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Proceedings Paper

Linear and nonlinear scattering by a dielectric sphere
Author(s): Dipakbin Qasem Chowdhury; Md. Mohiuddin Mazumder; Steven C. Hill
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Paper Abstract

Linear and nonlinear time-dependent backscattering calculations for dielectric spheres are presented. The time-dependent backscattered linear fields depend upon: (1) the linewidth of the pulse and the linewidth of the resonance of the sphere, and (2) the frequency separation between the center frequency of the pulse and the resonance frequency of the sphere. When the refractive index or absorption of the sphere is intensity-dependent, then the backscattering also depends upon the intensity of the laser pulse. When the droplets have a large intensity- dependent index of refraction or a large saturable absorption, and are illuminated near a resonance with a high-intensity laser pulse, hysteresis may be seen in the back-scattered intensity.

Paper Details

Date Published: 15 September 1993
PDF: 12 pages
Proc. SPIE 1968, Atmospheric Propagation and Remote Sensing II, (15 September 1993); doi: 10.1117/12.154831
Show Author Affiliations
Dipakbin Qasem Chowdhury, Yale Univ. and New Mexico State Univ. (United States)
Md. Mohiuddin Mazumder, Yale Univ. (United States)
Steven C. Hill, U.S. Army Research Lab. and New Mexico State Univ. (United States)


Published in SPIE Proceedings Vol. 1968:
Atmospheric Propagation and Remote Sensing II
Anton Kohnle; Walter B. Miller, Editor(s)

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