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Computationally-assisted THz dual-comb spectroscopy using quantum cascade laser frequency combs

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Abstract

Utilizing the Kalman filter-based averaging scheme, we demonstrated THz dual-comb spectroscopy covering 282 GHz at ~2.8 THz with unstabilized quantum cascade laser frequency combs. The peak signal-to-noise ratio(SNR) is 60 dB within 100 us averaging.

© 2016 Optical Society of America

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