2014•The Review of Laser EngineeringOpen access
Dual-Comb Spectroscopy
Takuro Ideguchi
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Abstract
Laser frequency comb has recently been utilized in a variety of fields beyond its original application for the precision spectroscopy. Here, we introduce another application for broadband molecular spectroscopy. Dual-comb spectroscopy has surpassed the capabilities of conventional Fourier transform spectroscopy based on a Michelson interferometer in terms of measurement speed, spectral resolution, and accuracy. In this review paper, basics of the dual-comb spectroscopy and hot topics in this field are discussed.
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