%0 Journal Article %1 Harder_2021 %A Harder, Tristan H. %A Sun, Meng %A Egorov, Oleg A. %A Vakulchyk, Ihor %A Beierlein, Johannes %A Gagel, Philipp %A Emmerling, Monika %A Schneider, Christian %A Peschel, Ulf %A Savenko, Ivan G. %A Klembt, Sebastian %A Höfling, Sven %D 2021 %I American Chemical Society (ACS) %J ACS Photonics %K c %N 5 %P 1377-1384 %R 10.1021/acsphotonics.0c01958 %T Coherent topological polariton laser %U https://doi.org/10.1021%2Facsphotonics.0c01958 %V 8 %X Topological concepts have been applied to a wide range of fields in order to successfully describe the emergence of robust edge modes that are unaffected by scattering or disorder. In photonics, indications of lasing from topologically protected modes with improved overall laser characteristics were observed. Here, we study exciton-polariton microcavity traps that are arranged in a one-dimensional Su–Schrieffer–Heeger lattice and form a topological defect mode from which we unequivocally observe highly coherent polariton lasing. Additionally, we confirm the excitonic contribution to the polariton lasing by applying an external magnetic field. These systematic experimental findings of robust lasing and high temporal coherence are meticulously reproduced by a combination of a generalized Gross–Pitaevskii model and a Lindblad master equation model. Thus, by using the comparatively simple SSH geometry, we are able to describe and control the exciton-polariton topological lasing, allowing for a deeper understanding of topological effects on microlasers.

@article{Harder_2021, abstract = {Topological concepts have been applied to a wide range of fields in order to successfully describe the emergence of robust edge modes that are unaffected by scattering or disorder. In photonics, indications of lasing from topologically protected modes with improved overall laser characteristics were observed. Here, we study exciton-polariton microcavity traps that are arranged in a one-dimensional Su–Schrieffer–Heeger lattice and form a topological defect mode from which we unequivocally observe highly coherent polariton lasing. Additionally, we confirm the excitonic contribution to the polariton lasing by applying an external magnetic field. These systematic experimental findings of robust lasing and high temporal coherence are meticulously reproduced by a combination of a generalized Gross–Pitaevskii model and a Lindblad master equation model. Thus, by using the comparatively simple SSH geometry, we are able to describe and control the exciton-polariton topological lasing, allowing for a deeper understanding of topological effects on microlasers.}, added-at = {2021-05-12T12:09:18.000+0200}, author = {Harder, Tristan H. and Sun, Meng and Egorov, Oleg A. and Vakulchyk, Ihor and Beierlein, Johannes and Gagel, Philipp and Emmerling, Monika and Schneider, Christian and Peschel, Ulf and Savenko, Ivan G. and Klembt, Sebastian and Höfling, Sven}, biburl = {https://www.bibsonomy.org/bibtex/2c72cc96c722aa93781d42c87432f3285/ctqmat}, day = 13, description = {Coherent Topological Polariton Laser | ACS Photonics}, doi = {10.1021/acsphotonics.0c01958}, interhash = {47f2b275d990fbb749d82ee2b7f505d1}, intrahash = {c72cc96c722aa93781d42c87432f3285}, journal = {ACS Photonics}, keywords = {c}, month = {04}, number = 5, pages = {1377-1384}, publisher = {American Chemical Society ({ACS})}, timestamp = {2023-10-19T10:16:24.000+0200}, title = {Coherent topological polariton laser}, url = {https://doi.org/10.1021%2Facsphotonics.0c01958}, volume = 8, year = 2021 }