Nonlinear Terahertz Electroluminescence from Dirac Landau Polaritons
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arXiv
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| Autori principali: | , , , , , , , , , , , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| author | Benhamou-Bui, B. Consejo, C. Krishtopenko, S. S. Ruffenach, S. Bray, C. Torres, J. Dzian, J. Mardelé, F. Le Pagot, A. Baudry, X. Morozov, S. V. Mikhailov, N. N. Dvoretskii, S. A. Jouault, B. Ballet, P. Orlita, M. Ciuti, C. Teppe, F. |
| author_facet | Benhamou-Bui, B. Consejo, C. Krishtopenko, S. S. Ruffenach, S. Bray, C. Torres, J. Dzian, J. Mardelé, F. Le Pagot, A. Baudry, X. Morozov, S. V. Mikhailov, N. N. Dvoretskii, S. A. Jouault, B. Ballet, P. Orlita, M. Ciuti, C. Teppe, F. |
| contents | We report Dirac Landau polaritons observed by terahertz (THz) magnetoreflectivity spectroscopy, demonstrating strong coupling between cyclotron transitions of two-dimensional (2D) Dirac fermions in HgTe quantum wells and optical cavity modes. Under pulsed electrical injection we observe efficient nonlinear electroluminescence, with a strongly out-of-equilibrium polariton distribution dominated by emission from the upper polariton branches. Model analysis of the bias-dependent emission intensity and spectral narrowing indicates a polariton occupancy per mode approaching unity, with a possible contribution from stimulated polariton emission in the spectral region of the upper anticrossing. These results open prospects toward Dirac Landau polariton condensates and low-threshold, tunable THz polariton lasers based on cyclotron emission. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2502_07897 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Nonlinear Terahertz Electroluminescence from Dirac Landau Polaritons Benhamou-Bui, B. Consejo, C. Krishtopenko, S. S. Ruffenach, S. Bray, C. Torres, J. Dzian, J. Mardelé, F. Le Pagot, A. Baudry, X. Morozov, S. V. Mikhailov, N. N. Dvoretskii, S. A. Jouault, B. Ballet, P. Orlita, M. Ciuti, C. Teppe, F. Mesoscale and Nanoscale Physics Optics Quantum Physics We report Dirac Landau polaritons observed by terahertz (THz) magnetoreflectivity spectroscopy, demonstrating strong coupling between cyclotron transitions of two-dimensional (2D) Dirac fermions in HgTe quantum wells and optical cavity modes. Under pulsed electrical injection we observe efficient nonlinear electroluminescence, with a strongly out-of-equilibrium polariton distribution dominated by emission from the upper polariton branches. Model analysis of the bias-dependent emission intensity and spectral narrowing indicates a polariton occupancy per mode approaching unity, with a possible contribution from stimulated polariton emission in the spectral region of the upper anticrossing. These results open prospects toward Dirac Landau polariton condensates and low-threshold, tunable THz polariton lasers based on cyclotron emission. |
| title | Nonlinear Terahertz Electroluminescence from Dirac Landau Polaritons |
| topic | Mesoscale and Nanoscale Physics Optics Quantum Physics |
| url | https://arxiv.org/abs/2502.07897 |