Laser &#38;amp; Photonics Reviews</i>. Published online 2023. doi:<a href=\"https://doi.org/10.1002/lpor.202200408\">10.1002/lpor.202200408</a>","apa":"Sharapova, P. R., Kruk, S. S., &#38; Solntsev, A. S. (2023). Nonlinear Dielectric Nanoresonators and Metasurfaces: Toward Efficient Generation of Entangled Photons. <i>Laser &#38;amp; Photonics Reviews</i>, Article 2200408. <a href=\"https://doi.org/10.1002/lpor.202200408\">https://doi.org/10.1002/lpor.202200408</a>","short":"P.R. Sharapova, S.S. Kruk, A.S. Solntsev, Laser &#38;amp; Photonics Reviews (2023).","bibtex":"@article{Sharapova_Kruk_Solntsev_2023, title={Nonlinear Dielectric Nanoresonators and Metasurfaces: Toward Efficient Generation of Entangled Photons}, DOI={<a href=\"https://doi.org/10.1002/lpor.202200408\">10.1002/lpor.202200408</a>}, number={2200408}, journal={Laser &#38;amp; Photonics Reviews}, publisher={Wiley}, author={Sharapova, Polina R. and Kruk, Sergey S. and Solntsev, Alexander S.}, year={2023} }","mla":"Sharapova, Polina R., et al. “Nonlinear Dielectric Nanoresonators and Metasurfaces: Toward Efficient Generation of Entangled Photons.” <i>Laser &#38;amp; Photonics Reviews</i>, 2200408, Wiley, 2023, doi:<a href=\"https://doi.org/10.1002/lpor.202200408\">10.1002/lpor.202200408</a>."},"publication_identifier":{"issn":["1863-8880","1863-8899"]},"publication_status":"published","keyword":["Condensed Matter Physics","Atomic and Molecular Physics","and Optics","Electronic","Optical and Magnetic Materials"],"article_number":"2200408","language":[{"iso":"eng"}],"_id":"41035","department":[{"_id":"15"},{"_id":"170"},{"_id":"230"},{"_id":"569"},{"_id":"429"},{"_id":"35"}],"user_id":"16199","status":"public","publication":"Laser &amp; Photonics Reviews","type":"journal_article"},{"type":"journal_article","publication":"Laser & Photonics Reviews","status":"public","user_id":"59416","_id":"30966","language":[{"iso":"eng"}],"article_number":"2100252","issue":"1","publication_status":"published","publication_identifier":{"issn":["1863-8880","1863-8899"]},"citation":{"ieee":"J. Ren, Q. Liao, X. Ma, S. Schumacher, J. Yao, and H. Fu, “Realization of Exciton‐Mediated Optical Spin‐Orbit Interaction in Organic Microcrystalline Resonators,” <i>Laser &#38; Photonics Reviews</i>, vol. 16, no. 1, Art. no. 2100252, 2022, doi: <a href=\"https://doi.org/10.1002/lpor.202100252\">10.1002/lpor.202100252</a>.","chicago":"Ren, Jiahuan, Qing Liao, Xuekai Ma, Stefan Schumacher, Jiannian Yao, and Hongbing Fu. “Realization of Exciton‐Mediated Optical Spin‐Orbit Interaction in Organic Microcrystalline Resonators.” <i>Laser &#38; Photonics Reviews</i> 16, no. 1 (2022). <a href=\"https://doi.org/10.1002/lpor.202100252\">https://doi.org/10.1002/lpor.202100252</a>.","ama":"Ren J, Liao Q, Ma X, Schumacher S, Yao J, Fu H. Realization of Exciton‐Mediated Optical Spin‐Orbit Interaction in Organic Microcrystalline Resonators. <i>Laser &#38; Photonics Reviews</i>. 2022;16(1). doi:<a href=\"https://doi.org/10.1002/lpor.202100252\">10.1002/lpor.202100252</a>","apa":"Ren, J., Liao, Q., Ma, X., Schumacher, S., Yao, J., &#38; Fu, H. (2022). Realization of Exciton‐Mediated Optical Spin‐Orbit Interaction in Organic Microcrystalline Resonators. <i>Laser &#38; Photonics Reviews</i>, <i>16</i>(1), Article 2100252. <a href=\"https://doi.org/10.1002/lpor.202100252\">https://doi.org/10.1002/lpor.202100252</a>","bibtex":"@article{Ren_Liao_Ma_Schumacher_Yao_Fu_2022, title={Realization of Exciton‐Mediated Optical Spin‐Orbit Interaction in Organic Microcrystalline Resonators}, volume={16}, DOI={<a href=\"https://doi.org/10.1002/lpor.202100252\">10.1002/lpor.202100252</a>}, number={12100252}, journal={Laser &#38; Photonics Reviews}, publisher={Wiley}, author={Ren, Jiahuan and Liao, Qing and Ma, Xuekai and Schumacher, Stefan and Yao, Jiannian and Fu, Hongbing}, year={2022} }","short":"J. Ren, Q. Liao, X. Ma, S. Schumacher, J. Yao, H. Fu, Laser &#38; Photonics Reviews 16 (2022).","mla":"Ren, Jiahuan, et al. “Realization of Exciton‐Mediated Optical Spin‐Orbit Interaction in Organic Microcrystalline Resonators.” <i>Laser &#38; Photonics Reviews</i>, vol. 16, no. 1, 2100252, Wiley, 2022, doi:<a href=\"https://doi.org/10.1002/lpor.202100252\">10.1002/lpor.202100252</a>."},"intvolume":"        16","year":"2022","date_created":"2022-04-27T19:51:49Z","author":[{"last_name":"Ren","full_name":"Ren, Jiahuan","first_name":"Jiahuan"},{"last_name":"Liao","full_name":"Liao, Qing","first_name":"Qing"},{"last_name":"Ma","id":"59416","full_name":"Ma, Xuekai","first_name":"Xuekai"},{"first_name":"Stefan","full_name":"Schumacher, Stefan","last_name":"Schumacher"},{"first_name":"Jiannian","last_name":"Yao","full_name":"Yao, Jiannian"},{"last_name":"Fu","full_name":"Fu, Hongbing","first_name":"Hongbing"}],"volume":16,"date_updated":"2022-06-20T12:47:25Z","publisher":"Wiley","doi":"10.1002/lpor.202100252","title":"Realization of Exciton‐Mediated Optical Spin‐Orbit Interaction in Organic Microcrystalline Resonators"},{"status":"public","abstract":[{"lang":"eng","text":"<jats:title>Abstract</jats:title><jats:p>Spin‐controlled lasers are highly interesting photonic devices and have been shown to provide ultrafast polarization dynamics in excess of 200 GHz. In contrast to conventional semiconductor lasers their temporal properties are not limited by the intensity dynamics, but are governed primarily by the interaction of the spin dynamics with the birefringent mode splitting that determines the polarization oscillation frequency. Another class of modern semiconductor lasers are high‐<jats:italic>β</jats:italic> emitters, which benefit from enhanced light–matter interaction due to strong mode confinement in low‐mode‐volume microcavities. In such structures, the emission properties can be tailored by the resonator geometry to realize for instance bimodal emission behavior in slightly elliptical micropillar cavities. This attractive feature is utilized to demonstrate and explore spin‐lasing effects in bimodal high‐<jats:italic>β</jats:italic> quantum dot micropillar lasers. The studied microlasers with a <jats:italic>β</jats:italic>‐factor of 4% show spin‐laser effects with experimental polarization oscillation frequencies up to 15 GHz and predicted frequencies up to about 100 GHz, which are controlled by the ellipticity of the resonator. These results reveal appealing prospects for very compact, ultrafast, and energy‐efficient spin‐lasers and can pave the way for future purely electrically injected spin‐lasers enabled by short injection path lengths.</jats:p>"}],"type":"journal_article","publication":"Laser &amp; Photonics Reviews","language":[{"iso":"eng"}],"user_id":"15911","department":[{"_id":"977"}],"_id":"59668","citation":{"chicago":"Heermeier, Niels, Tobias Heuser, Jan Große, Natalie Jung, Arsenty Kaganskiy, Markus Lindemann, Nils Christopher Gerhardt, Martin R. Hofmann, and Stephan Reitzenstein. “Spin‐Lasing in Bimodal Quantum Dot Micropillar Cavities.” <i>Laser &#38;amp; Photonics Reviews</i> 16, no. 4 (2022). <a href=\"https://doi.org/10.1002/lpor.202100585\">https://doi.org/10.1002/lpor.202100585</a>.","ieee":"N. Heermeier <i>et al.</i>, “Spin‐Lasing in Bimodal Quantum Dot Micropillar Cavities,” <i>Laser &#38;amp; Photonics Reviews</i>, vol. 16, no. 4, 2022, doi: <a href=\"https://doi.org/10.1002/lpor.202100585\">10.1002/lpor.202100585</a>.","ama":"Heermeier N, Heuser T, Große J, et al. Spin‐Lasing in Bimodal Quantum Dot Micropillar Cavities. <i>Laser &#38;amp; Photonics Reviews</i>. 2022;16(4). doi:<a href=\"https://doi.org/10.1002/lpor.202100585\">10.1002/lpor.202100585</a>","mla":"Heermeier, Niels, et al. “Spin‐Lasing in Bimodal Quantum Dot Micropillar Cavities.” <i>Laser &#38;amp; Photonics Reviews</i>, vol. 16, no. 4, Wiley, 2022, doi:<a href=\"https://doi.org/10.1002/lpor.202100585\">10.1002/lpor.202100585</a>.","bibtex":"@article{Heermeier_Heuser_Große_Jung_Kaganskiy_Lindemann_Gerhardt_Hofmann_Reitzenstein_2022, title={Spin‐Lasing in Bimodal Quantum Dot Micropillar Cavities}, volume={16}, DOI={<a href=\"https://doi.org/10.1002/lpor.202100585\">10.1002/lpor.202100585</a>}, number={4}, journal={Laser &#38;amp; Photonics Reviews}, publisher={Wiley}, author={Heermeier, Niels and Heuser, Tobias and Große, Jan and Jung, Natalie and Kaganskiy, Arsenty and Lindemann, Markus and Gerhardt, Nils Christopher and Hofmann, Martin R. and Reitzenstein, Stephan}, year={2022} }","short":"N. Heermeier, T. Heuser, J. Große, N. Jung, A. Kaganskiy, M. Lindemann, N.C. Gerhardt, M.R. Hofmann, S. Reitzenstein, Laser &#38;amp; Photonics Reviews 16 (2022).","apa":"Heermeier, N., Heuser, T., Große, J., Jung, N., Kaganskiy, A., Lindemann, M., Gerhardt, N. C., Hofmann, M. R., &#38; Reitzenstein, S. (2022). Spin‐Lasing in Bimodal Quantum Dot Micropillar Cavities. <i>Laser &#38;amp; Photonics Reviews</i>, <i>16</i>(4). <a href=\"https://doi.org/10.1002/lpor.202100585\">https://doi.org/10.1002/lpor.202100585</a>"},"intvolume":"        16","year":"2022","issue":"4","publication_status":"published","publication_identifier":{"issn":["1863-8880","1863-8899"]},"doi":"10.1002/lpor.202100585","title":"Spin‐Lasing in Bimodal Quantum Dot Micropillar Cavities","date_created":"2025-04-24T09:09:18Z","author":[{"first_name":"Niels","last_name":"Heermeier","full_name":"Heermeier, Niels"},{"last_name":"Heuser","full_name":"Heuser, Tobias","first_name":"Tobias"},{"first_name":"Jan","last_name":"Große","full_name":"Große, Jan"},{"full_name":"Jung, Natalie","last_name":"Jung","first_name":"Natalie"},{"first_name":"Arsenty","full_name":"Kaganskiy, Arsenty","last_name":"Kaganskiy"},{"first_name":"Markus","last_name":"Lindemann","full_name":"Lindemann, Markus"},{"first_name":"Nils Christopher","full_name":"Gerhardt, Nils Christopher","id":"115298","orcid":"0009-0002-5538-231X","last_name":"Gerhardt"},{"full_name":"Hofmann, Martin R.","last_name":"Hofmann","first_name":"Martin R."},{"last_name":"Reitzenstein","full_name":"Reitzenstein, Stephan","first_name":"Stephan"}],"volume":16,"publisher":"Wiley","date_updated":"2026-02-19T14:23:16Z"},{"doi":"10.1002/lpor.202100585","title":"Spin‐Lasing in Bimodal Quantum Dot Micropillar Cavities","volume":16,"author":[{"first_name":"Niels","last_name":"Heermeier","full_name":"Heermeier, Niels"},{"first_name":"Tobias","last_name":"Heuser","full_name":"Heuser, Tobias"},{"first_name":"Jan","full_name":"Große, Jan","last_name":"Große"},{"first_name":"Natalie","last_name":"Jung","full_name":"Jung, Natalie"},{"last_name":"Kaganskiy","full_name":"Kaganskiy, Arsenty","first_name":"Arsenty"},{"full_name":"Lindemann, Markus","last_name":"Lindemann","first_name":"Markus"},{"full_name":"Gerhardt, Nils C.","last_name":"Gerhardt","first_name":"Nils C."},{"first_name":"Martin R.","last_name":"Hofmann","full_name":"Hofmann, Martin R."},{"last_name":"Reitzenstein","full_name":"Reitzenstein, Stephan","first_name":"Stephan"}],"date_created":"2025-04-24T06:22:06Z","publisher":"Wiley","date_updated":"2026-02-25T09:38:52Z","intvolume":"        16","citation":{"chicago":"Heermeier, Niels, Tobias Heuser, Jan Große, Natalie Jung, Arsenty Kaganskiy, Markus Lindemann, Nils C. Gerhardt, Martin R. Hofmann, and Stephan Reitzenstein. “Spin‐Lasing in Bimodal Quantum Dot Micropillar Cavities.” <i>Laser &#38;amp; Photonics Reviews</i> 16, no. 4 (2022). <a href=\"https://doi.org/10.1002/lpor.202100585\">https://doi.org/10.1002/lpor.202100585</a>.","ieee":"N. Heermeier <i>et al.</i>, “Spin‐Lasing in Bimodal Quantum Dot Micropillar Cavities,” <i>Laser &#38;amp; Photonics Reviews</i>, vol. 16, no. 4, 2022, doi: <a href=\"https://doi.org/10.1002/lpor.202100585\">10.1002/lpor.202100585</a>.","ama":"Heermeier N, Heuser T, Große J, et al. Spin‐Lasing in Bimodal Quantum Dot Micropillar Cavities. <i>Laser &#38;amp; Photonics Reviews</i>. 2022;16(4). doi:<a href=\"https://doi.org/10.1002/lpor.202100585\">10.1002/lpor.202100585</a>","apa":"Heermeier, N., Heuser, T., Große, J., Jung, N., Kaganskiy, A., Lindemann, M., Gerhardt, N. C., Hofmann, M. R., &#38; Reitzenstein, S. (2022). Spin‐Lasing in Bimodal Quantum Dot Micropillar Cavities. <i>Laser &#38;amp; Photonics Reviews</i>, <i>16</i>(4). <a href=\"https://doi.org/10.1002/lpor.202100585\">https://doi.org/10.1002/lpor.202100585</a>","mla":"Heermeier, Niels, et al. “Spin‐Lasing in Bimodal Quantum Dot Micropillar Cavities.” <i>Laser &#38;amp; Photonics Reviews</i>, vol. 16, no. 4, Wiley, 2022, doi:<a href=\"https://doi.org/10.1002/lpor.202100585\">10.1002/lpor.202100585</a>.","bibtex":"@article{Heermeier_Heuser_Große_Jung_Kaganskiy_Lindemann_Gerhardt_Hofmann_Reitzenstein_2022, title={Spin‐Lasing in Bimodal Quantum Dot Micropillar Cavities}, volume={16}, DOI={<a href=\"https://doi.org/10.1002/lpor.202100585\">10.1002/lpor.202100585</a>}, number={4}, journal={Laser &#38;amp; Photonics Reviews}, publisher={Wiley}, author={Heermeier, Niels and Heuser, Tobias and Große, Jan and Jung, Natalie and Kaganskiy, Arsenty and Lindemann, Markus and Gerhardt, Nils C. and Hofmann, Martin R. and Reitzenstein, Stephan}, year={2022} }","short":"N. Heermeier, T. Heuser, J. Große, N. Jung, A. Kaganskiy, M. Lindemann, N.C. Gerhardt, M.R. Hofmann, S. Reitzenstein, Laser &#38;amp; Photonics Reviews 16 (2022)."},"year":"2022","issue":"4","publication_identifier":{"issn":["1863-8880","1863-8899"]},"quality_controlled":"1","publication_status":"published","language":[{"iso":"eng"}],"keyword":["bimodal micropillar cavities","cavity quantum electrodynamics","micro- lasers","quantum dots","spin-lasers"],"article_type":"original","user_id":"15911","_id":"59666","status":"public","abstract":[{"lang":"eng","text":"<jats:title>Abstract</jats:title><jats:p>Spin‐controlled lasers are highly interesting photonic devices and have been shown to provide ultrafast polarization dynamics in excess of 200 GHz. In contrast to conventional semiconductor lasers their temporal properties are not limited by the intensity dynamics, but are governed primarily by the interaction of the spin dynamics with the birefringent mode splitting that determines the polarization oscillation frequency. Another class of modern semiconductor lasers are high‐<jats:italic>β</jats:italic> emitters, which benefit from enhanced light–matter interaction due to strong mode confinement in low‐mode‐volume microcavities. In such structures, the emission properties can be tailored by the resonator geometry to realize for instance bimodal emission behavior in slightly elliptical micropillar cavities. This attractive feature is utilized to demonstrate and explore spin‐lasing effects in bimodal high‐<jats:italic>β</jats:italic> quantum dot micropillar lasers. The studied microlasers with a <jats:italic>β</jats:italic>‐factor of 4% show spin‐laser effects with experimental polarization oscillation frequencies up to 15 GHz and predicted frequencies up to about 100 GHz, which are controlled by the ellipticity of the resonator. These results reveal appealing prospects for very compact, ultrafast, and energy‐efficient spin‐lasers and can pave the way for future purely electrically injected spin‐lasers enabled by short injection path lengths.</jats:p>"}],"publication":"Laser &amp; Photonics Reviews","type":"journal_article"}]