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The Proceedings of First International Conference on Opto-Electronics and Applied Optics 2014, IEM OPTRONIX 2014 presents the research contributions presented in the conference by researchers from both India and abroad. Contributions from established scientists as well as students are included. The book is organized to enable easy access to various topics of interest. The first part includes the Keynote addresses by Phillip Russell, Max Planck Institute of the Light Sciences, Erlangen, Germany and Lorenzo Pavesi, University of Trento, Italy. The second part focuses on the Plenary Talks given by eminent scientists, namely, Azizur Rahman, City University London, London; Bishnu Pal, President, The Optical Society of India; Kamakhya Ghatak, National Institute of Technology, Agartala; Kehar Singh, Former Professor, India Institute of Technology Delhi; Mourad Zghal, SUPCOM, University of Carthage, Tunisia; Partha Roy Chaudhuri, IIT Kharagpur; S K. Bhadra, CSIR-Central Glass and Ceramic Research Institute, Kolkata; Sanjib Chatterjee, Raja Ramanna Centre for Advanced Technology, Indore; Takeo Sasaki, Tokyo University, Japan; Lakshminarayan Hazra, Emeritus Professor, University of Calcutta, Kolkata; Shyam Akashe, ITM University, Gwalior and Vasudevan Lakshminarayanan, University of Waterloo, Canada. The subsequent parts focus on topic-wise contributory papers in Application of Solar Energy; Diffraction Tomography; E.M. Radiation Theory and Antenna; Fibre Optics and Devices; Photonics for Space Applications; Micro-Electronics and VLSI; Nano-Photonics, Bio-Photonics and Bio-Medical Optics; Non-linear Phenomena and Chaos; Optical and Digital Data and Image Processing; Optical Communications and Networks; Optical Design; Opto-Electronic Devices; Opto-Electronic Materials and Quantum Optics and Information Processing.
All current methods of secure communication such as public-key cryptography can eventually be broken by faster computing. At the interface of physics and computer science lies a powerful solution for secure communications: quantum cryptography. Because eavesdropping changes the physical nature of the information, users in a quantum exchange can easily detect eavesdroppers. This allows for totally secure random key distribution, a central requirement for use of the one-time pad. Since the one-time pad is theoretically proven to be undecipherable, quantum cryptography is the key to perfect secrecy. Quantum Communications and Cryptography is the first comprehensive review of the past, present, and potential developments in this dynamic field. Leading expert contributors from around the world discuss the scientific foundations, experimental and theoretical developments, and cutting-edge technical and engineering advances in quantum communications and cryptography. The book describes the engineering principles and practical implementations in a real-world metropolitan network as well as physical principles and experimental results of such technologies as entanglement swapping and quantum teleportation. It also offers the first detailed treatment of quantum information processing with continuous variables. Technologies include both free-space and fiber-based communications systems along with the necessary protocols and information processing approaches. Bridging the gap between physics and engineering, Quantum Communications and Cryptography supplies a springboard for further developments and breakthroughs in this rapidly growing area.
This title provides a comprehensive, unified tutorial covering the most recent advances in the emerging technology of free-space optics (FSO), a field in which interest and attention continue to grow along with the number of new challenges. This book is intended as an all-inclusive source to serve the needs of those who require information about the fundamentals of FSO, as well as up-to-date advanced knowledge of the state-of-the-art in the technologies available today. This text is intended for graduate students, and will also be useful for research scientists and engineers with an interest in the field. FSO communication is a practical solution for creating a three dimensional global broadband communications grid, offering bandwidths far beyond what is possible in the Radio Frequency (RF) range. However, the attributes of atmospheric turbulence and scattering impose perennial limitations on availability and reliability of FSO links. From a systems point-of-view, this groundbreaking book provides a thorough understanding of channel behavior, which can be used to design and evaluate optimum transmission techniques that operate under realistic atmospheric conditions. Topics addressed include: • FSO Physical and Statistical Models: Single/Multiple Inputs/Outputs • Understanding FSO: Theory and Systems Analysis • Modulation and Coding for Free-Space Optical Channels • Atmospheric Mitigation and Compensation for FSO Links • Non-line-of-sight (NLOS) Ultraviolet and Indoor FSO Communications • FSO Platforms: UAV and Mobile • Retromodulators for Free Space Data links • Hybrid Optical RF Communications • Free-space and Atmospheric Quantum Communications • Other related topics: Chaos-based and Terahertz (THz) FSO Communications
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In the last years, optical metrology has emerged as a discipline in the optical science and engineering. This occurred with the results achieved in engineering and technology, which can be applied in a variety of the industrial process. Optical testing supports that optical metrology becomes essential tools in modern industry and laboratory process. Optical methods of measurement have provided many of the essential techniques in quality control and industrial inspection. This current volume is a report of the recent contributions of a group of us who have been working together in the metrology department of the Centro de Investigaciones en Optica in Mexico. The main topics of metrology described in this volume includes, fringe pattern processing, speckle pattern interferometry, computer vision, velocimetry of paticles, vibrations measurement and pattern classification. In this chapter it describes a measurement technique based on the phenomenon known as coherent light speckle. The major feature of electronic speckle techniques is that they enable real-time correlation fringes to be displayed directly on a monitor without recourse to any form of photographic processing, optical spatial filtering, or plate relocation. No dark room is required for processing photo materials. A computer is used to control the entire process, to calculate the displacement, and to present results in graphical form. It is well known that when an optically rough surface is illuminated by coherent light speckles can be observed and imaged on a detector. Changes in the speckle pattern due to displacement and deformation of the diffusing surface can be used within a double-exposure metrology approach [6]. Indeed, for objects with optically rough surfaces, Electronic Speckle Pattern Interferometry (ESPI) [7] is one of the most suitable method for high sensitivity measurements of out-of-plane and in-plane displacement components [8,1], strain [9,10], and vibration [11,12]. Moreover, since nowadays the signal can be easily acquired in a digital form, various image-processing techniques could be applied to automatically process ESPI interferograms. The deformation field in the form of correlation fringes is obtained by subtracting or adding two images of the object in the reference and in the deformed configuration, respectively. Among the variety of techniques developed for phase retrieval, the Fast Fourier Transform Method proposed by Takeda [13], the Phase-Shifting [7] and Spatial Synchronous Detection [7] methods are the most widely accepted. It will be present an optical setup that can be switched to produce in-plane and out-of-plane sensitivity interferometers (we call it in the rest of the presentation System A, for brevity). It is depicted an ESPI arrangement with three illumination beams and one reference beam too (this it will named System B). The phase step algorithm was used to calculate a phase value at each pixel from the intensities. Both optical systems are limited for stationary and repeatable displacements fields. A method for simultaneously measuring whole field in-plane displacements by using optical fiber and Fast Fourier Transform Method is presented to transient or non-repeatable events. Examples of applications are presented such as fatigue detection and visualization of vibration modes.
Examining classic theories, experimental methods, and practical formulas for exploration of the core topics in nonlinear optics, the second edition of this acclaimed text was extensively revised to reflect recent advances in the analysis and modification of material properties for application in frequency conversion, optical switching and limiting, multiphoton absorption, and electro-optic effects. Handbook of Nonlinear Optics, Second Edition contains additional chapters on ultrafast characterization techniques, laser flash photolysis, and the electro-optic effect as well as expanded coverage of nonlinear optics in fibers and pulsed two-beam coupling.
With 300 figures, tables, and equations, this book presents a unified approach to image quality research and modeling. The author discusses the results of different, calibrated psychometric experiments can be rigorously integrated to construct predictive software using Monte Carlo simulations and provides numerous examples of viable field applications for product design and verification of modeling predictions. He covers perceptual measurements for the assessment of individual quality attributes and overall quality, explores variation in scene susceptibility, observer sensitivity, and preference, and includes methods of analysis for testing and refining metrics based on psychometric data.

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