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УДК: 535.015
Generation of 2.5-octave spectral supercontinuum in a deuterium-oxide jet
Full text «Opticheskii Zhurnal»
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Publication in Journal of Optical Technology
Боримова А.А., Цыпкин А.Н., Путилин С.Э., Беспалов В.Г., Козлов С.А. Генерация спектрального суперконтинуума шириной в 2,5 октавы в струе оксида дейтерия // Оптический журнал. 2017. Т. 84. № 6. С. 10–15.
Borimova A.A., Tsypkin A.N., Putilin S.E., Bespalov V.G., Kozlov S.A. Generation of 2.5-octave spectral supercontinuum in a deuterium-oxide jet [in Russian] // Opticheskii Zhurnal. 2017. V. 84. № 6. P. 10–15.
A. A. Borimova, A. N. Tsypkin, S. É. Putilin, V. G. Bespaslov, and S. A. Kozlov, "Generation of 2.5-octave spectral supercontinuum in a deuterium-oxide jet," Journal of Optical Technology. 84(6), 368-372 (2017). https://doi.org/10.1364/JOT.84.000368
We have performed the first theoretical and experimental studies of the production of a femtosecond spectral supercontinuum in a deuterium-oxide (D2O) jet. When pumped by laser pulses with an incoming central wavelength of 800 nm, width of 40 fs, and maximum intensity of 8.8×1013 W/cm2, the supercontinuum spectrum generated in a 1.8-mm thick jet of deuterium oxide extended from 350 to 1700 nm (measured at the 0.1 level), which is 30% wider than the supercontinuum bandwidth previously observed under similar conditions in a hydrogen oxide (H2O) jet. At a pulse intensity of 2.5×1012 W/cm2, the deuterium-oxide supercontinuum had an intensity of 6.6×1011 W/cm2, for a conversion efficiency of 70%. Filamentation was observed in the pump radiation at an incoming intensity of 5.0×1012 W/cm2, which is 1.5 times smaller than the filament formation intensity for hydrogen oxide.
spectral supercontinuum, nonlinear femtosecond optics, deuterium-oxide
OCIS codes: 320.7120, 320.0320, 320.2250
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