Intracavity laser gas-absorption measurements using a frequency-locked resonant whispering-gallery microresonator are reported. High sensitivity enhancement is observed and is described in terms of the effective detection path length within the microcavity on resonance.
© 2006 Optical Society of America
G. Farca, S. I. Shopova, and A. T. Rosenberger, "Cavity-Enhanced Laser Spectroscopy Using Microresonator Whispering-Gallery Modes," in Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies, Technical Digest (CD) (Optical Society of America, 2006), paper CThDD4.
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