Paper 13355-70
Paper 13355-70
Wavefront corrections impacted by turbulence using beam modulation technique
28 January 2025 • 6:00 PM - 8:00 PM PST | Moscone West, Room 2003 (Level 2)
Abstract
A new technique aims to reduce turbulence effects using beam shaping. Initially, a turbulence-impacted vortex beam was shaped by passing a collimated Gaussian beam through a rotating Pseudo Random Phase Plate (PRPP) and a Vortex Phase Plate (VPP), forming Laguerre-Gaussian modes. The scintillation index was measured with a CCD. Comparative studies examined collimated, diverging, and converging beams at five points, using four LG modes and a Gaussian beam.
Presenter
Indian Institute of Space Science and Technology (India)
I am Shouvik Sadhukhan from Indian Institute of Space Science and Technology Thiruvananthapuram (IIST-Thiruvananthapuram, Kerala, India). Presently, I am pursuing my PhD as well as Project Assistantship in IIST-Thiruvananthapuram under supervision and guidance of Prof. Dr. C. S. Narayanamurthy (Joined in 2021). My present research topic is basically focused on optical imaging and holography. We have introduced different new types of geometric phases and are trying to apply them in optical imaging and holography as well as interferometry using different phase shift algorithms. We are also applying 3 steps to 2n steps all kinds of algorithms for phase retrieval works for Interferometry. We have focused on the Optical Metrological studies, Thin Film Characterization, birefringence studies, Classical Entanglement entropy modulation and Optical Microscopic Imaging for application purposes of our newly introduced geometric phases.