Download or read book Design and Fabrication of Space Variant Micro Optical Elements written by Pradeep Srinivasan and published by . This book was released on 2009 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: A wide range of applications currently utilize conventional optical elements to individually transform the phase, polarization, and spectral transmission/reflection of the incident radiation to realize the desired system level function. The material properties and the feasibility of fabrication primarily impact the device and system functionality that can be realized. With the advancement in micro/nano patterning, growth, deposition and etching technology, devices with novel and multiplexed optical functionalities have become feasible. As a result, it has become possible to engineer the device response in the near and far field by controlling the phase, polarization or spectral response at the micro scale. One of the methods that have been explored to realize unique optical functionalities is by varying the structural properties of the device as a function of spatial location at the sub-micron scale across the device aperture. Spatially varying the structural parameters of these devices is analogous to local modifications of the material properties. In this dissertation, the optical response of interference transmission filters, guided mode resonance reflection filters, and diffraction gratings operated in Littrow condition with strategically introduced spatial variation have been investigated. Spatial variations in optical interference filters were used to demonstrate wavelength tunable spatial filters. The effect was realized by integrating diffractive and continuous phase functions on the defect layer of a one-dimensional photonic crystal structure. Guided mode resonance filters are free space optical filters that provide narrow spectral reflection by combining grating and waveguide dispersion effects. Frequency dependent spatial reflection profiles were achieved by spatially varying the grating fill fraction in designed contours. Diffraction gratings with space variant fill fractions operating in Littrow condition were used to provide graded feedback profiles to improve the beam quality and spatial brightness of broad area diode lasers. The fabrication of space variant structures is challenging and has been accomplished primarily by techniques such as ruling, electron beam writing or complex deposition methods. In order to vary the desired structural parameter in a designed manner, a novel technique for the fabrication of space variant structures using projection lithography with a fidelity that rivals any of the current technologies was also developed as a part of this work. The devices exhibit wavelength dependent beam shaping properties in addition to spatial and spectral filtering and have potential applications in advanced imaging systems, graded reflectivity laser mirrors, and engineered illumination. The design, modeling, microfabrication and experimental characterization of space variant micro optical elements with novel optical functionalities are presented.
Download or read book Design and Fabrication of Micro Optical Components for Miniaturized Optical Imagers written by Jose Vicente Carrion Perez and published by . This book was released on 2016 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: Miniaturization of imaging systems shows nowadays a strong potential for many applications, in particular, e. g., for novel biomedical devices. Related imaging specifications require a substantial effort onto the development of high quality microoptical components. better control of light propagation and features in such system sis also of particular interest. Components should then e.g. contain optical aberrations in order to reach high resolutions. In purpose of searching higher diffraction efficiencies or resolutions, optical components with well-controlled continuous phase profiles are sought. In addition, they also should be made of robust materials to handle their further assembly into miniaturized devices. Consequently, the manuscript focuses on the design and the parallel fabrication of such microoptical components made of glass. To that end, two technologies have been studied and optimized, namely gray-scale lithography and glass-blowing processes. As an example, glass-based microaxicons have been fabricated and Bessel beams generation has been demonstrated. This type of beam exhibits a long non-diffractive propagation distance along the optical axis followed by a dark hollow shape which makes them useful in many different applications. This work has been supported by the SMYLE (Smart Systems for a Better Life) European project and the Ranche-Comté Regional Council.
Download or read book Fabrication of Complex Optical Components written by Ekkard Brinksmeier and published by Springer Science & Business Media. This book was released on 2012-09-14 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: High quality optical components for consumer products made of glass and plastic are mostly fabricated by replication. This highly developed production technology requires several consecutive, well-matched processing steps called a "process chain" covering all steps from mold design, advanced machining and coating of molds, up to the actual replication and final precision measurement of the quality of the optical components. Current market demands for leading edge optical applications require high precision and cost effective parts in large volumes. For meeting these demands it is necessary to develop high quality process chains and moreover, to crosslink all demands and interdependencies within these process chains. The Transregional Collaborative Research Center "Process chains for the replication of complex optical elements" at Bremen, Aachen and Stillwater worked extensively and thoroughly in this field from 2001 to 2012. This volume will present the latest scientific results for the complete process chain giving a profound insight into present-day high-tech production.
Download or read book Design and Optimization of Nano optical Elements by Coupling Fabrication to Optical Behavior written by Raymond C. Rumpf and published by . This book was released on 2006 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: Photonic crystals and nanophotonics have received a great deal of attention over the last decade, largely due to improved numerical modeling and advances in fabrication technologies. To this day, fabrication and optical behavior remain decoupled during the design phase and numerous assumptions are made about "perfect" geometry. As research moves from theory to real devices, predicting device behavior based on realistic geometry becomes critical. In this dissertation, a set of numerical tools was developed to model micro and nano fabrication processes. They were combined with equally capable tools to model optical performance of the simulated structures. Using these tools, it was predicted and demonstrated that 3D nanostructures may be formed on a standard mask aligner. A space-variant photonic crystal filter was designed and optimized based on a simple fabrication method of etching holes through hetero-structured substrates. It was found that hole taper limited their optical performance and a method was developed to compensate. A method was developed to tune the spectral response of guided-mode resonance filters at the time of fabrication using models of etching and deposition. Autocloning was modeled and shown that it could be used to form extremely high aspect ratio structures to improve performance of form-birefringent devices. Finally, the numerical tools were applied to metallic photonic crystal devices.
Download or read book Design and Fabrication of a Free Space Optical Interconnect System Using Holographic Optical Elements written by Darrell Lynn Ramsey and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Design and Fabrication of New Types of Micro Optical Components written by Lijun Zhang and published by . This book was released on 2004 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Some novel micro planar optical components (MPOC) and a micro wire grid polarizer are designed and fabricated. As one of the application of MPOC, a device for color recognition is designed and fabricated. Characteristics of mediums like light, silicon dioxide, silicon and polysilicon as well as their interactions with light are discussed. Making use of the theory of optical physics and geometrical optics, the principle of light path control components and the properties of light energy transmission are analyzed. Power loss of MPOC is simulated by specific optics software. Micro wire grid polarizer is designed and fabricated using MUMP technologies with the support of Canadian Microelectronic Corporation (CMC). Different from traditional optical components fabrication process, the fabrication process coming from chip fabrication technology is applied for the first time for making MPOC. Fabrication of MPOC is conducted in micro-fabrication laboratories at Concordia. All devices are fabricated in micron scales and are compatible with optical fibre light coupling. The processes employed here for fabrication of the micro optical components can greatly reduce the components dimensions and decrease the production cost by a mass production supported by the process.
Download or read book Design and Fabrication of Diffractive Optical Elements written by Jason Kempton Slack and published by . This book was released on 2001 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Microoptics written by Stefan Sinzinger and published by John Wiley & Sons. This book was released on 2006-03-06 with total page 447 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microoptics is an important enabling technology for many areas of application. In this updated second edition of their modern text and reference book, Stefan Sinzinger and Jürgen Jahns expertly and comprehensively present the basics and applications in microoptics, while incorporating the most important developments in recent years. An absolute must for physicists and electrical engineers, from advanced students right up to designers working in the field.
Download or read book Micro Optics written by H. P. Herzig and published by CRC Press. This book was released on 1997-04-26 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text examines the technology behind the plethora of modern industrial and domestic technologies which incorporate micro-optics eg. CDs, cameras, automated manufacturing systems, mobile communications etc. It includes a simple but comprehensive introduction to micro-optical developments design, and an overview of fabrication and replication technology. The theoretical, practical and industrial developments in micro-scale optoelectronics continue apace in the late 1990s. In this book, a distinguished group of physicists and engineers describe the current state of research and applications in micro-optics. It provides the theoretical background and an overview of current technology, with several chapters taking a deeper look at specific recent applications and future trends. The book concentrates on diffractive and refractive micro- optical elements, such as lenses, fan-out gratings, optimized phase elements and polarisers. Sections are included on the simulation and optimization of design for micro-optics and subsequently the efficient transformation from design to real optical elements, using techniques such as e-beam writing, laser beam writing, lithography, etching and thin film deposition.
Download or read book Design Fabrication and Packaging of Free Space Optical Interconnects written by Wyatt Lee Hendrick and published by . This book was released on 2000 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Design Fabrication and Characterization of Three dimensional Optical Elements written by Anita Sure and published by . This book was released on 2004 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Diffractive Optical Elements written by Paul Blair and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Design and Fabrication of Diffractive Optical Elements with MATLAB written by Shanti Bhattacharya (Professor in Optics) and published by . This book was released on 2017 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Given the many different applications and uses of diffractive optics, the importance of this field cannot be underestimated. This book supplements the available literature on diffractive optic elements (DOEs) by equipping readers with the skills to begin designing, simulating, and fabricating diffractive optics. The design of DOEs is presented with simple equations and step-by-step procedures for simulation--from the simplest 1D grating to the more complex multifunctional DOEs--and analyzing their diffraction patterns using MATLAB. The fundamentals of fabrication techniques such as photolithography, electron beam lithography, and focused ion beam lithography with basic instructions for the beginner are presented. Basic error analysis and error-correction techniques for a few cases are also discussed. The contents of all the chapters are supported throughout by practical exercises and clearly commented MATLAB® codes (the codes are also on an accompanying CD), making this book useful even to a novice programmer"--
Download or read book Design and Fabrication of Acousto Optic Devices written by Goutzoulis and published by CRC Press. This book was released on 1994-01-06 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work offers detailed discussions on all aspects of acousto-optic deflectors, modulators and tunable filters, emphasizing hands-on procedures for design, fabrication and testing. It contains previously unpublished treatments of acousto-optic device design and impedance matching, permitting the actual design of real devices and device-matching circuits.
Download or read book Design Fabrication and Characterization of Photonic Devices written by and published by . This book was released on 1999 with total page 818 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Use of Micro optical Elements for Microfabrication written by Ming-Hsien Wu and published by . This book was released on 2002 with total page 570 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Optical Engineering written by Daniel Malacara and published by CRC Press. This book was released on 2001-05-31 with total page 1008 pages. Available in PDF, EPUB and Kindle. Book excerpt: This handbook explains principles, processes, methods, and procedures of optical engineering in a concise and practical way. It emphasizes fundamental approaches and provides useful formulas and step-by-step worked-out examples to demonstrate applications and clarify calculation methods. The book covers refractive, reflective, and diffractive optical components; lens optical devices; modern fringe pattern analysis; optical metrology; Fourier optics and optical image processing; electro-optical and acousto-optical devices; spatial and spectral filters; optical fibers and accessories; optical fabrication; and more. It includes over 2,000 tables, flow charts, graphs, schematics, drawings, photographs, and mathematical expressions.
