Title :
Single-Mode Emission From Ge Quantum Dots in Photonic Crystal Nanobeam Cavity
Author :
Yong Zhang ; Cheng Zeng ; He Zhang ; Danping Li ; Ge Gao ; Qingzhong Huang ; Yi Wang ; Jinzhong Yu ; Jinsong Xia
Author_Institution :
Sch. of Opt. & Electron. Inf., Huazhong Univ. of Sci. & Technol., Wuhan, China
Abstract :
A freestanding one-dimensional photonic crystal nanobeam cavity embedded with Ge self-assembled quantum dots is designed and fabricated on a silicon-on-insulator substrate. Only one photoluminescence peak is observed in the wavelength range of 1000 to 1600 nm at room temperature. The emission peak dominates the photoluminescence spectrum over an almost flat and weak background emission, which indicates single-mode emission is realized in the proposed light emitter.
Keywords :
elemental semiconductors; germanium; nanostructured materials; photoluminescence; photonic crystals; self-assembly; semiconductor quantum dots; silicon-on-insulator; Ge; germanium self-assembled quantum dots; one-dimensional photonic crystal nanobeam cavity; photoluminescence; silicon-on-insulator substrate; single-mode emission; temperature 293 K to 298 K; wavelength 1000 nm to 1600 nm; Cavity resonators; Light emitting diodes; Optimized production technology; Photonic crystals; Q-factor; Quantum dots; Silicon; Silicon; photoluminescence; photonic crystals; quantum dots; silicon;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2015.2405555
