Orbital angular momentum states of light :propagation through atmospheric turbulence /

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"Version: 20241201"--Title page verso.Includes bibliographical references.1. Introduction -- 2. Mathematical preliminaries -- 2.1. Fourier transform basics -- 2.2. Review of random processes theory -- 2.3. Simulating a random process with known spectral density -- 2.4. Complex signal representation -- 2.5. Spiral phase quadrature transform3. The angular spectrum method -- 3.1. Wave equation -- 3.2. The angular spectrum formalism -- 3.3. Sampling considerations and usage of fast Fourier transform routines -- 3.4. Numerical propagation of fields in free space -- 3.5. Propagation of partially spatially coherent light fields4. Near core structure of a propagating optical vortex -- 4.1. Vortex propagation using the angular spectrum method -- 4.2. Phase dip near vortex core5. Orbital angular momentum states of light -- 5.1. Solutions of paraxial wave equation with phase singularities -- 5.2. Orbital angular momentum of LG modes -- 5.3. Topological charge of OAM carrying beams -- 5.4. Generation of OAM beams -- 5.5. Detection of phase singularities -- 5.6. Propagation dynamics of beams embedded with vortices -- 5.7. OAM modes as a communication basis6. Introduction to polarization singularities -- 6.1. Polarization state of light beams -- 6.2. Decomposition of a general SOP -- 6.3. Singularities in optical fields -- 6.4. Stokes phase distribution and azimuth distribution -- 6.5. Generation and detection of polarization singularities -- 6.6. Applications of polarization singular beams7. Theory of wave propagation in a turbulent medium -- 7.1. Electromagnetic wave equation in a random medium -- 7.2. Description of the refractive index fluctuations in the atmosphere -- 7.3. Classical perturbation methods -- 7.4. Extended Huygens-Fresnel integral approach8. Numerical simulation of laser beam propagation through turbulence -- 8.1. Need for specialized numerical methods for beam propagation -- 8.2. Split-step propagation method -- 8.3. Phase screen generation -- 8.4. Other methods for generating random phase screens -- 8.5. Illustration of propagation of OAM states through turbulence -- 8.6. Beam quality parameters9. Robust laser beam engineering using complementary diffraction -- 9.1. Beam engineering using polarization and OAM -- 9.2. Complementary diffraction due to (0,1) OAM states -- 9.3. Beam quality assessment using instantaneous signal-to-noise ratio -- 9.4. Speckle diversity -- 9.5. Long-range propagation of converging polarization singularities through atmospheric turbulence -- 9.6. Irradiance probability distribution due to engineered beams -- 9.7. Higher order engineered beams10. Speckle in structured light with applications -- 10.1. Speckle phenomena in optics -- 10.2. Intensity and phase statistics of scalar speckle -- 10.3. Speckle in polarization structured light -- 10.4. Texture classification : gray-level co-occurence matrix -- 10.5. Novel applications of speckle texture -- Appendix A. Annotated computer code for beam propagation through turbulence.Full-text restricted to subscribers or individual document purchasers.This book provides an in-depth introduction to modelling of long-range propagation of orbital angular momentum (OAM) modes as well as more general structured light beams through atmospheric turbulence. Starting with the angular spectrum method for diffraction and description of structured light states, the book discusses the technical details related to wave propagation through atmospheric turbulence. The review of historical as well as more recent ideas in this topical area, along with computer simulation codes, makes this book a useful reference to researchers and optical engineers interested in developing and testing of free-space applications of OAM states of light. Part of IOP Series in Advances in Optics, Photonics and Optoelectronics.Graduate students, defence research, free space communication.Also available in print.Mode of access: World Wide Web.System requirements: Adobe Acrobat Reader, EPUB reader, or Kindle reader.Kedar Khare is currently a Professor in the Optics & Photonics Centre and Department of Physics, Indian Institute of Technology Delhi, India. His research interests include problems in computational optical imaging and structured light. 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 an Assistant Professor at the Indira Gandhi Delhi Technical University for Women. 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 Professor in the Optics & Photonics Centre and Department of Physics, Indian Institute of Technology Delhi, India. His research interests include areas such as 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.Title from PDF title page (viewed on January 17, 2025).

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Call Number

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Publisher

: .,

Collation

1 online resource (various pagings) :illustrations (some color).

Language

English

ISBN/ISSN

9780750359597

Classification

535.15

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-

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Edition

Second edition.

Subject(s)

Optical physics.
TECHNOLOGY & ENGINEERING / Optics.
Quantum optics.
Angular momentum.

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Statement of Responsibility

Kedar Khare, Priyanka Lochab, Paramasivam Senthilkumaran.

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