Title :
Compensation of thermal effect in high-Q toroidal microresonators by PDMS coating
Author :
He, Lina ; Xiao, Y-F. ; Dong, C. ; Zhu, J. ; Gaddam, V. ; Yang, L.
Author_Institution :
Dept. of Electr. & Syst. Eng., Washington Univ. in St. Louis, St. Louis, MO, USA
Abstract :
We theoretically and experimentally demonstrate that thermal effect in ultra-high-Q silica toroidal microresonators can be compensated by applying a layer of polydimethylsiloxane (PDMS). The observed Q factor is 1.5times106 for coating thickness of 0.52 mum.
Keywords :
Q-factor; antireflection coatings; micro-optomechanical devices; microcavities; micromechanical resonators; optical polymers; optical resonators; refractive index; silicon compounds; thermo-optical effects; whispering gallery modes; PDMS coating; SiO2; high-Q factor; polydimethylsiloxane; refractive index; silica toroidal microresonator; size 0.52 mum; thermal effect; whispering-gallery-mode resonator; Coatings; Microcavities; Nonlinear optics; Optical polymers; Optical refraction; Q factor; Scanning electron microscopy; Silicon compounds; Thermal expansion; Thermooptic effects; (140.3948) Microcavity devices; (160.5470) Polymers;
Conference_Titel :
Lasers and Electro-Optics, 2009 and 2009 Conference on Quantum electronics and Laser Science Conference. CLEO/QELS 2009. Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-55752-869-8
Electronic_ISBN :
978-1-55752-869-8
