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Scientific and technical journal of information technologies, mechanics and optics
UDK
Issue:5 (81)
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PARTICULARITIES OF FEMTOSECOND SPECTRAL SUPERCONTINUUM GENERATION IN CRYSTAL MEDIA WITH X(2)-NONLINEARITY
Annotation
Results of supercontinuum generation experiments in case of excitation by optical pulses with central wavelength 830 nm, duration 40-50 fs, energy up to 1,0-1,5 mJ are given. Supercontinuum radiation is detected in crystal DKDP and other crystals with X(2)-nonlinearity at range from 400 nm to 1450 nm, as well as up to 2200 nm, where radiation within blue range 400–2200 nm is mainly caused by parametric processes. Obtained radiation is inferior to supercontinuum generators based on micro structured fibers by the width of output spectrum.
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