Journal article
Compressively Sampled Two-Dimensional Infrared Spectroscopy That Preserves Line Shape Information
The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory, Vol.121(16), pp.3088-3093
04/27/2017
DOI: 10.1021/acs.jpca.7b01965
PMID: 28365984
Abstract
Two-dimensional infrared (2D IR) spectroscopy is a powerful tool to investigate molecular structures and dynamics on femtosecond to picosecond time scales and is applied to diverse systems. Current technologies allow for the acquisition of a single 2D IR spectrum in a few tens of milliseconds using a pulse shaper and an array detector, but demanding applications require spectra for many waiting times and involve considerable signal averaging, resulting in data acquisition times that can be many days or weeks of laboratory measurement time. Using compressive sampling, we show that we can reduce the time for collection of a 2D IR data set in a particularly demanding application from 8 to 2 days, a factor of 4×, without changing the apparatus and while accurately reproducing the line-shape information that is most relevant to this application. This result is a potent example of the potential of compressive sampling to enable challenging new applications of 2D IR.
Details
- Title: Subtitle
- Compressively Sampled Two-Dimensional Infrared Spectroscopy That Preserves Line Shape Information
- Creators
- Jonathan J Humston - University of IowaIpshita Bhattacharya - University of IowaMathews Jacob - University of IowaChristopher M Cheatum - University of Iowa
- Resource Type
- Journal article
- Publication Details
- The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory, Vol.121(16), pp.3088-3093
- Publisher
- American Chemical Society
- DOI
- 10.1021/acs.jpca.7b01965
- PMID
- 28365984
- ISSN
- 1089-5639
- eISSN
- 1520-5215
- Grant note
- DOI: 10.13039/100000001, name: National Science Foundation, award: CHE-1361765
- Language
- English
- Date published
- 04/27/2017
- Academic Unit
- Roy J. Carver Department of Biomedical Engineering; Radiology; Electrical and Computer Engineering; Core Research Facilities; Iowa Neuroscience Institute; Radiation Oncology; Chemistry
- Record Identifier
- 9983985961602771
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