Title :
Design and simulation of a dielectric planar antenna for semiconductor quantum dot single photon sources
Author :
Ma, Yong ; Kremer, Peter E. ; Gerardot, Brian D.
Author_Institution :
Inst. of Photonics & Quantum Sci., Heriot-Watt Univ., Edinburgh, UK
Abstract :
We present the design and simulation of a dielectric planar antenna for semiconductor quantum dot single photon sources. Using both Finite-Difference Time Domain (FDTD) and analytical modelling, we investigate the influence of the geometric parameters of the planar antenna on the far field distribution and collection efficiency of the quantum dot emission. FDTD simulation results show good agreement with analytical modelling results. A maximum collection efficiency of 27% for an optical system with a numerical aperture of 0.75 is obtained by optimizing the geometric parameters of the planar antenna structure. The results suggest the use of the planar antenna to produce highly directional radiation coupling and improved collection efficiency with the advantage of straightforward fabrication.
Keywords :
antenna radiation patterns; finite difference time-domain analysis; planar antennas; semiconductor quantum dots; analytical modelling; dielectric planar antenna; far field distribution; finite-difference time domain modelling; geometric parameters; highly directional radiation coupling; optical system; quantum dot emission; semiconductor quantum dot; single photon sources; Analytical models; Computational modeling; Gallium arsenide; Instruction sets; Numerical models; Photonics; System-on-a-chip; FDTD; Quantum dots; dielectric planar antenna; single photon sources;
Conference_Titel :
Nanotechnology (IEEE-NANO), 2012 12th IEEE Conference on
Conference_Location :
Birmingham
Print_ISBN :
978-1-4673-2198-3
DOI :
10.1109/NANO.2012.6322093
