title: Frequency comb Vernier spectroscopy for broadband, high-resolution, high-sensitivity absorption and dispersion spectra.
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.
authors.affiliation: Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Strasse 1, D-85748 Garching, Germany. cgohle@few.vu.nl
authors.forename: Christoph
authors.initials: C
authors.lastname: Gohle
authors.forename: Björn
authors.initials: B
authors.lastname: Stein
authors.forename: Albert
authors.initials: A
authors.lastname: Schliesser
authors.forename: Thomas
authors.initials: T
authors.lastname: Udem
authors.forename: Theodor W
authors.initials: TW
authors.lastname: Hänsch