Download or read book Fabrication and Analysis of 3D Colloidal Photonic Crystals written by Ka Ho Man and published by . This book was released on 2006 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Photonic Crystals written by Kurt Busch and published by John Wiley & Sons. This book was released on 2006-05-12 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: The majority of the contributions in this topically edited book stems from the priority program SPP 1113 "Photonische Kristalle" run by the Deutsche Forschungsgemeinschaft (DFG), resulting in a survey of the current state of photonic crystal research in Germany. The first part of the book describes methods for the theoretical analysis of their optical properties as well as the results. The main part is dedicated to the fabrication, characterization and modeling of two- and three-dimensional photonic crystals, while the final section presents a wide spectrum of applications: gas sensors, micro-lasers, and photonic crystal fibers. Illustrated in full color, this book is not only of interest to advanced students and researchers in physics, electrical engineering, and material science, but also to company R&D departments involved in photonic crystal-related technological developments.
Download or read book Photonic Crystals Theory Applications and Fabrication written by Dennis W Prather and published by John Wiley & Sons. This book was released on 2009-05-26 with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Only Source You Need for Understanding the Design and Applications of Photonic Crystal-Based Devices This book presents in detail the fundamental theoretical background necessary to understand the unique optical phenomena arising from the crystalline nature of photonic-crystal structures and their application across a range of disciplines. Organized to take readers from basic concepts to more advanced topics, the book covers: Preliminary concepts of electromagnetic waves and periodic media Numerical methods for analyzing photonic-crystal structures Devices and applications based on photonic bandgaps Engineering photonic-crystal dispersion properties Fabrication of two- and three-dimensional photonic crystals The authors assume an elementary knowledge of electromagnetism, vector calculus, Fourier analysis, and complex number analysis. Therefore, the book is appropriate for advanced undergraduate students in physics, applied physics, optics, electronics, and chemical and electrical engineering, as well as graduate students and researchers in these fields.
Download or read book Photonic Crystals written by Kuon Inoue and published by Springer. This book was released on 2013-11-11 with total page 329 pages. Available in PDF, EPUB and Kindle. Book excerpt: Photonic crystals are a very hot topic in photonics. The basics, fabrication, application and new theoretical developments in the field of photonic crystals are presented in a comprehensive way, together with a survey of the advanced state-of-the-art report.
Download or read book Photonic Crystals written by Kuon Inoue and published by Springer Science & Business Media. This book was released on 2004-07-20 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: Photonic crystals are a very hot topic in photonics. The basics, fabrication, application and new theoretical developments in the field of photonic crystals are presented in a comprehensive way, together with a survey of the advanced state-of-the-art report.
Download or read book Fabrication and Study of the Optical Properties of 3D Photonic Crystals and 2D Graded Photonic Super Crystals written by David Lowell and published by . This book was released on 2018 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this dissertation, I am presenting my research on the fabrication and simulation of the optical properties of 3D photonic crystals and 2D graded photonic super-crystals. The 3D photonic crystals were fabricated using holographic lithography with a single, custom-built reflective optical element (ROE) and single exposure from a visible light laser. Fully 3D photonic crystals with 4-fold, 5- fold, and 6-fold symmetries were fabricated using the flexible, 3D printed ROE. In addition, novel 2D graded photonic super-crystals were fabricated using a spatial light modulator (SLM) in a 4f setup for pixel-by-pixel phase engineering. The SLM was used to control the phase and intensity of sets of beams to fabricate the 2D photonic crystals in a single exposure. The 2D photonic crystals integrate super-cell periodicities with 4-fold, 5-fold, and 6-fold symmetries and a graded fill fraction. The simulations of the 2D graded photonic super-crystals show extraordinary properties such as full photonic band gaps and cavity modes with Q-factors of ̃106. This research could help in the development of organic light emitting diodes, high-efficiency solar cells, and other devices.
Download or read book Theoretical Foundations and Application of Photonic Crystals written by Alexander Vakhrushev and published by BoD – Books on Demand. This book was released on 2018-04-04 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is devoted to the description of research and design of photonic crystals. Topics included in the book cover a wide range of research in the field of theoretical analysis and experimental investigation: the electromagnetic field in the photonic crystal, propagation of waves in the gyrotropic magnetophotonic crystals, low one-photon absorption, ultratransparent photonic crystals, colloidal assembly, photonic crystal application for development of all-optical computational system, design strategies for PC devices, self-organization of liquid crystalline nanostructures, and optical diodes. This book will be useful for engineers, technologists, researchers, and postgraduate students interested in the research, design, fabrication processes, and applications of photonic crystals.
Download or read book Assessment of Colloidal Self assembly for Photonic Crystal written by Chan Hoe Yip and published by . This book was released on 2006 with total page 93 pages. Available in PDF, EPUB and Kindle. Book excerpt: A suspension of monodisperse colloids has an interesting property of self-assembling into a three-dimensional ordered structure. This crystalline material has attracted significant interest on the implementation of photonic crystals, which have practical applications in reflectors, filters, resonators, and waveguides. In this thesis, self-assembly of colloidal crystals and photonic crystal technologies are reviewed. Potential colloidal photonic and non-photonic devices were presented and their values/limitations were discussed. Colloidal photonic crystals were assessed on their technical capabilities, growth techniques and fabrication cost. In this assessment, the bulk colloidal photonic crystals are found to be inherently robust against stacking disorder, cracks and voids. The high reflectance performance and lattice parameter tailoring are useful for implementing reflectors, optical switch and sensors. Besides, the anomalous dispersion characteristic near to the band edges or near to flat bands of the photonic band diagram is suited for superprism and light harvesting applications. Potentially, the unique characteristics of colloidal photonic crystal could be capitalized in a low cost micro-fabrication model. Finally, the study has shown that it is more technically and commercially viable to implement bulk colloidal photonic crystal applications rather than lithographically-defined types.
Download or read book Photonic Crystals Physics and Technology written by Concita Sibilia and published by Springer Science & Business Media. This book was released on 2009-02-03 with total page 289 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of the work is give an overview of the activity in the field of Photonic Crystal developed in the frame of COST P11 action . The main objective of the COST P11 action was to unify and coordinate national efforts aimed at studying linear and nonlinear optical interactions with Photonic Crystals (PCs), without neglecting an important aspect related to the material research as idea and methods of realizations of 3D PC, together with the development and implementation of measurement techniques for the experimental evaluation of their potential applications in different area, as for example telecommunication with novel optical fibers, lasers, nonlinear multi-functionality, display devices, opto-electronics, sensors. The book contains contributions from authors who gave their lecture at the Cost P11 Training School.
Download or read book Fabrication of Three dimensional Photonic Crystals Via Direct Laser Writing in an All inorganic Photoresist written by Sean Hang Edmond Wong and published by . This book was released on 2005 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fabrication and Defect Design in Two dimensional Colloidal Photonic Crystals written by Erik Peter Geiss and published by . This book was released on 2003 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Photonic Crystals and Light Localization in the 21st Century written by C.M. Soukoulis and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains papers presented at the NATO Advanced Study Institute (ASI) Photonic Crystals and Light Localization held at the Creta Maris Hotel in Limin Hersonissou, Crete, June 18-30, 2000. Photonic crystals offer unique ways to tailor light and the propagation of electromagnetic waves (EM). In analogy to electrons in a crystal, EM waves propagating in a structure with a periodically modulated dielectric constant are organized into photonic bands, separated by gaps where propagating states are forbidden. There have been proposals for novel applications ofthese photonic band gap (PBG) crystals, with operating frequencies ranging from microwave to the optical regime, that include zero threshold lasers, low-loss resonators and cavities, and efficient microwave antennas. Spontaneous emission, suppressed for photons in the photonic band gap, offers novel approaches to manipulate the EM field and create high-efficiency light-emitting structures. Innovative ways to manipulate light can have a profound iofluence on science and technology.
Download or read book Photonic Crystals written by Alessandro Massaro and published by BoD – Books on Demand. This book was released on 2012-03-30 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt: The second volume of the book concerns the characterization approach of photonic crystals, photonic crystal lasers, photonic crystal waveguides and plasmonics including the introduction of innovative systems and materials. Photonic crystal materials promises to enable all-optical computer circuits and could also be used to make ultra low-power light sources. Researchers have studied lasers from microscopic cavities in photonic crystals that act as reflectors to intensify the collisions between photons and atoms that lead to lazing, but these lasers have been optically-pumped, meaning they are driven by other lasers. Moreover, the physical principles behind the phenomenon of slow light in photonic crystal waveguides, as well as their practical limitations, are discussed. This includes the nature of slow light propagation, its bandwidth limitation, coupling of modes and particular kind terminating photonic crystals with metal surfaces allowing to propagate in surface plasmon-polariton waves. The goal of the second volume is to provide an overview about the listed issues.
Download or read book Nanomaterials and Nanoarchitectures written by M. Bardosova and published by Springer. This book was released on 2015-08-31 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: The current work consists of nine contributions describing recent progress in the interdisciplinary of Nanoscience, which involves physics, chemistry, engineering, biology and medicine and one essay outlining some important historical and socioeconomic factors pertaining to recent developments in nanoscale science and technology. All 10 chapters have been written by eminent experts in their respective fields. The authors employ the terms ‘nanomaterials’ as building blocks of a range of materials, ‘nanoarchitecture’ represents the design and ‘nanotechnology’ the means to produce a particular device or functionality. Two of the chapters are devoted to novel materials and two others focus on analyzing techniques, which can be used to enable molecular control of the film architecture. Additionally, the reader will find material devoted to photonic and hybrid plasmonic-photonic crystals as well as sections which address their applications, such as the use of plasmonic particles and nanostructures for new sensing concepts and ultrasensitive detection techniques. This work will be of interest to graduate students, researchers and practitioners alike.
Download or read book Advances in Photonic Crystals and Devices written by Narendra Kumar and published by CRC Press. This book was released on 2019-09-06 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent decades, there has been a phenomenal growth in the field of photonic crystal research and has emerged as an interdisciplinary area. Photonic crystals are usually nanostructured electromagnetic media consisting of periodic variation of dielectric constant, which prohibit certain electromagnetic wave frequency ranges called photonic bandgaps to propagate through them. Photonic crystals elicited numerous interesting features by unprecedented control of light and their exploitation is a promising tool in nanophotonics and designing optical components. The book ‘Advances in Photonic Crystals and Devices’ is designed with 15 chapters with introductory as well as research and application based contents. It covers the following highlighted features: Basics of photonic crystals and photonic crystal fibers Different theoretical as well as experimental approaches Current research advances from around the globe Nonlinear optics and super-continuum generation in photonic crystal fibers Magnetized cold plasma photonic crystals Liquid crystal defect embedded with graphene layers Biophysics and biomedical applications as optical sensors Two-dimensional photonic crystal demultiplexer Optical logic gates using photonic crystals A large number of references The goal of this book is to draw the background in understanding, fabrication and characterization of photonic crystals using a variety of materials and their applications in design of several optical devices. Though the book is useful as a reference for the researchers working in the area of photonics, optical computing and fabrication of nanophotonic devices, it is intended for the beginners like students pursuing their masters’ degree in photonics.
Download or read book Advances in Photonic Crystals written by Vittorio Passaro and published by BoD – Books on Demand. This book was released on 2013-02-13 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book collects chapters on different theoretical and experimental aspects of photonics crystals for Nanophotonics applications. It is divided in two parts - a theoretical section and an experimental and applicative section. The first part includes chapters developing several numerical methods for analysis and design of photonic crystal devices, such as 2D ring resonators for filters, single and coupled nanobeam cavities, birefringence in photonic crystal cavities, threshold analysis in photonic crystal lasers, gap solitons in photonic crystals, novel photonic atolls, dynamic characteristics of photonic crystal filters. The second part focuses on some aspects of photonic crystals fabrication and relevant applications, such as nitrogen defect technology in diamond, silicon nitride free standing membranes, photonic crystals structures in silicon, photonic crystals for optical sensing.
Download or read book Fabrication of 3 Dimensional Si Si Ti Or Ti Photonic Crystals by the Direct Metallothermic Reduction of Oxide Precursors written by Christopher Purdon and published by . This book was released on 2011 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Photonic crystals are well ordered materials characterised by a regularly modulated refractive index in 1, 2 or 3 dimensions, with a period typically near the length scale of the visible spectrum of light. Periodicity gives rise to photonic band gaps; a narrow range of frequencies for which light wave propagation within the photonic crystal is forbidden. Photonic Band Gap materials offer a multitude of opportunities for the manipulation of light, and hence they are finding increasingly widespread use in optical and optoelectronic devices. Currently there is an enormous interest in the fabrication of 3 dimensional Si photonic crystals. This Project aims to explore the feasibility of direct magnesiothermic reduction of SiO2 colloidal crystals (synthetic opals) as a means to fabricate 3 dimensional Si photonic crystal materials. Initially, batches of monodisperse, sub micron sized silica (SiO2) colloids were prepared by the ammonia catalysed hydrolysis of tetraethyl orthosilicate (TEOS) using the well known Stöber method. By varying the reaction temperature (20-65oC) and keeping all other reaction parameters constant ([TEOS] = 0.4M, [NH3] = 0.5M, [H2O] = 10M, solvent ethanol), batches of monodisperse silica colloids with diameters of 120-400 nm were synthesised successfully. The silica colloids readily self-assembled to form 3-dimensional silica colloidal crystals (synthetic opals). Silica colloidal crystal powders were obtained by gravitational sedimentation of silica colloids in ethanol, followed by removal of the ethanol and air drying. Silica colloidal crystal thin films on glass or silicon substrates were obtained immersing the planar substrate vertically in dilute ethanolic dispersions of SiO2 colloids, and allowing the ethanol to slowly evaporate at room temperature. SiO2 colloidal crystals formed at the falling meniscus. The obtained silica colloidal crystals displayed angle dependent structural colour similar to natural opal and were structurally and optically characterised by SEM, TEM, XRD, UV-Vis transmission and UV-Vis reflectance measurements. The optical characteristics of the silica colloidal crystals obeyed a modified Bragg's law expression which takes account of both refraction and diffraction of light in the silica colloidal crystal. Magnesiothermic reduction of SiO2 colloidal crystal powders and thin films (on Si substrate) was investigated over the temperature range 650-800oC and at SiO2: Mg ratios of 1:2-1:2.5. The experiments were carried out in sealed stainless steel Swagelok reactors. In agreement with the thermodynamic predictions Mg reduced SiO2 to Si effectively in this temperature range, yielding MgO as a by-product. After digestion of the MgO in dilute hydrochloric acid, the obtained 3-dimensional Si colloidal crystals were successfully characterised by SEM, TEM, EDAX, XRD, N2 physisorption and XPS. The data confirmed the transformation of dense amorphous SiO2 colloids to porous nanocrystalline Si, whilst preserving the overall structure of the 3-dimensional Si colloidal crystal. The Si solid volume fraction in the obtained product was ~30-35% compared to 74% in the SiO2 colloidal crystal precursors. Attempts to prepare Si colloidal crystals by the calciothermic reduction of SiO2 colloidal crystals at 850oC were ineffective, and yielded CaSiO3 as the main product. Magnesiothermic reduction of TiO2 powders at 675-850oC yielded TiO as the main titanium containing phases. By comparison, calciothermic reduction of TiO2 yielded alpha-Ti as the main phase; furthermore magnesiothermic reduction of SiO2-TiO2 yielded Si-Ti alloy phases. All of which is indicative towards the potential of metallothermic reduction of TiO2 containing phases".
