A simple turbulence simulator for adaptive optics

Details A simple turbulence simulator for adaptive optics A simple turbulence simulator for adaptive optics

Oct 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004spie.5490..766t&link_type=abstract

Advancements in Adaptive Optics. Edited by Domenico B. Calia, Brent L. Ellerbroek, and Roberto Ragazzoni. Proceedings of the SPI

Physics

Optics

2

Scientific paper

In this article, I describe a new, inexpensive way to make transparent phase screens. I list available technologies of physical turbulence simulation and describe the transparent phase-plate screens that were produced by the laquer-spray technique and characterized in the laboratory. The spatial spectrum of phase perturbations is a reasonable match to the Kolmogorov law with r0 around 0.5 mm at 0.633 μm over spatial frequencies from 0.75 to 5 mm-1. A turbulence simulator using two such rotating screens and destined for the adaptive optics instrument for the 4.1-m SOAR telescope is described.

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