Effect of optically induced potential on the energy of trapped exciton polaritons below the condensation threshold
Exciton-polaritons (polaritons herein) offer a unique nonlinear platform for studies of collective macroscopic quantum phenomena in a solid-state system. Shaping of polariton flow and polariton confinement via potential landscapes created by nonresonant optical pumping has gained considerable attent...
| Main Authors: | , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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American Physical Society (APS)
2020
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| Online Access: | https://hdl.handle.net/1721.1/123518 |
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| author | Pieczarka, M. Boozarjmehr, M. Estrecho, E. Yoon, Yoseob Steger, M. West, K. Pfeiffer, L. N. Nelson, Keith Adam Snoke, D. W. Truscott, A. G. Ostrovskaya, E. A. |
| author2 | Massachusetts Institute of Technology. Department of Chemistry |
| author_facet | Massachusetts Institute of Technology. Department of Chemistry Pieczarka, M. Boozarjmehr, M. Estrecho, E. Yoon, Yoseob Steger, M. West, K. Pfeiffer, L. N. Nelson, Keith Adam Snoke, D. W. Truscott, A. G. Ostrovskaya, E. A. |
| author_sort | Pieczarka, M. |
| collection | MIT |
| description | Exciton-polaritons (polaritons herein) offer a unique nonlinear platform for studies of collective macroscopic quantum phenomena in a solid-state system. Shaping of polariton flow and polariton confinement via potential landscapes created by nonresonant optical pumping has gained considerable attention due to the flexibility and control enabled by optically induced potentials. Recently, large density-dependent energy shifts (blueshifts) exhibited by optically trapped polaritons at low densities, below the bosonic condensation threshold, were interpreted as an evidence of strong polariton-polariton interactions [Y. Sun, Nat. Phys. 13, 870 (2017)10.1126/science.1074464]. In this work, we further investigate the origins of these blueshifts in optically induced circular traps and present evidence of significant blueshifts of the polariton energy due to reshaping of the optically induced potential with laser pump power. Our work demonstrates the strong influence of the effective potential formed by an optically injected excitonic reservoir on the energy blueshifts observed below and up to the polariton condensation threshold and suggests that the observed blueshifts arise due to interaction of polaritons with the excitonic reservoir, rather than due to polariton-polariton interaction. Keywords: exciton polariton; quantum fluids & solids; quantum wells; photoluminescence |
| first_indexed | 2024-09-23T11:38:00Z |
| format | Article |
| id | mit-1721.1/123518 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T11:38:00Z |
| publishDate | 2020 |
| publisher | American Physical Society (APS) |
| record_format | dspace |
| spelling | mit-1721.1/1235182022-09-27T20:55:32Z Effect of optically induced potential on the energy of trapped exciton polaritons below the condensation threshold Pieczarka, M. Boozarjmehr, M. Estrecho, E. Yoon, Yoseob Steger, M. West, K. Pfeiffer, L. N. Nelson, Keith Adam Snoke, D. W. Truscott, A. G. Ostrovskaya, E. A. Massachusetts Institute of Technology. Department of Chemistry Exciton-polaritons (polaritons herein) offer a unique nonlinear platform for studies of collective macroscopic quantum phenomena in a solid-state system. Shaping of polariton flow and polariton confinement via potential landscapes created by nonresonant optical pumping has gained considerable attention due to the flexibility and control enabled by optically induced potentials. Recently, large density-dependent energy shifts (blueshifts) exhibited by optically trapped polaritons at low densities, below the bosonic condensation threshold, were interpreted as an evidence of strong polariton-polariton interactions [Y. Sun, Nat. Phys. 13, 870 (2017)10.1126/science.1074464]. In this work, we further investigate the origins of these blueshifts in optically induced circular traps and present evidence of significant blueshifts of the polariton energy due to reshaping of the optically induced potential with laser pump power. Our work demonstrates the strong influence of the effective potential formed by an optically injected excitonic reservoir on the energy blueshifts observed below and up to the polariton condensation threshold and suggests that the observed blueshifts arise due to interaction of polaritons with the excitonic reservoir, rather than due to polariton-polariton interaction. Keywords: exciton polariton; quantum fluids & solids; quantum wells; photoluminescence 2020-01-22T15:02:01Z 2020-01-22T15:02:01Z 2019-08-05 2018-08-08 2019-12-30T19:40:08Z Article http://purl.org/eprint/type/JournalArticle 2469-9950 2469-9969 https://hdl.handle.net/1721.1/123518 Pieczarka, M. et al. "Effect of optically induced potential on the energy of trapped exciton polaritons below the condensation threshold." Physical Review B 100, 8 (August 15, 2019): 085301 © 2019 American Physical Society en http://dx.doi.org/10.1103/physrevb.100.085301 Physical Review B Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society (APS) APS |
| spellingShingle | Pieczarka, M. Boozarjmehr, M. Estrecho, E. Yoon, Yoseob Steger, M. West, K. Pfeiffer, L. N. Nelson, Keith Adam Snoke, D. W. Truscott, A. G. Ostrovskaya, E. A. Effect of optically induced potential on the energy of trapped exciton polaritons below the condensation threshold |
| title | Effect of optically induced potential on the energy of trapped exciton polaritons below the condensation threshold |
| title_full | Effect of optically induced potential on the energy of trapped exciton polaritons below the condensation threshold |
| title_fullStr | Effect of optically induced potential on the energy of trapped exciton polaritons below the condensation threshold |
| title_full_unstemmed | Effect of optically induced potential on the energy of trapped exciton polaritons below the condensation threshold |
| title_short | Effect of optically induced potential on the energy of trapped exciton polaritons below the condensation threshold |
| title_sort | effect of optically induced potential on the energy of trapped exciton polaritons below the condensation threshold |
| url | https://hdl.handle.net/1721.1/123518 |
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