Efficient SRS of chirped Ti : sapphire laser pulses in BaWO4 crystals. (1st March 2022)

• Record Type: Journal Article
• Authors: Kinyaevsky, I O; Kovalev, V I; Koribut, A V; Grudtsyn, Ya V; Seleznev, L V; Dunaeva, E. E.; Ionin, A A
• Is Part Of: Quantum electronics. Volume 52:Number 3(2022)
• Page Start: 278
• Page End: 282
• Publication Date: 2022-03-01
• Subjects: stimulated Raman scattering -- BaWO4 crystal -- Ti : sapphire laser -- femtosecond pulse.; Quantum electronics -- Periodicals; 537.5
• DOI: 10.1070/QEL18002
• Languages: English
• ISSNs: 1063-7818

Abstract

Abstract: We report an experimental study of SRS of chirped 40-ps Ti : sapphire laser pulses with a transform-limited duration of 0.35 ps and centre wavelength of 925 nm in BaWO4 crystals. The highest generation efficiency for the ~925 cm -1 shifted Stokes signal of SRS by the υ1 vibrational mode of BaWO4 crystals has been reached using three sequentially located crystals with a total length of 3.3 cm. The position of the crystals after a focusing mirror has been optimised, which has ensured a pump-to-Stokes conversion efficiency of ~50% in terms of spectral brightness and ~20% in terms of pulse energy.