Compact broadband vibrational sum-frequency generation spectrometer with nonresonant suppression

Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
Alexei LagutchevDana D Dlott

Abstract

A compact broadband vibrational sum-frequency spectroscopy (SFG) apparatus is described to study molecules at surfaces and interfaces. Using an étalon as the frequency narrowing device, the visible pulse has a time-asymmetric profile that allows the user to deeply suppress nonresonant background signals that hinder detection of molecular vibrational resonances. Several features of the spectrometer that, in aggregate, improve signal-to-noise ratios by a large factor are described. The spectrometer features a series of interchangeable prealigned sample holders for different applications. Examples of applications are presented where nonresonant suppression greatly improves the ability to study adsorbates on single-crystal surfaces as a function of rotation about the azimuth, and where the rapid data acquisition abilities of the spectrometer are used to study electrochemical transformations on single-crystal electrodes.

References

Aug 11, 2007·Science·Zhaohui WangDana D Dlott
Nov 1, 1984·Optics Letters·G Yang, Y R Shen
Sep 15, 1996·Optics Letters·E W van der HamE R Eliel

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Citations

Dec 29, 2010·The Journal of Chemical Physics·Björn BraunschweigDana D Dlott
Jan 1, 2016·The Journal of Physical Chemistry. B·Christopher M LeeSeong H Kim
Nov 3, 2011·Langmuir : the ACS Journal of Surfaces and Colloids·Armin RumpelWolfgang Peukert
Oct 6, 2018·Physical Chemistry Chemical Physics : PCCP·Martin ThämerMartin Wolf
Jan 9, 2018·Chemical Society Reviews·Alok M TripathiBing Joe Hwang
May 2, 2018·Optics Letters·Azhad U ChowdhuryBenjamin Doughty
Apr 1, 2019·The Review of Scientific Instruments·Azhad U ChowdhuryBenjamin Doughty
Jun 13, 2021·Advances in Colloid and Interface Science·Simon SchubotzGünter K Auernhammer
Feb 6, 2014·The Journal of Physical Chemistry Letters·Abdelaziz Boulesbaa, Eric Borguet
Aug 24, 2017·Chemical Reviews·Jan Philip Kraack, Peter Hamm
Mar 4, 2011·The Journal of Physical Chemistry. B·Jennifer E LaaserMartin T Zanni

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