MR. JYOTIRMAY PAUL

The reason for blurring of celestial objects when observed through ground-based telescopes is well understood and can be compensated for by using Adaptive Optics. Robo-AO is the first robotic autonomous laser guided Adaptive Optics system operating in the sky. It is a very economical Adaptive Optics system especially suitable for observations with one to two meter class telescopes. A laser-guided adaptive optics system which works both in the visible and near-infrared wavelengths has been developed to improve the image quality of the two meter diameter telescope at IUCAA Girawali Observatory in India. In this seminar, we present the optomechanical design and development of the LGSF and the Cassegrain AO facility with various test results. Effects of different projection geometries of the LGSF has been discussed with modeling results. Comprehensive study of an ADC with dispersion model and development of a generic software are elaborated with experimental results. The concept of range gating the LGS along with laboratory test results are also incorporated. Towards the end, AO loop test results in the presence of artificial turbulence generated in the laboratory are presented.