Systematic study of thresholdless oscillation in high-β buried multiple-quantum-well photonic crystal nanocavity lasers

Optics Express
Masato TakiguchiMasaya Notomi

Abstract

Buried multiple-quantum-well (MQW) 2D photonic crystal cavities (PhC) achieve low non-radiative recombination and high carrier confinement thus making them highly efficient emitters. In this study, we have investigated the lasing characteristics of high-β(spontaneous emission coupling factor) buried MQW photonic crystal nanocavity lasers to clarify the theoretically-predicted thresholdless operation in high-β nanolasers. The strong light and carrier confinement and low non-radiative recombination in our nanolasers have enabled us to clearly demonstrate very smooth lasing transition in terms of the light-in vs light-out curve and cavity linewidth. To clarify the thresholdless lasing behavior, we carried out a lifetime measurement and a photon correlation measurement, which also confirmed the predicted behavior. In addition, we systematically investigated the dependence of β on the detuning frequency, which was in good agreement with a numerical simulation based on the finite-difference time-domain method. This is the first convincing systematic study of nanolasers based on an MQW close to the thresholdless regime.

References

Apr 12, 2006·Physical Review Letters·S StraufD Bouwmeester
Mar 16, 2007·Physical Review Letters·S M UlrichP Michler
Nov 13, 2009·Optics Express·Kirill A AtlasovEli Kapon
Feb 10, 2012·Nature·M KhajavikhanY Fainman

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Citations

Feb 10, 2018·Nature Communications·Stefan T JagschStephan Reitzenstein
Feb 26, 2019·Science Advances·Guoqiang ZhangHideki Gotoh
Dec 15, 2017·Applied Optics·Hussein Taleb, Mohammad Kazem Moravvej-Farshi
Jul 9, 2020·Light, Science & Applications·Weixuan ZhangXiulai Xu
Oct 19, 2017·Optics Express·Yasutomo OtaYasuhiko Arakawa
Feb 27, 2021·Physical Review Letters·Mark Anthony CarrollFrancesco Papoff
Apr 23, 2021·Scientific Reports·Naotomo TakemuraMasaya Notomi
Jun 30, 2021·Light, Science & Applications·Weixuan ZhangXiulai Xu

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