Abstract
We report the design of a solid-state, micron-sized hemispherical cavity that yields significantly enhanced extraction efficiency with modest Purcell enhancement from embedded quantum emitters. A simple analytical model provides a guideline for the design and optimization of the structure, while finite-difference time-domain simulations are used for full analysis of the optimum structure. Cavity modes with up to 90% extraction efficiency, a Purcell enhancement factor , and a quality factor of are achieved. In addition, Gaussian-like far-field beam profiles with low divergence are exhibited for several modes. These monolithic cavities are promising for solid-state emitters buried in a high dielectric environment, such as self-assembled quantum dots and optically active defects in diamond.
© 2015 Optical Society of America
Full Article | PDF ArticleMore Like This
Wenbo Lin, Yasutomo Ota, Satoshi Iwamoto, and Yasuhiko Arakawa
Opt. Lett. 44(15) 3749-3752 (2019)
Wenfang Li, Jinjin Du, and Síle Nic Chormaic
Opt. Lett. 43(8) 1674-1677 (2018)
Hiroyuki Kurosawa, Hidekazu Kumano, and Ikuo Suemune
Opt. Lett. 40(24) 5766-5769 (2015)