Kedar Khare, Priyanka Lochab, Paramasivam Senthilkumaran

Orbital Angular Momentum States of Light (eBook, ePUB)

Propagation through atmospheric turbulence

• Format: ePub

Produktbeschreibung

Orbital angular momentum (OAM) states of light and structured light beams have received considerable attention in recent years in the context of free space communication (classical and quantum) and defence systems. These applications inherently require long range beam propagation through atmospheric turbulence which leads to degradation of beam quality. As one moves from research demonstrations to system implementation, the rigorous modelling of propagation of beams having designer amplitude, phase and polarization profiles through realistic atmospheric turbulence conditions becomes a critical task.

This book covers fundamentals such as the spiral phase quadrature transform, angular spectrum method for diffraction, OAM states of light, and structured beams containing polarization singularities. This is followed by detailed discussion of the theory of wave propagation through atmospheric turbulence including Born and Rytov approximations, random phase screen generation with appropriate spectral models as well as sub-harmonic components and the split step propagation method. The book concludes with recent developments on robust beam engineering using polarization singular beams. Pieces of computer simulation codes for turbulence propagation modelling are provided with annotations in the Appendix. This is a stand-alone reference material and is well suited to graduate students and researchers in optics and photonics.

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Produktdetails

• Verlag: Institute of Physics Publishing
• Seitenzahl: 150
• Erscheinungstermin: 21. Dezember 2020
• Englisch
• ISBN-13: 9780750322805
• Artikelnr.: 60787139

Autorenporträt

Kedar Khare is currently an Associate Professor in the Department of Physics, Indian Institute of Technology Delhi, India. His research interests include problems in computational optical imaging. In recent years he has been actively engaged in pursuing research work on quantitative phase imaging, Fourier phase retrieval, computational microscopy, diagnostic imaging, cryo-EM imaging and structured light propagation in turbulence.

Priyanka Lochab is currently a Research Associate in the Department of Physics, Indian Institute of Technology Delhi, India. Her research career in optics began in 2013 when she joined IIT Delhi as a graduate student. Her major research interests are singular optics, beam propagation through random media and computational imaging.

Paramasivam Senthilkumaran is currently working as a full Professor in the Department of Physics, Indian Institute of Technology Delhi, India. His research interests are optical beam shaping, optical phase singularities, Berry and Pancharatnam topological phases, fiber optics, holography, non-destructive testing techniques, shear interferometry, Talbot interferometry, speckle metrology and non-linear optics.