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High-Q nanocavities in semiconductor-based three-dimensional photonic crystals

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arxiv 1809.09967 v1 pith:SROCKZXH submitted 2018-09-18 physics.optics

S. Takahashi , T. Tajiri , K. Watanabe , Y. Ota , S. Iwamoto , Y. Arakawa This is my paper · ORCID
classification physics.optics
keywords nanocavitiesphotonicthree-dimensionalcrystalsq-factorareacavitycontained
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We experimentally demonstrated high quality factors (Q-factors) of nanocavities in three-dimensional photonic crystals by increasing the in-plane area of the structure. Entire structures made of GaAs were fabricated by a micro-manipulation technique, and the nanocavities contained InAs self-assembled quantum dots that emitted near-infrared light. The obtained Q-factor was improved to 93,000, which is 2.4-times larger than that in a previous report of a three-dimensional photonic crystal nanocavity. Due to this large Q-factor, we successfully observed a lasing oscillation from this cavity mode.

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