The new IAA Light Scattering Facility

Details The new IAA Light Scattering Facility The new IAA Light Scattering Facility

May 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005elsn.conf..245m&link_type=abstract

In: 8th Conference on Electromagnetic and Light Scattering by Nonspherical Particles: Theory, Measurements and Applications, Ed

Statistics

Applications

1

Experiments, Scattering Matrix

Scientific paper

We are building up a light scattering setup at the Instituto de Astrofísica de Andalucía (IAA), Granada, Spain. The design of this new setup is based on the well known apparatus currently located at the Astronomical Institute "Anton Pannekoek", University of Amsterdam, The Neteherlands [1],[2]. By using a polarization modulation technique, all scattering matrix elements as function of the scattering angle are obtained from 8 separate measurement runs. In this new setup we use an Argon-Kripton laser (483 nm, 488 nm, 514 nm, 568 nm, and 647 nm) as light source. The detectors are mounted on dove tails that allow their movement backward and forward. In addition, the detectors have been designed to minimize blockage of the laser beam at positions close to the forward and backward directions. In this way we intend to do measurements covering an angle range from 3 to 177 degrees. The alignment of the optics is automatically done and controlled from the computer reducing the measurement time.

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