Particle Sizing With A Laser Interferometer For Spheres Having Sizes Of Several Wavelengths

Takashi Takeo; Hajime Hattori

doi:10.1117/12.961317

3 April 1989 Particle Sizing With A Laser Interferometer For Spheres Having Sizes Of Several Wavelengths

Takashi Takeo, Hajime Hattori

Proceedings Volume 1121, Interferometry '89; (1989) https://doi.org/10.1117/12.961317
Event: Interferometry '89, 1989, Warsaw, Poland

Abstract

Particle sizing based on the phase Doppler technique is investigated for spheres having sizes of several light wavelengths by using a laser interferometer(a laser Doppler velocimeter) that has the receiving optics composed of paired optical fibers. The phase dependence on the particle size is calculated by means of multipole expansion of electro-magnetic fields and the calculated results are compared with those obtained from geometrical optics. Experiments using silicon resin particles have been conducted on the basis of oscillatory part of the phase curve.

Citation Download Citation

Takashi Takeo and Hajime Hattori "Particle Sizing With A Laser Interferometer For Spheres Having Sizes Of Several Wavelengths", Proc. SPIE 1121, Interferometry '89, (3 April 1989); https://doi.org/10.1117/12.961317

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