Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Nonlinear Terahertz Electroluminescence from Dirac-Landau Polaritons. / Benhamou-Bui, B.; Consejo, C.; Krishtopenko, S. S. и др.
в: Physical Review Letters, Том 136, № 9, 096902, 02.03.2026.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
}
TY - JOUR
T1 - Nonlinear Terahertz Electroluminescence from Dirac-Landau Polaritons
AU - Benhamou-Bui, B.
AU - Consejo, C.
AU - Krishtopenko, S. S.
AU - Ruffenach, S.
AU - Bray, C.
AU - Torres, J.
AU - Dzian, J.
AU - Le Mardelé, F.
AU - Pagot, A.
AU - Baudry, X.
AU - Morozov, S. V.
AU - Mikhailov, N. N.
AU - Dvoretskii, S. A.
AU - Jouault, B.
AU - Ballet, P.
AU - Orlita, M.
AU - Ciuti, C.
AU - Teppe, F.
N1 - This work was supported by the Terahertz Occitanie Platform, the French Agence Nationale pour la Recherche (TEASER, ANR-24-CE24-4830), the France 2030 program via Equipex + HYBAT (ANR-21-ESRE-0026), the CNRS (Tremplin 2024 STEP), and the Russian Science Foundation (Project No. 24-62-00010). We thank E. Chauveau and A. Meguekam for help with substrate thinning and J. Mangeney, T. Guillet, and J. Faist for discussions. We also thank B. Mongellaz, P. Lefebvre, and I. Philip for support with helium recovery. Finally, F. T. thanks C. Gimat for longstanding support.
PY - 2026/3/2
Y1 - 2026/3/2
N2 - We report Dirac-Landau polaritons observed by terahertz (THz) magnetoreflectivity spectroscopy, demonstrating strong coupling between cyclotron transitions of two-dimensional 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.
AB - We report Dirac-Landau polaritons observed by terahertz (THz) magnetoreflectivity spectroscopy, demonstrating strong coupling between cyclotron transitions of two-dimensional 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.
KW - Dirac fermions
KW - Electroluminescence
KW - Landau levels
KW - Polaritons
KW - Dirac semimetal
KW - Cavity resonators
KW - Terahertz spectroscopy
UR - https://www.scopus.com/pages/publications/105031788406
UR - https://www.mendeley.com/catalogue/6660da79-f979-35ba-a975-bf162e6565a4/
U2 - 10.1103/7rcf-fd3g
DO - 10.1103/7rcf-fd3g
M3 - Article
C2 - 41861332
VL - 136
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 9
M1 - 096902
ER -
ID: 81331038