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.
Download or read book Caustic Light in Nonlinear Photonic Media written by Alessandro Zannotti and published by Springer Nature. This book was released on 2020-09-26 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: Caustics are natural phenomena, forming light patterns in rainbows or through drinking glasses, and creating light networks at the bottom of swimming pools. Only in recent years have scientists started to artificially create simple caustics with laser light. However, these realizations have already contributed to progress in advanced imaging, lithography, and micro-manipulation. In this book, Alessandro Zannotti pioneers caustics in many ways, establishing the field of artificial caustic optics. He employs caustic design to customize high-intensity laser light. This is of great relevance for laser-based machining, sensing, microscopy, and secure communication. The author also solves a long standing problem concerning the origin of rogue waves which appear naturally in the sea and can have disastrous consequences. By means of a far-reaching optical analogy, he identifies scattering of caustics in random media as the origin of rogue waves, and shows how nonlinear light-matter interaction increases their probability.
Download or read book Light Induced Photonic Lattices and Soliton Based Signaling and Navigation written by and published by . This book was released on 2005 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: This grant support from the Army Research Office (though 2004 DoD Instrumentation and Research Support Program for HBCU/MIs) has been used for acquisition of equipment to enhance nonlinear optics research and optics education programs at San Francisco State University (SFSU). The primary objective of the proposed project is to study optically-induced photonic lattices and discrete-solitons based on partially incoherent light, and to explore the possibility of using discrete solitons as information carriers for soliton-based switching, routing, and navigation. Mother objective is to promote education and research of students at San Francisco State University, one of the national HBCU/MIs., in the fields of physical sciences and engineering. As reported below, the work proposed in this project has been successfully completed, with more than 10 referred papers published during the project year which has credited ARO, and about a dozen students have participated in this project. Our work has been featured in Optics & Photonic News, Physics Today and Technology Research News.
Download or read book Structured Singular Light Fields written by Eileen Otte and published by Springer Nature. This book was released on 2020-12-21 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: Structured singular light is an ubiquitous phenomenon. It is not only created when light refracts at a water surface but can also be found in the blue daytime sky. Such light fields include a spatially varying amplitude, phase, or polarization, enabling the occurrence of optical singularities. As structurally stable units of the light field, these singularities are particularly interesting since they determine its topology. In this excellent book, the author presents a pioneering study of structured singular light, thereby contributing many original approaches. Especially in the field of polarization and its rich number of different types of singularities the book defines and drives a completely new field. The work demonstrates how to control complex polarization singularity networks and their propagation. Additionally, the author pioneers tightly focusing vectorial beams, also developing an urgently needed detection scheme for three-dimensional nanoscale polarization structures. She also studies classical spatial entanglement using structured light, introducing entanglement beating and paraxial spin-orbit-coupling. The book is hallmarked by its comprehensive and thorough way of describing a plethora of different approaches to structure light by amplitude, phase and polarization, as well as the important role of optical singularities.
Download or read book Nonlinearities in Periodic Structures and Metamaterials written by Cornelia Denz and published by Springer. This book was released on 2010-03-11 with total page 299 pages. Available in PDF, EPUB and Kindle. Book excerpt: Optical information processing of the future is associated with a new generation of compact nanoscale optical devices operating entirely with light. Moreover, adaptive features such as self-guiding, reconfiguration and switching become more and more important. Nonlinear devices offer an enormous potential for these applications. Consequently, innovative concepts for all-optical communication and information technologies based on nonlinear effects in photonic-crystal physics and nanoscale devices as metamaterials are of high interest. This book focuses on nonlinear optical phenomena in periodic media, such as photonic crystals, optically-induced, adaptive lattices, atomic lattices or metamaterials. The main purpose is to describe and overview new physical phenomena that result from the interplay between nonlinearities and structural periodicities and is a guide to actual and future developments for the expert reader in optical information processing, as well as in the physics of cold atoms in optical lattices.
Download or read book Photorefractive Effects Materials and Devices written by and published by . This book was released on 2005 with total page 860 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Wave and Spectral Singularities in Photonic Lattices written by Daniel Leykam and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Paraxial light propagation in media with a periodically modulated refractive index - photonic lattices - shares many similarities with condensed matter and quantum systems, such as electron dynamics in crystals, Bose-Einstein condensates in optical lattices, and polaritons in structured microcavities. Analogies between these different physical settings are both fundamentally interesting and have practical applications, providing novel ways to control the flow of light in optical devices. For example, the concept of a photonic band gap was inspired by electronic band gaps in semiconductors. Following seminal advances in condensed matter physics in the past decade including the isolation of graphene and the discovery of topological insulators, it is now crucially important to explore the opportunities offered by photonic analogues of these exotic systems. This thesis studies theoretically and experimentally the linear and nonlinear singular optics of photonic lattices, with emphasis on the interplay between wave singularities including optical vortices, and singularities in their energy-momentum spectrum such as conical intersections and flat bands. Beginning with ring lattices governed by the discrete nonlinear Schrodinger equation, we study in detail the existence, stability, and nonlinear dynamics of discrete vortex solitons, establishing novel mechanisms for all-optical switching of their topological charge, including the use of a parity time-symmetric defect with balanced gain and loss to discriminate between left- and right-handed vortices. We demonstrate experimentally a power-controlled vortex switch in a ring lattice optically-induced in a photorefractive crystal. Next we study connections between optical vortices, orbital angular momentum, and conical intersections. We show analytically that the orbital angular momentum of light is sensitive to the Bloch bands' Berry curvature and the conical intersection's pseudospin, confirming this result with numerical simulations of wavepacket propagation in honeycomb and kagome lattices. We present a detailed study of an integer pseudospin conical intersection appearing in the Lieb lattice, focusing on how its additional flat band influences linear and nonlinear conical diffraction, before verifying our predictions experimentally in a femtosecond laser-written lattice in fused silica glass. Generalising the Lieb lattice to other flat band lattices, we examine the important question of their robustness to disorder within the Anderson model of localisation. The singular, divergent flat band density of states leads to sensitivity to perturbations such as disorder, resulting in anomalous scaling of the Anderson localisation length and heavy-tailed linear and nonlinear transport statistics which we explain using an analogy with Fano resonances. We find correlated disorder can transform the singular density of states into weaker square root or logarithmic singularities. Finally, we analyse spontaneous parametric down-conversion in one dimensional lattices with nontrivial topology, revealing how their spectral winding influences the quantum correlations of generated photon pairs via destructive interference and edge modes.
Download or read book Coherent Control of Four Wave Mixing written by Yanpeng Zhang and published by Springer Science & Business Media. This book was released on 2011-05-30 with total page 419 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Coherent Control of Four-Wave Mixing" discusses the frequency, temporal and spatial domain interplays of four-wave mixing (FWM) processes induced by atomic coherence in multi-level atomic systems. It covers topics in five major areas: the ultrafast FWM polarization beats due to interactions between multi-color laser beams and multi-level media; coexisting Raman-Rayleigh-Brillouin-enhanced polarization beats due to color-locking noisy field correlations; FWM processes with different kinds of dual-dressed schemes in ultra-thin, micrometer and long atomic cells; temporal and spatial interference between FWM and six-wave mixing (SWM) signals in multi-level electromagnetically induced transparency (EIT) media; spatial displacements and splitting of the probe and generated FWM beams, as well as the observations of gap soliton trains, vortex solitons, and stable multicomponent vector solitons in the FWM signals. The book is intended for scientists, researchers, advanced undergraduate and graduate students in Nonlinear Optics. Dr. Yanpeng Zhang is a professor and Zhiqiang Nie is a Ph. D. student at the Key Laboratory for Physical Electronics and Devices of the Ministry of Education, Xi'an Jiaotong University, China. Dr. Min Xiao is a professor of physics at the University of Arkansas, Fayetteville, U.S.A.
Download or read book Progress in Optics written by and published by Elsevier. This book was released on 2009-01-06 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the fourty-seven years that have gone by since the first volume of Progress in Optics was published, optics has become one of the most dynamic fields of science. The volumes in this series which have appeared up to now contain more than 300 review articles by distinguished research workers, which have become permanent records for many important developments. - Backscattering and Anderson localization of light - Advances in oliton manipulation in optical lattices - Fundamental quantum noise in optical amplification - Invisibility cloaks
Download or read book Recent Advances in Functional Materials and Devices written by Saluru Baba Krupanidhi and published by Springer Nature. This book was released on 2023-11-20 with total page 317 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book presents the select proceedings of 2nd International Conference on Advanced Functional Materials and Devices (AFMD-2023). It covers the latest research in the area of functional materials. Various topics covered in this book include 2D materials, biomaterials, materials for environmental studies, DFT and solar simulation of materials, perovskite and double perovskite materials, luminescent materials, smart materials, materials for energy conversion and storage, smart materials, advanced functional materials, polymeric materials, composites, liquid crystals, materials for sustainable development, nanomaterials and thin films, smart devices and quantum dots synthesis technique, and characterization tools with application in smart devices. This book is for researchers and professionals working on various functional materials for device applications.
Download or read book Progress in Optics written by Emil Wolf and published by Elsevier. This book was released on 2009-07-20 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the forty-eight years that have gone by since the first volume of Progress in Optics was published, optics has become one of the most dynamic fields of science. The volumes in this series which have appeared up to now contain more than 300 review articles by distinguished research workers, which have become permanent records for many important developments. 3D optical microscopy Transformation optics and geometry of light Photorefractive solitons Stimulated scattering effects Optical vortices and polarization singularities Quantum feedforward control of light
Download or read book All optical Solition Control in Photonic Lattices written by Zhiyong Xu and published by . This book was released on 2007 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nonlinear Photonics and Novel Optical Phenomena written by Zhigang Chen and published by Springer. This book was released on 2012-06-27 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nonlinear Photonics and Novel Optical Phenomena contains contributed chapters from leading experts in nonlinear optics and photonics, and provides a comprehensive survey of fundamental concepts as well as hot topics in current research on nonlinear optical waves and related novel phenomena. The book covers self-accelerating airy beams, integrated photonics based on high index doped-silica glass, linear and nonlinear spatial beam dynamics in photonic lattices and waveguide arrays, the theory of polariton solitons in semiconductor microcavities, and Terahertz waves.
Download or read book Nonlinear Dynamics of Nanosystems written by Günter Radons and published by John Wiley & Sons. This book was released on 2010-01-12 with total page 475 pages. Available in PDF, EPUB and Kindle. Book excerpt: A discussion of the fundamental changes that occur when dynamical systems from the fields of nonlinear optics, solids, hydrodynamics and biophysics are scaled down to nanosize. The authors are leading scientists in the field and each of their contributions provides a broader introduction to the specific area of research. In so doing, they include both the experimental and theoretical point of view, focusing especially on the effects on the nonlinear dynamical behavior of scaling, stochasticity and quantum mechanics. For everybody working on the synthesis and integration of nanoscopic devices who sooner or later will have to learn how to deal with nonlinear effects.
Download or read book Lecture Notes on Turbulence and Coherent Structures in Fluids Plasmas and Nonlinear Media written by Michael Shats and published by World Scientific. This book was released on 2006 with total page 397 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is based on the lectures delivered at the 19th Canberra International Physics Summer School held at the Australian National University in Canberra (Australia) in January 2006.The problem of turbulence and coherent structures is of key importance in many fields of science and engineering. It is an area which is vigorously researched across a diverse range of disciplines such as theoretical physics, oceanography, atmospheric science, magnetically confined plasma, nonlinear optics, etc. Modern studies in turbulence and coherent structures are based on a variety of theoretical concepts, numerical simulation techniques and experimental methods, which cannot be reviewed effectively by a single expert.The main goal of these lecture notes is to introduce state-of-the-art turbulence research in a variety of approaches (theoretical, numerical simulations and experiments) and applications (fluids, plasmas, geophysics, nonlinear optical media) by several experts. A smooth introduction is presented to readers who are not familiar with the field, while reviewing the most recent advances in the area. This collection of lectures will provide a useful review for both postgraduate students and researchers new to the advancements in this field, as well as specialists seeking to expand their knowledge across different areas of turbulence research.
Download or read book Optics Letters written by and published by . This book was released on 2006 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt:
