Simultaneous forward- and backward-hemisphere elastic-light-scattering patterns of respirable-size aerosols

被引：39

作者：

Fernandes, Gustavo E. ^{[1
]}

Pan, Yong-Le

Chang, Richard K.

Aptowicz, Kevin

Pinnick, Ronald G.

机构：

[1] Yale Univ, Dept Appl Phys, New Haven, CT 06520 USA

[2] Yale Univ, Ctr Laser Diagnost, New Haven, CT 06520 USA

[3] W Chester Univ, Dept Phys, W Chester, PA 19383 USA

[4] USA, Res Lab, Adelphi, MD 20783 USA

来源：

OPTICS LETTERS | 2006年 / 31卷 / 20期

关键词：

D O I：

10.1364/OL.31.003034

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Two-dimensional angular optical scattering (TAOS) patterns of aerosols are measured simultaneously from the forward hemisphere 15 degrees < theta < 90 degrees as well as the backward hemisphere 90 degrees < theta < 165 degrees (detecting 63% of the 4 pi sr of scattered light) by using an ellipsoidal reflector and an intensified CCD detector. TAOS patterns were obtained from polystyrene-latex spheres (individuals and aggregates) and from single Bacillus subtilis spores. These information-rich patterns, measured with a single laser pulse for individual particles on the fly, suggest that forward-TAOS and backward-TAOS measurements may be used for rapid classification of single aerosol particles. (c) 2006 Optical Society of America.

引用

页码：3034 / 3036

页数：3

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