THz spectroscopy with an absolute frequency scale by a QCL phase-locked to a THz frequency comb

L. Consolino,S. Bartalini,Andrea Taschin,Paolo Bartolini,P. Cancio,M. De Pas,H. E. Beere,D. A. Ritchie,Miriam S Vitiello,R. Torre,P. De Natale

Infrared, Millimeter, and Terahertz Waves（2013）

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摘要

The exploitation of a THz frequency comb for absolutely-referenced THz spectroscopy is presented. The frequency of a 2.5-THz QCL, phase-locked to the comb, is swept across a methanol line, providing the spectroscopy with and absolute-frequency scale.

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关键词

laser mode locking,microwave photonics,quantum cascade lasers,qcl phase-locked comb,thz frequency comb,thz spectroscopy,absolute frequency scale,frequency 2.5 thz,methanol line

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