Berlin 2018 – scientific programme

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HL: Fachverband Halbleiterphysik

HL 12: Invited Talk: Mark Holmes

HL 12.1: Invited Talk

Monday, March 12, 2018, 16:45–17:15, EW 201

III-Nitride Quantum Dots as Single Photon Emitters — •Mark Holmes^1,2, Kang Gao¹, Florian Le Roux¹, Kihyun Choi², Satoshi Kako^1,2, Munetaka Arita^1,2, and Yasuhiko Arakawa^1,2 — ¹Institute of Industrial Science, The University of Tokyo — ²Institute for Nano Quantum Information Electronics, The University of Tokyo

III-nitride quantum dots are becoming increasingly interesting and important for the generation of single photons of light. They provide strong quantum confinement to enable operation at elevated temperatures, and also a wide range of band gaps over which the emission energy can be tuned (in theory from the UV all the way to the IR). In this presentation I will discuss our recent work at The University of Tokyo on realizing single photon emission from III-nitride quantum dots. In particular, I will discuss our efforts to realize high temperature operation from GaN/AlGaN nanowire based structures, and also high purity emission from interface fluctuation GaN/AlGaN quantum dots. Recently, with the aim of generating indistinguishable photons, we have been making measurements on the spectral diffusion time scales in such structures, which I will discuss in detail.