Abstract
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.
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ACKNOWLEDGMENTS
This study was supported by the Russian Science Foundation, project no. 14-13-00751p.
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Translated by A. Seferov
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Kryukov, I.V., Petrov, N.K., Ivanov, A.A. et al. A Wide-Band Femtosecond Pump–Probe Spectrometer Based on a Laser with an Active Medium Based on Chromium-Doped Forsterite Crystal. Instrum Exp Tech 62, 548–553 (2019). https://doi.org/10.1134/S0020441219040079
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DOI: https://doi.org/10.1134/S0020441219040079