Boost of single-photon emission by perfect coupling of InAs/GaAs quantum dot and micropillar cavity mode

We proposed a precise calibration process of Al (0.9)Ga(0.1)As/GaAs DBR micropillar cavity to match the single InAs/GaAs quantum dot (QD) exciton emission and achieve cavity mode resonance and a great enhancement of QD photoluminescence (PL) intensity. Light-matter interaction of single QD in DBR mi...

Descripción completa

Detalles Bibliográficos
Autores principales: Li, Shulun, Chen, Yao, Shang, Xiangjun, Yu, Ying, Yang, Jiawei, Huang, Junhui, Su, Xiangbin, Shen, Jiaxin, Sun, Baoquan, Ni, Haiqiao, Su, Xingliang, Wang, Kaiyou, Niu, Zhichuan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer US 2020
Materias:
Nano Express
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7347735/
https://www.ncbi.nlm.nih.gov/pubmed/32648067
http://dx.doi.org/10.1186/s11671-020-03358-1
Descripción
Sumario:We proposed a precise calibration process of Al (0.9)Ga(0.1)As/GaAs DBR micropillar cavity to match the single InAs/GaAs quantum dot (QD) exciton emission and achieve cavity mode resonance and a great enhancement of QD photoluminescence (PL) intensity. Light-matter interaction of single QD in DBR micropillar cavity (Q ∼ 3800) under weak coupling regime was investigated by temperature-tuned PL spectra; a pronounced enhancement (14.6-fold) of QD exciton emission was observed on resonance. The second-order autocorrelation measurement shows g((2))(0)=0.070, and the estimated net count rate before the first objective lens reaches 1.6×10(7) counts/s under continuous wave excitation, indicating highly pure single-photon emission at high count rates.

Ejemplares similares