Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1250074 | Vibrational Spectroscopy | 2006 | 8 Pages |
Abstract
Here we demonstrate FT-IR emission spectroscopy, which is a technique that utilizes the CW optical pumping in order to prepare and monitor vibrtaionally excited states of samples. Emission spectra of the both, all-trans retinal and bacteriorhodopsin, have demonstrated the extremely high-sensitivity to the changes in the illumination conditions. We assume that such spectral behavior is the result of the complex nature of the states involved in IR-transitions. One would expect that even relatively small changes in coordination geometry would have a significant effect on the infrared spectra. This approach is a particularly useful for the detection of the previously unknown vibrational modes. It appears possible, that the IR-emission spectral data needed for a precise vibrational assignment of the bR's structure can be available.
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Alexei G. Gagarinov, Olga V. Degtyareva, Andrei A. Khodonov, Evgenie L. Terpugov,