Journal Article Highly efficient coupling of nanolight emitters to a ultra-wide tunable nanofibre cavity.

Schell, Andreas W  ,  Takashima, Hideaki  ,  Kamioka, Shunya  ,  Oe, Yasuko  ,  Fujiwara, Masazumi  ,  Benson, Oliver  ,  Takeuchi, Shigeki

52015-05-06 , Nature Publishing Group
蜘蛛の糸の十分の1の細さのガラス糸を用いた、光を効率良く吸い取るナノデバイスを実現 -量子情報通信への応用に期待-. 京都大学プレスリリース. 2015-05-20.
Solid-state microcavities combining ultra-small mode volume, wide-range resonance frequency tuning, as well as lossless coupling to a single mode fibre are integral tools for nanophotonics and quantum networks. We developed an integrated system providing all of these three indispensable properties. It consists of a nanofibre Bragg cavity (NFBC) with the mode volume of under 1 μm(3) and repeatable tuning capability over more than 20 nm at visible wavelengths. In order to demonstrate quantum light-matter interaction, we establish coupling of quantum dots to our tunable NFBC and achieve an emission enhancement by a factor of 2.7.

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