Frequency comb vernier spectroscopy for broadband, high-resolution, high-sensitivity absorption and dispersion spectra

C. Gohle, B. Stein, A. Schliesser, T. Udem, T.W. Hansch

Research output: Contribution to JournalArticleAcademicpeer-review

Abstract

A femtosecond frequency comb provides a vast number of equidistantly spaced narrow band laser modes that can be simultaneously tuned and frequency calibrated with 15 digit accuracy. Our Vernier spectrometer utilizes all of theses modes in a massively parallel manner to rapidly record both absorption and dispersion spectra with a sensitivity that is provided by a high finesse broadband optical resonator and a resolution that is only limited by the frequency comb line width while keeping the required setup simple. © 2007 The American Physical Society.
Original languageEnglish
JournalPhysical Review Letters
Volume99
Issue number26
DOIs
Publication statusPublished - 2007

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