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Solitons in Photorefractive Media

Solitons in Photorefractive Media
Author: Glen William McCarthy
Publisher:
Total Pages:
Release: 2006
Genre: Photorefractive materials
ISBN:

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Optical Spatial Solitons in Photorefractive Materials

Optical Spatial Solitons in Photorefractive Materials
Author: Aavishkar Katti
Publisher: Springer Nature
Total Pages: 169
Release: 2021-05-31
Genre: Science
ISBN: 9811625506

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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. ​


Spatial Solutions in Photorefractive Media

Spatial Solutions in Photorefractive Media
Author: Mordechal Segev
Publisher:
Total Pages: 4
Release: 1992
Genre:
ISBN:

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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.


Optical Solitons

Optical Solitons
Author: Yuri S. Kivshar
Publisher: Academic Press
Total Pages: 557
Release: 2003-06-12
Genre: Technology & Engineering
ISBN: 0080538096

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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


Spatial Solitons

Spatial Solitons
Author: Stefano Trillo
Publisher: Springer
Total Pages: 468
Release: 2013-06-05
Genre: Science
ISBN: 354044582X

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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.


Photorefractive Spatial Solitons: Fundamentals and Applications

Photorefractive Spatial Solitons: Fundamentals and Applications
Author:
Publisher:
Total Pages: 0
Release: 1999
Genre:
ISBN:

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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.


Photorefractive Materials and Their Applications 1

Photorefractive Materials and Their Applications 1
Author: Peter Günter
Publisher: Springer
Total Pages: 431
Release: 2006-04-09
Genre: Science
ISBN: 0387251928

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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.