Whispering gallery mode emission of low density InP/GaInP quantum dots

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2020-12-08
Authors
Lebedev, D.
Vlasov, A.
Smirnov, V.
Breev, I.
Pelucchi, Emanuele
Gocalińska, Agnieszka M.
Juska, Gediminas
Kulagina, M.
Guseva, Y.
Troshkov, S.
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AIP Publishing
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Abstract
GaInP microdisks contained InP/GaInP quantum dots having lateral size ~150 nm and 1-5 Pm-2 were investigated with help of microphotoluminescence technique. Experiments carried out in confocal, time-resolved and low-temperature modes. Comparison of results allowed to conclude that overlap of quantum dot emission area with whispering gallery mode antinode results in faster luminescence lifetime (Purcell effect). Whispering gallery mode lasing was detected. Obtained threshold power values were following 6 μW (Q=4500, T=8.5 K) and 0.4 μW (Q=7400, T=80 K).
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Microphotoluminescence , GaInP microdisks , Quantum dot , Whispering gallery mode
Citation
Lebedev, D., Vlasov, A., Smirnov, V., Breev, I., Pelucchi, E., Gocalinska, A., Juska, G., Kulagina, M., Guseva, Y., Troshkov, S., Davydov, V., Smirnov, A. and Mintairov, A. (2020) 'Whispering gallery mode emission of low density InP/GaInP quantum dots', AIP Conference Proceedings, 2300, 020079 (4pp). doi: 10.1063/5.0032091
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© 2020, the Authors. This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared as: Lebedev, D., Vlasov, A., Smirnov, V., Breev, I., Pelucchi, E., Gocalinska, A., Juska, G., Kulagina, M., Guseva, Y., Troshkov, S., Davydov, V., Smirnov, A. and Mintairov, A. (2020) 'Whispering gallery mode emission of low density InP/GaInP quantum dots', AIP Conference Proceedings, 2300, 020079 (4pp), doi: 10.1063/5.0032091, and may be found at: https://doi.org/10.1063/5.0032091