Abstract

A geometric optics approximation is used to compute the near-infrared absorption by particles containing internal scatterers, such as bubbles, occlusions, or other refractive-index inhomogeneities. If the probabilities of absorption and scattering are comparable, absorption by a weakly absorbing particle can be increased substantially beyond that in the absence of internal scattering. Although the geometric optics approach limits the range of applicability of the results, the effects are not necessarily restricted to particle dimensions and wavelengths where geometric optics is accurate.

© 1987 Optical Society of America

Spectral signatures of micron-sized particles in the Shuttle optical environment

W. T. Rawlins and B. D. Green
Appl. Opt. 26(15) 3052-3060 (1987)

Scattering and absorption property database for nonspherical ice particles in the near- through far-infrared spectral region

Ping Yang, Heli Wei, Hung-Lung Huang, Bryan A. Baum, Yong X. Hu, George W. Kattawar, Michael I. Mishchenko, and Qiang Fu
Appl. Opt. 44(26) 5512-5523 (2005)

Infrared (10.6-μm) scattering and extinction in laboratory water and ice clouds

Kenneth Sassen
Appl. Opt. 20(2) 185-193 (1981)

Asymptotic solutions for optical properties of large particles with strong absorption

Ping Yang, Bo-Cai Gao, Bryan A. Baum, Yong X. Hu, Warren J. Wiscombe, Michael I. Mishchenko, Dave M. Winker, and Shaima L. Nasiri
Appl. Opt. 40(9) 1532-1547 (2001)

Near Infrared Scattering by Sunlit Terrestrial Clouds

Henry H. Blau, Ronald P. Espinola, and Edward C. Reifenstein
Appl. Opt. 5(4) 555-564 (1966)