Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-19292
Garrett-Roe, S; Hamm, P (2009). Purely absorptive three-dimensional infrared spectroscopy. Journal of Chemical Physics, 130(16):164510.
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We demonstrate a method to collect purely absorptive three-dimensional (3D) fifth-order vibrational spectra on the model system CO2 in H2O. The six beam interferometer is described, as well as a method to experimentally determine the phase of the 3D spectrum. The measured spectra agree very well with simulations of the data based on the cumulant expansion. There are five peaks corresponding to different paths up and down the vibrational ladder. The positions, signs, and amplitudes of the peaks agree with theoretical predictions, and the intensities of the peaks scale linearly with concentration. Based on the concentration dependence and agreement between the simulations and measurements, we conclude that cascaded lower order signals contribute negligibly to the observed signal.
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|Item Type:||Journal Article, refereed, original work|
|Communities & Collections:||07 Faculty of Science > Department of Chemistry|
|Date:||24 April 2009|
|Deposited On:||26 Jun 2009 11:21|
|Last Modified:||05 Jun 2014 13:50|
|Publisher:||American Institute of Physics|
|Funders:||Swiss National Science Foundation (SNF)|
|Additional Information:||©2009 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 'The Journal of Chemical Physics' and may be found at http://link.aip.org/link/?JCPSA6/130/164510/1|
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