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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 41, Iss. 12 — Apr. 20, 2002
  • pp: 2333–2348

Scattering matrix of infrared radiation by ice finite circular cylinders

Lisheng Xu, Jilie Ding, and Andrew Y. S. Cheng  »View Author Affiliations


Applied Optics, Vol. 41, Issue 12, pp. 2333-2348 (2002)
http://dx.doi.org/10.1364/AO.41.002333


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Abstract

Scattering matrix characteristics of polydisperse, randomly oriented, small ice crystals modeled by finite circular cylinders with various ratios of the length to diameter (L/D) ratio are calculated by use of the exact T-matrix approach, with emphasis on the thermal infrared spectral region that extends from the atmospheric short-wave IR window to the far-IR wavelengths to as large as 30 µm. The observed ice crystal size distribution and the well-known power-law distribution are considered. The results of the extensive calculations show that the characteristics of scattering matrix elements of small ice circular cylinders depend strongly on wavelengths and refractive indices, particle size distributions, and the L/D ratios. The applicability of the power-law distribution and particle shapes for light scattering calculations for small ice crystals is discussed. The effects of the effective variance of size distribution on light scattering characteristics are addressed. It seems from the behavior of scattering matrix elements of small ice crystals that the combination of 25 and 3.979 µm has some advantages and potential applications for remote sensing of cirrus and other ice clouds.

© 2002 Optical Society of America

OCIS Codes
(010.1290) Atmospheric and oceanic optics : Atmospheric optics
(010.2940) Atmospheric and oceanic optics : Ice crystal phenomena
(040.3060) Detectors : Infrared
(120.0280) Instrumentation, measurement, and metrology : Remote sensing and sensors
(280.1310) Remote sensing and sensors : Atmospheric scattering
(290.5850) Scattering : Scattering, particles

History
Original Manuscript: March 6, 2001
Revised Manuscript: October 21, 2001
Published: April 20, 2002

Citation
Lisheng Xu, Jilie Ding, and Andrew Y. S. Cheng, "Scattering matrix of infrared radiation by ice finite circular cylinders," Appl. Opt. 41, 2333-2348 (2002)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-41-12-2333

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