期刊
OPTICS EXPRESS
卷 22, 期 18, 页码 21999-22008出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.22.021999
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资金
- National Science Foundation (NSF) [1254324]
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [1254324] Funding Source: National Science Foundation
We report the measurement of degenerate coherent anti-Stokes Raman scattering (CARS) in a high-finesse optical microcavity, with an atmospheric gas as the nonlinear medium. Unlike the well-known bulk process in which index-dispersion compensation is required for phase-matching, efficient microcavity CARS involves a resonant coupling at the Stokes, pump, and anti-Stokes frequencies which can be described using coupled-mode analysis. We show how the interaction is thereby dramatically enhanced in a microscopic sample volume and illustrate the technique for the measurement of CO2 in air. (C) 2014 Optical Society of America
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