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Author Mazurenko, Yu. T. ♦ Putilin, S. E. ♦ Spiro, A. G. ♦ Belyaev, A. G.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword PHYSICS ♦ NONLINEAR OPTICS ♦ LIGHT SCATTERING ♦ PULSES ♦ TIME RESOLUTION ♦ IMAGES
Abstract Principles of spatial scanning optical radiation on the basis of three-wave nonlinear interactions involving waves of spectral decomposition of ultrashort light pulses are proposed and demonstrated in experiments. A plane wave front of a signal pulse and a wave of spectral decomposition of a reference pulse were directed onto a nonlinear crystal. Three-wave interaction formed a rotating beam of radiation at the sum frequency at the output of the nonlinear crystal. The amplitude and phase of the rotating beam were modulated in time in accordance with the time profile of a signal pulse. This made it possible to obtain the spatial transform of the time profile of a signal pulse. The results obtained formally correspond to angular scanning by a rotating mirror. Moreover, the spatial transformation of the time profile of a pulse similar to the slit scanning is demonstrated. The results obtained may form the basis of new methods of photochronography with pico- and femtosecond time resolution. 11 refs., 6 figs.
ISSN 0030400X
Educational Use Research
Learning Resource Type Article
Publisher Date 1995-11-01
Publisher Place United States
Journal Optics and Spectroscopy
Volume Number 79
Issue Number 5


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