Vibrational sum frequency generation spectroscopy using inverted visible pulses

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DOIResolve DOI: http://doi.org/10.1364/OE.18.011483
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TypeArticle
Journal titleOptics Express
Volume18
Issue11
Pages1148311494; # of pages: 12
AbstractWe present a broadband vibrational sum frequency generation (BB-VSFG) scheme using a novel ps visible pulse shape. We generate the fs IR pulse via standard procedures and simultaneously generate an ‘inverted’ time-asymmetric narrowband ps visible pulse via second harmonic generation in the pump depletion regime using a very long nonlinear crystal which has high group velocity mismatch (LiNbO3). The ‘inverted’ ps pulse shape minimally samples the instantaneous nonresonant response but maximally samples the resonant response, maintaining high spectral resolution. We experimentally demonstrate this scheme, presenting SFG spectra of canonical organic monolayer systems in the C-H stretch region (2800-3000 cm −1).
Publication date
LanguageEnglish
AffiliationNRC Steacie Institute for Molecular Sciences; National Research Council Canada
Peer reviewedYes
NPARC number17379808
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Record identifier42a2f893-a096-4eb6-a967-9465d0e6be58
Record created2011-03-23
Record modified2016-05-09
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