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Light scattering from micron-size fibers

Journal Article · · J. Opt. Soc. Am.; (United States)
Exact theoretical expressions for scattering of light incident at oblique angles on a cylinder are derived and compared with measurements on aluminized quartz fibers (diameters 0.9--2.2 ..mu..m) using a He-Ne laser. The free-electron gas model was used for the dielectric response function for Al. Fitting the angular positions of observed maxima and minima in the scattered intensity to the calculated values gave a sensitive method for determining fiber radii, reproducible within +- 3%--5%. These radii agreed with values from Fraunhofer diffraction at normal incidence within +- 10%--15%. The role of surface plasmon excitation in the scattering of light from cylinders is discussed briefly.
Research Organization:
Oak Ridge National Laboratory, Health Physics Division, Oak Ridge, Tennessee 37830
OSTI ID:
7115667
Journal Information:
J. Opt. Soc. Am.; (United States), Journal Name: J. Opt. Soc. Am.; (United States) Vol. 67:4; ISSN JOSAA
Country of Publication:
United States
Language:
English