Angularly resolved light scattering from aerosolized spores: observations and calculations
Angularly resolved light scattering from aerosolized spores: observations and calculations
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DOI：
10.1364/ol.32.003358
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发表时间：
2007-11-15
期刊：
影响因子：
3.6
通讯作者：
Chang, Richard K.
中科院分区：
文献类型：
--
作者：
Auger, Jean-Claude;Aptowicz, Kevin B.;Chang, Richard K.
角分辨弹性光散射模式从个人雾化枯草芽孢杆菌孢子进行了定性比较与模拟。对于从大约77度到130度变化的极散射角和从0度到360度变化的方位角，收集孢子的二维角光学散射图案。通过模拟具有三种不同颗粒形状的孢子，使用单T矩阵形式进行计算：（1）具有球形端盖的有限长度圆柱体，（2）球体，以及（3）接触的两个球体。计算和测量之间的良好的协议被发现为有限长的圆柱体与球形端盖，较差的协议被发现的球体，和最差的协议是两个球接触。(c)2007年，美国光学学会。
Angularly resolved elastic light scattering patterns from individual aerosolized Bacillus subtilis spores were qualitatively compared with simulations. Two-dimensional angular optical scattering patterns of the spores were collected for polar scattering angles varying from approximately 77 degrees to 130 degrees and azimuthal angles varying from 0 degrees to 360 degrees. Computations were performed with single T-matrix formalism by simulating a spore with three different particle shapes: (1) a finite-length cylinder with spherical end caps, (2) a spheroid, and (3) two spheres in contact. Excellent agreement between computation and measurement was found for the finite-length cylinder with spherical end caps, poorer agreement was found for the spheroids, and the poorest agreement was for the two spheres in contact. (c) 2007 Optical Society of America.