Abstract
Results from studying the conditions under which spectra generated by a 50 fs pulse from a Ti:Sa setup broaden at a wavelength of 475 nm are described, along with how to compensate for the accompanying positive dispersion. It is shown that the width of the spectra grows from 5 to 15 nm when the thickness of K8 glass is optimal. Pulse recompression with a spectral width of a 12.2 nm is achieved, along with a pulse duration of 22.6 fs.
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Original Russian Text © S.V. Alekseev, N.G. Ivanov, M.V. Ivanov, V.F. Losev, Yu.N. Panchenko, 2015, published in Izvestiya Rossiiskoi Akademii Nauk. Seriya Fizicheskaya, 2015, Vol. 79, No. 2, pp. 266–269.
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Alekseev, S.V., Ivanov, N.G., Ivanov, M.V. et al. Broadening of the spectra of femtosecond laser pulses upon passing through optical materials. Bull. Russ. Acad. Sci. Phys. 79, 242–245 (2015). https://doi.org/10.3103/S1062873815020045
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DOI: https://doi.org/10.3103/S1062873815020045