30 April 2003 Linear and nonlinear optical effects in aerosol particles stimulated by femtosecond laser pulse
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Proceedings Volume 4976, Atmospheric Propagation; (2003) https://doi.org/10.1117/12.479194
Event: High-Power Lasers and Applications, 2003, San Jose, CA, United States
Abstract
A problem of optical effects in aerosol particles is considered in the tasks of atmospheric femtosecond optics. Based on numerical solution of a problem on diffraction of plane wave of femtosecond duration by a weekly absorbing spherical particle, the spatial-temporal structure of the internal light field is studied. An existence of a multi-mode exciting regime of whispering galler modes is found. It is shown that a decrease of this factor at transition from the monochromatic wave to the femtosecond pulse results in significant decrease of intense internal field in the points of its maxima. A possibility to generate stimulated radiation in a particle at the Stokes frequencies and the third harmonics frequencies is also discussed. The thresholds of nonlinear optical effects under the condition of femtosecond laser pulse action on a dielectric microsphere are considered.
© (2003) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Alexander A. Zemlyanov, Alexander A. Zemlyanov, Yuri E. Geints, Yuri E. Geints, } "Linear and nonlinear optical effects in aerosol particles stimulated by femtosecond laser pulse", Proc. SPIE 4976, Atmospheric Propagation, (30 April 2003); doi: 10.1117/12.479194; https://doi.org/10.1117/12.479194
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