Enhanced emission from a single quantum dot in a microdisk at a deterministic diabolical point
Year: 2021
Type: article
Abstract: We report on controllable cavity modes by controlling the backscattering by two identical scatterers. Periodic changes of the backscattering coupling between two degenerate cavity modes are observed with the changing angle between two scatterers and elucidated by a theoretical model using two-mode approximation and numerical simulations. The periodically appearing single-peak cavity modes indicate mode degeneracy at diabolical points. Interactions between single quantum dots and cavity modes are then investigated. Enhanced emission of a quantum dot with a six-fold intensity increase is obtained in a microdisk at a diabolical point. This method to control cavity modes allows large-scale integration, high reproducibility and flexible design of the size, the location, the quantity and the shape for scatterers, which can be applied for integrated photonic structures with scatterer-modified light-matter interaction.
Source: Optics Express
DOI: 10.1364/oe.419740
Authors: Jingnan Yang, Shushu Shi, Xin Xie, Shiyao Wu, Shan Xiao, Feilong Song, Jianchen Dang, Sibai Sun, Longlong Yang, Yunuan wang, Zi-Yong Ge, Bei-Bei Li, Zhanchun Zuo, Kuijuan Jin, Xiulai Xu
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,270
OpenAlex ID: W3152987683