A Wide-Band Femtosecond Pump–Probe Spectrometer Based on a Laser with an Active Medium Based on Chromium-Doped Forsterite Crystal

An instrument for recording photoinduced-absorption spectra using the pump–probe method with femtosecond time resolution is described, in which a regenerative amplifier based on a chromium-doped forsterite crystal with a fundamental harmonic of 1240 nm is used as the laser system. Two optical scheme...

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Bibliographic Details
Published inInstruments and experimental techniques (New York) Vol. 62; no. 4; pp. 548 - 553
Main Authors Kryukov, I. V., Petrov, N. Kh, Ivanov, A. A., Alfimov, M. V.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.10.2019
Springer Nature B.V
Subjects
Absorption spectra
Chromium
Electrical Engineering
Forsterite
General Experimental Techniques
Measurement Science and Instrumentation
Optical pumping
Physical Chemistry
Physics
Physics and Astronomy
Recording
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Summary:An instrument for recording photoinduced-absorption spectra using the pump–probe method with femtosecond time resolution is described, in which a regenerative amplifier based on a chromium-doped forsterite crystal with a fundamental harmonic of 1240 nm is used as the laser system. Two optical schemes with pumping at a wavelength of 620 nm and a wavelength of 413 nm that are described in detail allow measurements in the spectral range of 280–1000 nm. The time resolution of the system is 250 fs.
ISSN:0020-4412
1608-3180
DOI:10.1134/S0020441219040079