Laboratory measurements of laser-scattered light by rough surfaces

Details Laboratory measurements of laser-scattered light by rough surfaces Laboratory measurements of laser-scattered light by rough surfaces

Jan 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999adspr..23.1201n&link_type=abstract

Advances in Space Research, Volume 23, Issue 7, p. 1201-1204.

Physics

2

Scientific paper

We plan to collect reference data for the interpretation of the in-situ observations of an asteroid by a multi-band imager onboard MUSES-C, the Japanese asteroid sample return mission. We have prepared instruments for measuring light scattering properties of rough surfaces. The sample rough surface is illuminated by He-Ne laser beam of wavelength 633 nm and the scattered light is detected by a photomultiplier. Incident and emergent angles to the surface are changed independently in a vertical plane. In order to obtain data with various geometries, the sample surface is tilted parallel or perpendicular to the plane of the ray. The dynamic range of the measurable intensity is over 104, which will enable a precise measurement of the intensity and the state of polarization of the scattered light.

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