Angularly resolved light scattering from aerosolized spores: observations and calculations.
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.
Auger
Jean-Claude
JC
Department of Applied Physics, Yale University, New Haven, Connecticut 06520, USA.
Aptowicz
Kevin B
KB
Pinnick
Ronald G
RG
Pan
Yong-Le
YL
Chang
Richard K
RK
D000388:Air; D001412:Bacillus subtilis / Q000378:metabolism*; D001703:Biophysics / Q000295:instrumentation / Q000379:methods*; D003198:Computer Simulation; D004058:Diffusion; D004563:Electrochemistry / Q000295:instrumentation / Q000379:methods; D007834:Lasers; D008027:Light; D008962:Models, Theoretical; D055095:Optics and Photonics; D010316:Particle Size; D012542:Scattering, Radiation; D012984:Software; D013171:Spores, Bacterial / Q000737:chemistry*