Abstract
A nanosecond time-resolved infrared spectroscopic system based on a dispersive scanning spectrometer has been constructed. This is an advanced version of a similar system reported in a previous paper; the time resolution has been improved from 1 μs to 50 ns and the sensitivity from 10−4 in intensity changes to 10−6. These have been achieved by the use of a high-temperature ceramic infrared light source, a photovoltaic MCT detector, and a low-noise, wide-band preamplifier developed specifically for the present purpose. Time-resolved infrared spectra of a few samples of photochemical and photobiological interests are presented to show the capability of the system. The origin of the thermal artifacts, which have been found to hamper the time-resolved infrared measurements seriously, is shown to be due to the transient reflectance change induced by a small temperature jump. The future prospect of time-resolved infrared spectroscopy is discussed with reference to other methods including infrared laser spectroscopy and Fourier transform infrared spectroscopy.
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Dates
Type | When |
---|---|
Created | 19 years, 11 months ago (Oct. 3, 2005, 5:27 p.m.) |
Deposited | 5 months, 3 weeks ago (March 10, 2025, 11:59 p.m.) |
Indexed | 2 months ago (July 2, 2025, 2:11 a.m.) |
Issued | 31 years, 3 months ago (June 1, 1994) |
Published | 31 years, 3 months ago (June 1, 1994) |
Published Online | 31 years, 3 months ago (June 1, 1994) |
Published Print | 31 years, 3 months ago (June 1, 1994) |
@article{Yuzawa_1994, title={Nanosecond Time-Resolved Infrared Spectroscopy with a Dispersive Scanning Spectrometer}, volume={48}, ISSN={1943-3530}, url={http://dx.doi.org/10.1366/000370294774368947}, DOI={10.1366/000370294774368947}, number={6}, journal={Applied Spectroscopy}, publisher={SAGE Publications}, author={Yuzawa, Tetsuro and Kato, Chihiro and George, Michael W. and Hamaguchi, Hiro-O}, year={1994}, month=jun, pages={684–690} }