We measured the Mueller elastic light-scattering matrix for two parallel dielectric (quartz) fibers over the angular range 5–170° by using the polarization-modulation technique. These experimental results are the first verification to our knowledge of a recent theory for light scattering from parallel fibers. Measurements were made for both end-on and side-on illuminations at normal incidence for submicrometer-sized fibers at various separations from 2 to 66 μm. Electrostatic attraction between the fibers prevented the investigation for separations below 2 μm. The possibility of designing a sensitive vibration detector is suggested.

© 1991 Optical Society of America

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