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Nonlinear optical response of a gold surface in the visible range: A study by two-color sum-frequency generation spectroscopy. I. Experimental determination
KTH, School of Chemical Science and Engineering (CHE), Chemistry. Univ Paris Saclay, Univ Paris Sud, CNRS, Lab Chim Phys, Batiment 201 P2, F-91405 Orsay, France.
Univ Paris Saclay, Univ Paris Sud, CNRS, Lab Chim Phys, Batiment 201 P2, F-91405 Orsay, France.;CNRS, IN2P3, GANIL, CEA,DSM, Blvd Henri Becquerel, F-14076 Caen, France..
Univ Paris Saclay, Univ Paris Sud, CNRS, Lab Chim Phys, Batiment 201 P2, F-91405 Orsay, France..
Univ Paris Saclay, Univ Paris Sud, CNRS, Lab Chim Phys, Batiment 201 P2, F-91405 Orsay, France..
2018 (English)In: Journal of Chemical Physics, ISSN 0021-9606, E-ISSN 1089-7690, Vol. 148, no 13, article id 134701Article in journal (Refereed) Published
Abstract [en]

We experimentally determine the effective nonlinear second-order susceptibility of gold over the visible spectral range. To reach that goal, we probe by vibrational two-color sum-frequency generation spectroscopy the methyl stretching region of a dodecanethiol self-assembled monolayer adsorbed on a gold film. The sum-frequency generation spectra show a remarkable shape reversal when the visible probe wavelength is tuned from 435 to 705 nm. After correcting from Fresnel effects, the methyl stretching vibrations serve as an internal reference, allowing to extract the dispersion of the absolute phase and relative amplitude of the effective nonlinear optical response of gold in the visible range.

Place, publisher, year, edition, pages
American Institute of Physics (AIP), 2018. Vol. 148, no 13, article id 134701
National Category
Chemical Sciences Physical Sciences
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URN: urn:nbn:se:kth:diva-226767DOI: 10.1063/1.5021553ISI: 000429359200043PubMedID: 29626883Scopus ID: 2-s2.0-85045113611OAI: oai:DiVA.org:kth-226767DiVA, id: diva2:1203659
Note

QC 20180504

Available from: 2018-05-04 Created: 2018-05-04 Last updated: 2018-05-04Bibliographically approved

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