Topological phase transition in an all-optical exciton-polariton lattice
Topological insulators are a class of electronic materials exhibiting robust edge states immune to perturbations and disorder. This concept has been successfully adapted in photonics, where topologically nontrivial waveguides and topological laserswere developed.However, the exploration of topologic...
| Main Authors: | , , , , , , , , , , |
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| Format: | Journal Article |
| Language: | English |
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2022
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| Online Access: | https://hdl.handle.net/10356/159839 |
| _version_ | 1811687103965167616 |
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| author | Pieczarka, Maciej Estrecho, Eliezer Ghosh, Sanjib Wurdack, Matthias Steger, Mark Snoke, David W. West, Kenneth Pfeiffer, Loren N. Liew, Timothy Chi Hin Truscott, Andrew G. Ostrovskaya, Elena A. |
| author2 | School of Physical and Mathematical Sciences |
| author_facet | School of Physical and Mathematical Sciences Pieczarka, Maciej Estrecho, Eliezer Ghosh, Sanjib Wurdack, Matthias Steger, Mark Snoke, David W. West, Kenneth Pfeiffer, Loren N. Liew, Timothy Chi Hin Truscott, Andrew G. Ostrovskaya, Elena A. |
| author_sort | Pieczarka, Maciej |
| collection | NTU |
| description | Topological insulators are a class of electronic materials exhibiting robust edge states immune to perturbations and disorder. This concept has been successfully adapted in photonics, where topologically nontrivial waveguides and topological laserswere developed.However, the exploration of topological properties in a given photonic system is limited to a fabricated sample, without the flexibility to reconfigure the structure in situ.Here, we demonstrate an all-optical realization of the orbital Su-Schrieffer-Heeger model in a microcavity exciton-polariton system, whereby a cavity photon is hybridized with an exciton in a GaAs quantum well.We induce a zigzag potential for exciton polaritons all-optically by shaping the nonresonant laser excitation, and measure directly the eigenspectrum and topological edge states of a polariton lattice in a nonlinear regime of bosonic condensation. Furthermore, taking advantage of the tunability of the optically induced lattice, we modify the intersite tunneling to realize a topological phase transition to a trivial state.Our results open the way to study topological phase transitions on-demand in fully reconfigurable hybrid photonic systems that do not require sophisticated sample engineering. |
| first_indexed | 2024-10-01T05:11:00Z |
| format | Journal Article |
| id | ntu-10356/159839 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:11:00Z |
| publishDate | 2022 |
| record_format | dspace |
| spelling | ntu-10356/1598392023-02-28T20:04:02Z Topological phase transition in an all-optical exciton-polariton lattice Pieczarka, Maciej Estrecho, Eliezer Ghosh, Sanjib Wurdack, Matthias Steger, Mark Snoke, David W. West, Kenneth Pfeiffer, Loren N. Liew, Timothy Chi Hin Truscott, Andrew G. Ostrovskaya, Elena A. School of Physical and Mathematical Sciences Science::Physics Condensation States Topological insulators are a class of electronic materials exhibiting robust edge states immune to perturbations and disorder. This concept has been successfully adapted in photonics, where topologically nontrivial waveguides and topological laserswere developed.However, the exploration of topological properties in a given photonic system is limited to a fabricated sample, without the flexibility to reconfigure the structure in situ.Here, we demonstrate an all-optical realization of the orbital Su-Schrieffer-Heeger model in a microcavity exciton-polariton system, whereby a cavity photon is hybridized with an exciton in a GaAs quantum well.We induce a zigzag potential for exciton polaritons all-optically by shaping the nonresonant laser excitation, and measure directly the eigenspectrum and topological edge states of a polariton lattice in a nonlinear regime of bosonic condensation. Furthermore, taking advantage of the tunability of the optically induced lattice, we modify the intersite tunneling to realize a topological phase transition to a trivial state.Our results open the way to study topological phase transitions on-demand in fully reconfigurable hybrid photonic systems that do not require sophisticated sample engineering. Ministry of Education (MOE) Published version Australian Research Council (CE170100039); Ministry of Education–Singapore (MOE2018-T3-1-002, MOE2019-T2-1-004); Narodowe Centrum Nauki (2018/30/E/ST7/00648); Fundacja na rzecz Nauki Polskiej (START); National Science Foundation (DMR-2004570). 2022-07-04T06:22:20Z 2022-07-04T06:22:20Z 2021 Journal Article Pieczarka, M., Estrecho, E., Ghosh, S., Wurdack, M., Steger, M., Snoke, D. W., West, K., Pfeiffer, L. N., Liew, T. C. H., Truscott, A. G. & Ostrovskaya, E. A. (2021). Topological phase transition in an all-optical exciton-polariton lattice. Optica, 8(8), 1084-1091. https://dx.doi.org/10.1364/OPTICA.426996 2334-2536 https://hdl.handle.net/10356/159839 10.1364/OPTICA.426996 2-s2.0-85108584726 8 8 1084 1091 en MOE2018-T3-1-002 MOE2019-T2-1-004 Optica © 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement. application/pdf |
| spellingShingle | Science::Physics Condensation States Pieczarka, Maciej Estrecho, Eliezer Ghosh, Sanjib Wurdack, Matthias Steger, Mark Snoke, David W. West, Kenneth Pfeiffer, Loren N. Liew, Timothy Chi Hin Truscott, Andrew G. Ostrovskaya, Elena A. Topological phase transition in an all-optical exciton-polariton lattice |
| title | Topological phase transition in an all-optical exciton-polariton lattice |
| title_full | Topological phase transition in an all-optical exciton-polariton lattice |
| title_fullStr | Topological phase transition in an all-optical exciton-polariton lattice |
| title_full_unstemmed | Topological phase transition in an all-optical exciton-polariton lattice |
| title_short | Topological phase transition in an all-optical exciton-polariton lattice |
| title_sort | topological phase transition in an all optical exciton polariton lattice |
| topic | Science::Physics Condensation States |
| url | https://hdl.handle.net/10356/159839 |
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