Title :
Optical modes in InGaAs/GaAs quantum dot microtube ring resonators at room temperature
Author :
Li, F. ; Vicknesh, S. ; Mi, Z.
Author_Institution :
Dept. of Electr. & Comput. Eng., McGill Univ., Montreal, QC
Abstract :
A report is presented, for the first time, on the observation of optical resonance modes in free-standing InGaAs/GaAs quantum dot microtubes at room temperature. The three-dimensionally confined optical modes, with wavelengths in the range of 1.1-1.3 mum and an intrinsic Q-factor of -2000, are directly related to the microtube surface geometry and, consequently, can be precisely engineered by varying the microtube surface.
Keywords :
III-V semiconductors; Q-factor; gallium arsenide; indium compounds; micro-optomechanical devices; micromechanical resonators; optical resonators; semiconductor quantum dots; InGaAs-GaAs; free-standing quantum dot microtubes; intrinsic Q-factor; microtube surface geometry; optical resonance modes; temperature 293 K to 298 K; three-dimensionally confined optical modes; wavelength 1.1 mum to 1.3 mum;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2009.1076
