TY - BOOK AU - Khare,Kedar AU - Lochab,Priyanka AU - Senthilkumaran,Paramasivam ED - Institute of Physics (Great Britain), TI - Orbital angular momentum states of light: propagation through atmospheric turbulence T2 - [IOP release $release] SN - 9780750359597 AV - QC446.3.A54 K536 2024eb PY - 2024///] CY - Bristol [England] (Temple Circus, Temple Way, Bristol BS1 6HG, UK) PB - IOP Publishing KW - Angular momentum KW - Quantum optics KW - Optical physics KW - bicssc KW - TECHNOLOGY & ENGINEERING / Optics KW - bisacsh N1 - "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 transform; 3. 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 fields; 4. Near core structure of a propagating optical vortex -- 4.1. Vortex propagation using the angular spectrum method -- 4.2. Phase dip near vortex core; 5. 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 basis; 6. 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 beams; 7. 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 approach; 8. 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 parameters; 9. 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 beams; 10. 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; Graduate students, defence research, free space communication; Also available in print N2 - 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 UR - https://iopscience.iop.org/book/mono/978-0-7503-5959-7 ER -