Dual-comb coherent Raman spectroscopy with lasers of 1-GHz pulse repetition frequency

Mohler, Kathrin J.; Bohn, Bernhard J.; Yan, Ming; Melén, Gwénaëlle; Hänsch, Theodor W. und Picqué, Nathalie (2017): Dual-comb coherent Raman spectroscopy with lasers of 1-GHz pulse repetition frequency. In: Optics Letters, Bd. 42, Nr. 2: S. 318-321

Abstract

We extend the technique of multiplex coherent Raman spectroscopy with two femtosecond mode-locked lasers to oscillators of a pulse repetition frequency of 1 GHz. We demonstrate a spectra of liquids, which span 1100 cm(-1) of Raman shifts. At a resolution of 6 cm(-1), their measurement time may be as short as 5 mu s for a refresh rate of 2 kHz. The waiting period between acquisitions is improved 10-fold compared to previous experiments with two lasers of 100-MHz repetition frequencies. (C) 2017 Optical Society of America

• Dokumententyp: Zeitschriftenartikel
• Fakultät: Physik
• Themengebiete: 500 Naturwissenschaften und Mathematik > 530 Physik
• ISSN: 0146-9592
• Sprache: Englisch