Optical Vortex And Poincar Analysis For Biophysical Dynamics
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Optical Vortex And Poincar Analysis For Biophysical Dynamics
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Author :
language : en
Publisher:
Release Date : 2019
Optical Vortex And Poincar Analysis For Biophysical Dynamics written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019 with categories.
Abstract : Coherent light - such as that from a laser - on interaction with biological tissues, undergoes scattering. This scattered light undergoes interference and the resultant field has randomly added phases and amplitudes. This random interference pattern is known as speckles, and has been the subject of multiple applications, including imaging techniques. These speckle fields inherently contain optical vortices, or phase singularities. These are locations where the intensity (or amplitude) of the interference pattern is zero, and the phase is undefined. In the research presented in this dissertation, dynamic speckle patterns were obtained through computer simulations as well as laboratory setups involving scattering from phantoms and animal tissues. Optical vortices were tracked within these patterns. Novel techniques were applied to relate scattering media dynamics with the temporal evolution of the speckle fields and the optical vortex locations. Parameters, such as optical vortex trail lengths, mobility of optical vortices and charge separation between different types of vortices were introduced and calculated. Mathematical formulations, namely Poincaré descriptors, were employed to analyze the statistics of speckle intensity and optical vortex dynamics. A brief review of the advancements in the understanding and detection of optical vortices is presented. This is followed by the theory behind Poincaré analysis. It is concluded that Poincaré descriptors can be used to characterize the correlation in a data series. Speckle patterns with different dynamic behaviors - such as Brownian and Lorentzian modes of decorrelation between consecutive frames, at varying rates - were studied. It was noted that measuring the optical vortex parameters in a dynamically evolving field, provided insights into the decorrelation characteristics of the scattering medium. As speckle size is a statistical measure of the intensity variation in the field, the use of Poincaré descriptors to estimate speckle size is demonstrated. Additionally, these descriptors differentiate between short- and long-range orders in data. Laser speckle images obtained from flow in fluid phantoms and animal tissues indicated that Poincaré analysis provides an alternate method of quantifying flow.
Vortex Dynamics And Optical Vortices
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Author : Hector Perez-De-Tejada
language : en
Publisher: BoD – Books on Demand
Release Date : 2017-03-01
Vortex Dynamics And Optical Vortices written by Hector Perez-De-Tejada and has been published by BoD – Books on Demand this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-03-01 with Science categories.
The contents of the book cover a wide variety of topics related to the analysis of the dynamics of vortices and describe the results of experiments, computational modeling and their interpretation. The book contains 13 chapters reaching areas of physics in vortex dynamics and optical vortices including vortices in superfluid atomic gases, vortex laser beams, vortex-antivortex in ferromagnetic hybrids, and optical vortices illumination in chiral nanostructures. Also, discussions are presented on particle motion in vortex flows, on the simulation of vortex-dominated flows, on vortices in saturable media, on achromatic vortices, and on ultraviolet vortices. Fractal light vortices, coherent vortex beams, together with vortices in electric dipole radiation, and spin wave dynamics in magnetic vortices are examined as well.
Vortex Dynamics And Optical Vortices
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Author :
language : en
Publisher:
Release Date : 19??
Vortex Dynamics And Optical Vortices written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 19?? with categories.
Recent Advances In Multidisciplinary Applied Physics
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Author : Antonio Mendez-Vilas
language : en
Publisher: Elsevier
Release Date : 2005-09-28
Recent Advances In Multidisciplinary Applied Physics written by Antonio Mendez-Vilas and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005-09-28 with Science categories.
The 1st International Meeting on Applied Physics (APHYS-2003) succeeded in creating a new international forum for applied physics in Europe, with specific interest in the application of techniques, training, and culture of physics to research areas usually associated with other scientific and engineering disciplines.This book contains a selection of peer-reviewed papers presented at APHYS-2003, held in Badajoz (Spain), from 15th to 18th October 2003, which included the following Plenary Lectures:* Nanobiotechnology - Interactions of Cells with Nanofeatured Surfaces and with Nanoparticles* Radiation Protection of Nuclear Workers - Ethical Issues* Chaotic Data Encryption for Optical Communications
Polarization Of Light
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Author : Maria Chekhova
language : en
Publisher: Walter de Gruyter GmbH & Co KG
Release Date : 2021-03-22
Polarization Of Light written by Maria Chekhova and has been published by Walter de Gruyter GmbH & Co KG this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-03-22 with Science categories.
This book starts with the description of polarization in classical optics, including also a chapter on crystal optics, which is necessary to understand the use of nonlinear crystals. In addition, spatially non-uniform polarization states are introduced and described. Further, the role of polarization in nonlinear optics is discussed. The final chapters are devoted to the description and applications of polarization in quantum optics and quantum technologies.
Mathematical Contributions To The Theory Of Evolution
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Author : Karl Pearson
language : en
Publisher:
Release Date : 1904
Mathematical Contributions To The Theory Of Evolution written by Karl Pearson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1904 with Biometry categories.
Quantum Evolution
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Author : Johnjoe McFadden
language : en
Publisher: W. W. Norton & Company
Release Date : 2002
Quantum Evolution written by Johnjoe McFadden and has been published by W. W. Norton & Company this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Science categories.
Marrying physics and biology, McFadden theorizes that evolution may not be random but directed, and that quantum mechanics endows living organisms with the ability to initiate specific actions, including new mutations. Illustrations.
Computational Soft Matter From Synthetic Polymers To Proteins
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Author : Norbert Attig
language : en
Publisher:
Release Date : 2004
Computational Soft Matter From Synthetic Polymers To Proteins written by Norbert Attig and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with categories.
Mathknow
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Author : Alfio Quarteroni
language : en
Publisher: Springer Science & Business Media
Release Date : 2009-12-24
Mathknow written by Alfio Quarteroni and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-12-24 with Mathematics categories.
Mathematics forms bridges between knowledge, tradition, and contemporary life. The continuous development and growth of its many branches, both classical and modern, permeates and fertilizes all aspects of applied science and technology, and so has a vital impact on our modern society. The book will focus on these aspects and will benefit from the contribution of several world-famous scientists from mathematics and related sciences, such as: Ralph Abraham, Andrew Crumey, Peter Markowich, Claudio Procesi, Clive Ruggles, Ismail Serageldin, Amin Shokrollahi, Tobias Wallisser.
Wave Optics
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Author : Subhasish Dutta Gupta
language : en
Publisher: CRC Press
Release Date : 2015-10-15
Wave Optics written by Subhasish Dutta Gupta and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-10-15 with Computers categories.
Wave Optics: Basic Concepts and Contemporary Trends combines classical optics with some of the latest developments in the field to provide readers with an appreciation and understanding of advanced research topics. Requiring only a basic knowledge of electromagnetic theory and mathematics, this book: Covers the fundamentals of wave optics, such as oscillations, scalar and vector waves, reflection and refraction, polarization, interference and diffraction, and rays and beams Focuses on concepts related to advances in negative materials and superresolution, reflectionless potentials, plasmonics, spin-orbit interaction, optical tweezers, Pendry lensing, and more Includes MATLAB® codes for specific research problems, offering readers a behind-the-scenes look at the computational practices as well as an opportunity to extend the research Drawing parallels with corresponding quantum problems whenever possible to broaden the horizon and outlook, Wave Optics: Basic Concepts and Contemporary Trends gives readers a taste of what is happening in modern optics today and shows why wave optics remains one of the most interesting and challenging areas of physics.