Microtorus: a High Finesse Microcavity with Whispering-Gallery Modes
Optics
2009-11-06 v1 Chemical Physics
Instrumentation and Detectors
Quantum Physics
Abstract
We have demonstrated a 165 micron oblate spheroidal microcavity with free spectral range 383.7 GHz (3.06nm), resonance bandwidth 25 MHz (Q ~ 10^7) at 1550nm, and finesse F > 10^4. The highly oblate spheroidal dielectric microcavity combines very high Q-factor, typical of microspheres, with vastly reduced number of excited whispering-gallery (WG) modes (by two orders of magnitude). The very large free spectral range in the novel microcavity - few hundred instead of few GigaHertz in typical microspheres - is desirable for applications in spectral analysis, narrow-linewidth optical and RF oscillators, and cavity QED.
Keywords
Cite
@article{arxiv.physics/0009092,
title = {Microtorus: a High Finesse Microcavity with Whispering-Gallery Modes},
author = {Vladimir S. Ilchenko and Michael L. Gorodetsky and X. Steve Yao and Lute Maleki},
journal= {arXiv preprint arXiv:physics/0009092},
year = {2009}
}
Comments
11 pages, 3 figures