Related Experiment Video
Updated: Jul 19, 2026
Scanning Light Scattering Profiler (SLPS) Based Methodology to Quantitatively Evaluate Forward and Backward Light Scattering from Intraocular Lenses
Published on: June 6, 2017
Simultaneous forward- and backward-hemisphere elastic-light-scattering patterns of respirable-size aerosols
Gustavo E Fernandes1, Yong-Le Pan, Richard K Chang
1Department of Applied Physics and Center for Laser Diagnostics, Yale University, New Haven, Connecticut 06520-8284, USA. gustavo.fernandes@yale.edu
Abstract:
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 4pi 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.
