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Surface sum-frequency vibrational spectroscopy of nonpolar media

Journal Article · · Proceedings of the National Academy of Sciences of the United States of America
 [1];  [2];  [3]
  1. Fudan Univ., Shanghai (China); DOE Office of Scientific and Technical Information (OSTI)
  2. Fudan Univ., Shanghai (China)
  3. Fudan Univ., Shanghai (China); Univ. of California, Berkeley, CA (United States)

Sum-frequency generation spectroscopy is surface specific only if the bulk contribution to the signal is negligible. Negligible bulk contribution is, however, not necessarily true, even for media with inversion symmetry. The inevitable challenge is to find the surface spectrum in the presence of bulk contribution, part of which has been believed to be inseparable from the surface contribution. Here, we show that, for nonpolar media, it is possible to separately deduce surface and bulk spectra from combined phase-sensitive sum-frequency vibrational spectroscopic measurements in reflection and transmission. Finally, the study of benzene interfaces is presented as an example.

Research Organization:
Univ. of California, Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Grant/Contract Number:
AC03-76SF00098
OSTI ID:
1348219
Journal Information:
Proceedings of the National Academy of Sciences of the United States of America, Journal Name: Proceedings of the National Academy of Sciences of the United States of America Journal Issue: 19 Vol. 112; ISSN 0027-8424
Publisher:
National Academy of Sciences, Washington, DC (United States)Copyright Statement
Country of Publication:
United States
Language:
English

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Cited By (5)

Symmetry-breaking-induced nonlinear optics at a microcavity surface journal November 2018
Phase reference in phase-sensitive sum-frequency vibrational spectroscopy journal June 2016
Quadrupolar mechanism for vibrational sum frequency generation at air/liquid interfaces: Theory and experiment journal August 2019
How surface-specific is 2nd-order non-linear spectroscopy? journal December 2019
Water at surfaces with tunable surface chemistries journal February 2018

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