Open AccessTemperature independent tuning of whispering gallery modes in a cryogenic environment
Author(s) -
Rico Henze,
Jonathan Ward,
Oliver Benson
Publication year - 2013
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.21.000675
Subject(s) - whispering gallery wave , materials science , microbubbles , cryostat , borosilicate glass , liquid nitrogen , optics , cryogenics , bubble , cryogenic temperature , thermal , optoelectronics , acoustics , mechanics , physics , composite material , thermodynamics , resonator , superconductivity , quantum mechanics , ultrasound
A new tuning method for tuning whispering gallery modes (WGMs) in a cryogenic environment is presented. Within a home-made exchange gas cryostat the applicability of pressure tuning in microbubbles at liquid nitrogen (LN) temperature is shown. The general thermal shift and tuning behavior of borosilicate microbubbles is theoretically analyzed and compared to experimental data. We show that stress/strain tuning using compressed gas is widely unaffected by system temperature.