Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-64696
Hamm, Peter; Savolainen, Janne (2012). Two-dimensional-Raman-terahertz spectroscopy of water: Theory. Journal of Chemical Physics, 136(9):094516.
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We discuss the hybrid 2D-Raman-THz spectroscopy of liquid water. This two-dimensional spectroscopy is designed to directly work in the low-frequency range of the intermolecular degrees of freedom. The information content of 2D-Raman-THz spectroscopy is similar to 2D-Raman or 2D-THz spectroscopy, but its experimental implementation should be easier. That is, 2D-Raman-THz spectroscopy is a 3rd-order nonlinear spectroscopy and as such completely avoids cascading of consecutive 3rd-order signals, which turned out to be a major difficulty in 5th-order 2D-Raman spectroscopy. On the other hand, it does not require any intense THz pump-pulse, the lack of which limits 2D-THz spectroscopy to the study of semiconductor quantum wells as the currently available pulse energies are too low for molecular systems. In close analogy to 2D-Raman spectroscopy, the 2D-Raman-THz response of liquid water is simulated from an all-atom molecular dynamics simulation, and the expected spectral features are discussed.
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|Item Type:||Journal Article, refereed, original work|
|Communities & Collections:||07 Faculty of Science > Department of Chemistry|
|Date:||7 March 2012|
|Deposited On:||19 Sep 2012 11:46|
|Last Modified:||17 Jun 2014 18:04|
|Publisher:||American Institute of Physics|
|Funders:||Swiss National Science Foundation (SNF) through the National Center of Competence and Research (NCCR) MUST|
|Additional Information:||(C) 2012 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in J. Chem. Phys. 136, 094516 (2012), and may be found at http://jcp.aip.org/resource/1/jcpsa6/v136/i9/p094516_s1.|
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