PICOSECOND UV PUMP IR PROBE SPECTROMETER FOR THE 2-5-MU-M SPECTRAL REGION

Authors
ASCHENBRUCKER J STEEGMULLER U ERNSTING NP BUBACK M SCHROEDER J JASNY J
Citation
J. Aschenbrucker et al., PICOSECOND UV PUMP IR PROBE SPECTROMETER FOR THE 2-5-MU-M SPECTRAL REGION, Applied physics. B, Lasers and optics, 65(4-5), 1997, pp. 441-444
Citations number
17
Categorie Soggetti
Physics, Applied",Optics
Journal title
Applied physics. B, Lasers and optics → ACNP
ISSN journal
09462171
Volume
65
Issue
4-5
Year of publication
1997
Pages
441 - 444
Database
ISI
SICI code
0946-2171(1997)65:4-5<441:PUPIPS>2.0.ZU;2-O
Abstract
A spectrometer for transient infrared absorption is described for samp les which are exchanged or regenerated slowly. It is based on an excim er/dye laser system operating at 5-10 Hz repetition rate. Excitation p ulses at 308 nm with 3 mJ energy are followed by infrared probe pulses which can be scanned continuously in the range 1950-4300 cm(-1). Infr ared absorbance changes are detected with an accuracy of 1 mOD and a t ime resolution of 1.8 ps.