Simplified sum frequency generation using a narrow free-spectral-range etalon

Isaac G. Prichett, Aaron Massari

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Abstract

We report the implementation of a narrow free-spectral-range Fabry–Perot etalon for multiplex vibrational sum frequency generation (VSFG) spectroscopy. Moreover, we demonstrate the use of the etalon reflection to simultaneously generate a broadband infrared pulse, which enables a multiplex VSFG spectrometer using a total of 0.58 W. VSFG spectra with and without a nonresonant-suppressed background were simultaneously collected utilizing time asymmetry in the upconverting pulse. Two examples are demonstrated in which spectral perturbations can be induced by the time-asymmetric pulse even without nonresonant suppression.

Original languageEnglish (US)
Pages (from-to)4747-4750
Number of pages4
JournalOptics Letters
Volume43
Issue number19
DOIs
StatePublished - Oct 1 2018

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