Download or read book Solitons in Photorefractive Media written by Glen William McCarthy and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Optical Spatial Solitons in Photorefractive Materials written by Aavishkar Katti and published by Springer Nature. This book was released on 2021-05-31 with total page 169 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights recent advances of optical spatial solitons in photorefractive materials ranging broadly from the coupling, modulation instability, effect of pyroelectricity, and the stability of photorefractive solitons, among other topics. Photorefractive solitons have been at the forefront of research because of their formation at low laser powers and unique saturable nonlinearity present in photorefractive materials which supports solitons in (2+1) D. There has been a spurt in research on photorefractive solitons recently, which has contributed to a greater understanding of the theoretical foundation of photorefractive solitons as also of their various interesting and practical applications. The book elucidates the diversity of photorefractive solitons and provides a good resource for students, researchers, and professionals in the area of nonlinear optics.
Download or read book Spatial Solutions in Photorefractive Media written by Mordechal Segev and published by . This book was released on 1992 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: Light solitons in space spatial soliton) have been under an intensive theoretical and experimental research in the last three decades. The solitons evolve from nonlinear changes in the refractive index of the material, due to the light intensity distribution. When the modulation of the index confines the light beam in such a way that diffraction is compensated for exactly, the beam becomes self-trapped, and is called a spatial soliton. The nonlinear effects, which are responsible to soliton formation, are in general Kerr-like effects, causing local index changes proportional to the local light power. The index changes needed for spatial solitons require high power densities, and often exceed 1MWatt/sq.cm. We present here a new type of solitons in space, generated by the photorefractive (PR) effect in the medium. The solitonic waveform modulates the refractive index due to the PR effect, compensates for the diffraction exactly, and causes the light beam to propagate with no spatial change. This specific index modulation is introduced by interference gratings between the pairs of the spatial components (which compose the light beam), that are translated into phase gratings by the PR effect. Since the efficiency of this effect is independent of absolute light intensity, our solitons can be generated even at very moderate light power densities. Moreover, the same solitonic waveform can propagate unchanged in the medium, at very high or very low light intensities.
Download or read book Spatial Solitons in Lossy Photorefractive Media written by Stephen Konstantine Kaladros and published by . This book was released on 1995 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nonlinear Optical Beam Propagation and Solitons in Photorefractive Media written by Bruno Crosignani and published by . This book was released on 1998 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Optical Solitons written by Yuri S. Kivshar and published by Academic Press. This book was released on 2003-06-12 with total page 557 pages. Available in PDF, EPUB and Kindle. Book excerpt: The current research into solitons and their use in fiber optic communications is very important to the future of communications. Since the advent of computer networking and high speed data transmission technology people have been striving to develop faster and more reliable communications media. Optical pulses tend to broaden over relatively short distances due to dispersion, but solitons on the other hand are not as susceptible to the effects of dispersion, and although they are subject to losses due to attenuation they can be amplified without being received and re-transmitted. This book is the first to provide a thorough overview of optical solitons. The main purpose of this book is to present the rapidly developing field of Spatial Optical Solitons starting from the basic concepts of light self-focusing and self-trapping. It will introduce the fundamental concepts of the theory of nonlinear waves and solitons in non-integrated but physically realistic models of nonlinear optics including their stability and dynamics. Also, it will summarize a number of important experimental verification of the basic theoretical predictions and concepts covering the observation of self-focusing in the earlier days of nonlinear optics and the most recent experimental results on spatial solitons, vortex solitons, and soliton interaction & spiraling. * Introduces the fundamental concepts of the theory of nonlinear waves and solitons through realistic models * Material is based on authors' years of experience actively working in and researching the field * Summarizes the most important experimental verification of the basic theories, predictions and concepts of this ever evolving field from the earliest studies to the most recent
Download or read book Spatial Solitons written by Stefano Trillo and published by Springer. This book was released on 2013-06-05 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: Solitary wave physics plays a significant role from modern optical physics to optical communication, optical switching and optical storage. This book gives an updated overview of optical solitons, as a reference and guide for advanced students and scientists working in the field.
Download or read book Nonlinear Optical Beam Propagation and Solitons in Photorefractive Media written by and published by . This book was released on 1998 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Photorefractive Spatial Solitons Fundamentals and Applications written by and published by . This book was released on 1999 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this program, we have studied, experimentally and theoretically, the fundamental properties of photorefractive spatial solitons and the features of the interactions between and among them. We brought the topic of photorefractive solitons to the very front of soliton science and of nonlinear optics. In our work, we have put much emphasis on studying properties and features that are universal to all solitons in nature, even to those in fields that are very remote from optics. We have discovered a family of entirely new solitons: Incoherent Solitons, which can exist in any non-instantaneous nonlinear media in nature. We have shown that solitons interacting in full 3D media manifest particle properties (such as conservation of angular momentum) which a decade ago were thought to be absurd with respect to solitons. Finally, we have demonstrated the feasibility of a list of applications that are unique to photorefractive solitons, the most important ones being (1) nonlinear frequency conversion in soliton-induced waveguides, and (2) fixing 2D solitons into the crystalline lattice of the nonlinear medium: Integrated Optics in 3D. At the beginning of this program, there were not more than 3-4 additional groups in the US studying optical spatial solitons, and not more than 10 world wide. Today, much of it following our work, optical spatial solitons have become a platform for studies of all soliton phenomena, and have attracted more than 50 groups world wide. The best evidence for that in the number of participants in the last Conference on Nonlinear Guided Waves and Their Applications, which was doubled between from the 1996 and 1998 conferences to the 1999 conference.
Download or read book Photorefractive Materials and Their Applications 1 written by Peter Günter and published by Springer. This book was released on 2006-04-09 with total page 431 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first volume of a set of three within the Springer Series in Optical Sciences, and is devoted to photorefractive effects, photorefractive materials, and their applications. Since the publication of our first two Springer books on Photorefractive Materials and Their Applications (Topics in Applied Physics, Vols. 61 and 62) almost 20 years ago, a lot of research has been done in this area. New and often expected effects have been discovered, theoretical models developed, known effects finally explained, and novel applications proposed. We believe that the field has now reached a high level of maturity, even if research continues in all areas mentioned above and with new discoveries arriving quite regularly. We therefore have decided to invite some of the top experts in the field to put together the state of the art in their respective fields. This after we had been encouraged to do so for more than ten years by the publisher, due to the fact that the former volumes were long out of print.
Download or read book Stability of Anisotropic Gap Solitons in Photorefractive Media written by Tobias Richter and published by . This book was released on 2008 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Soliton driven Photonics written by A.D. Boardman and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is ironic that the ideas ofNewton, which described a beam of light as a stream ofparticles made it difficult for him to explain things like thin film interference. Yet these particles, called 'photons', have caused the adjective 'photonic' to gain common usage, when referring to optical phenomena. The purist might argue that only when we are confronted by the particle nature of light should we use the word photonics. Equally, the argument goes on, only when we are face-to face with an integrable system, i. e. one that possesses an infinite number of conserved quantities, should we say soliton rather than solitary wave. Scientists and engineers are pragmatic, however, and they are happy to use the word 'soliton' to describe what appears to be an excitation that is humped, multi humped, or localised long enough for some use to be made of it. The fact that such 'solitons' may stick to each other (fuse) upon collision is often something to celebrate for an application, rather than just evidence that, after all, these are not really solitons, in the classic sense. 'Soliton', therefore, is a widely used term with the qualification that we are constantly looking out for deviant behaviour that draws our attention to its solitary wave character. In the same spirit, 'photonics' is a useful generic cover-all noun, even when 'electromagnetic theory' or 'optics' would suffice.
Download or read book Transverse Pattern Formation in Photorefractive Optics written by Cornelia Denz and published by Springer Science & Business Media. This book was released on 2003-09-22 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: Overview of current developments in nonlinear photorefractive optics. The book dicusses exciting discoveries, with special emphasis on transverse effects such as spatial soliton formation and interaction, spontaneous pattern formation and pattern competition in active feedback systems. Different aspects of potential applications, such as wave guiding in adaptive photorefractive solitons and techniques for pattern control for information processing, are also described.
Download or read book Modern Perspectives in Theoretical Physics written by K. S. Sreelatha and published by Springer Nature. This book was released on 2021-04-12 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights the review of articles in theoretical physics by the students of Professor K. Babu Joseph, as a Festschrift for his 80th Birthday. This book is divided into four sections based on the contributions of Babu Joseph and his students. The four sections are Cosmology, High Energy Physics, Mathematical Physics and Non-linear Dynamics and its applications.
Download or read book Photorefractive Effects and Materials written by David D. Nolte and published by Springer Science & Business Media. This book was released on 2013-11-27 with total page 494 pages. Available in PDF, EPUB and Kindle. Book excerpt: The photorefractive effect is now firmly established as one of the highest-sensitivity nonlinear optical effects, making it an attractive choice for use in many optical holographic processing applications. As with all technologies based on advanced materials, the rate of progress in the development of photorefractive applications has been principally limited by the rate at which breakthroughs in materials science have supplied better photorefractive materials. The last ten years have seen an upsurge of interest in photorefractive applications because of several advances in the synthesis and growth of new and sensitive materials. This book is a collection of many of the most important recent developments in photorefractive effects and materials. The introductory chapter, which provides the necessary tools for understanding a wide variety of photorefractive phenomena, is followed by seven contributed chapters that offer views of the state-of-the-art in several different material systems. The second chapter represents the most detailed study to date on the growth and photorefractive performance of BaTi03, one of the most important photorefractive ferroelectrlcs. The third chapter describes the process of permanently fixing holographic gratings in ferroelectrics, important for volumetric data storage with ultra-high data densities. The fourth chapter describes the discovery and theory of photorefractive spatial solitons. Photorefractive polymers are an exciting new class of photo refractive materials, described in the fifth chapter. Polymers have many advantages, primarily related to fabrication, that could promise a breakthrough to the marketplace because of ease and low-cost of manufacturing.
Download or read book Optical Waveguides written by María L. Calvo and published by CRC Press. This book was released on 2018-10-03 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although the theory and principles of optical waveguides have been established for more than a century, the technologies have only been realized in recent decades. Optical Waveguides: From Theory to Applied Technologies combines the most relevant aspects of waveguide theory with the study of current detailed waveguiding technologies, in particular, photonic devices, telecommunication applications, and biomedical optics. With self-contained chapters written by well-known specialists, the book features both fundamentals and applications. The first three chapters examine the theoretical foundations and bases of planar optical waveguides as well as critical optical properties such as birefringence and nonlinear optical phenomena. The next several chapters focus on contemporary waveguiding technologies that include photonic devices and telecommunications. The book concludes with discussions on additional technological applications, including biomedical optical waveguides and the potential of neutron waveguides. As optical waveguides play an increasing part in modern technology, photonics will become to the 21st century what electronics were to the 20th century. Offering both novel insights for experienced professionals and introductory material for novices, this book facilitates a better understanding of the new information era—the photonics century.
Download or read book Controlling Light in Optically Induced Photonic Lattices written by Bernd Terhalle and published by Springer Science & Business Media. This book was released on 2011-01-28 with total page 111 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discrete periodic structures play an important role in physics, and have opened up an exciting new area of investigation in recent years. Questions relating to the control of light in such structures still represent a major challenge. It is this highly active field that is addressed in the present thesis. Using the model system of a photorefractive nonlinearity that allows one to simultaneously create and control photonic lattices by light, the author obtains a comprehensive picture of the control of nonlinear and quantum optics phenomena in photonic lattices. He describes and demonstrates experimentally for the first time resonant transitions in two-dimensional hexagonal lattices, including Rabi oscillations and Landau-Zener tunneling, as well as the direct control and exploitation of these transitions. A particular highlight of this thesis is the study of soliton-cluster switching and control of Zener tunneling.
