Design Of Gradient Index Optical Thin Films
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Design Of Gradient Index Optical Thin Films
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Author : Jeffrey J. Druessel
language : en
Publisher:
Release Date : 1996-06-01
Design Of Gradient Index Optical Thin Films written by Jeffrey J. Druessel and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996-06-01 with categories.
Gradient index thin films provide greater flexibility for the design of optical coatings than the more conventional 'layer' films. In addition, gradient index films have higher damage thresholds and better adhesion properties. This dissertation presents an enhancement to the existing inverse Fourier transform gradient index design method, and develops a new optimal design method for gradient index films using a generalized Fourier series approach. The inverse Fourier transform method is modified to include use of the phase of the index profile as a variable in rugate filter design. Use of an optimal phase function in Fourier-based filter designs reduces the product of index contrast and thickness for desired reflectance spectra. The shape of the reflectance spectrum is recovered with greater fidelity by suppression of Gibbs oscillations and shifting of side-lobes into desired wavelength regions. A new method of gradient index thin film design using generalized Fourier series extends the domain of problems for which gradient index solutions can be found. The method is analogous to existing techniques for layer based coating design, but adds the flexibility of gradient index films. A subset of the coefficients of a generalized Fourier series representation of the gradient index of refraction profile are used as variables in a nonlinear constrained optimization formulation. The optimal values of the design coefficients are determined using a sequential quadratic programming algorithm. This method is particularly well suited for the design of coatings for laser applications, where only a few widely separated wavelength requirements exist. The generalized Fourier series method is extended to determined the minimum film thickness needed, as well as the index of refraction profile for the optimal film.
A Comparison Of Design Techniques For Gradient Index Thin Film Optical Filters
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Author : Abraham Paulus Kotze
language : en
Publisher:
Release Date : 1998
A Comparison Of Design Techniques For Gradient Index Thin Film Optical Filters written by Abraham Paulus Kotze and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with categories.
Optical Thin Film Design
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Author : Andrew Sarangan
language : en
Publisher: CRC Press
Release Date : 2020-08-13
Optical Thin Film Design written by Andrew Sarangan and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-08-13 with Technology & Engineering categories.
Thin-film coatings are universal on optical components such as displays, lenses, mirrors, cameras, and windows and serve a variety of functions such as antireflection, high reflection, and spectral filtering. Designs can be as simple as a single-layer dielectric for antireflection effects or very complex with hundreds of layers for producing elaborate spectral filtering effects. Starting from basic principles of electromagnetics, design techniques are progressively introduced toward more intricate optical filter designs, numerical optimization techniques, and production methods, as well as emerging areas such as phase change materials and metal film optics. Worked examples, Python computer codes, and instructor problem sets are included. Key Features: Starting from the basic principles of electromagnetics, topics are built in a pedagogic manner toward intricate filter designs, numerical optimization and production methods. Discusses thin-film applications and design from simple single-layer effects to complex several-hundred-layer spectral filtering. Includes modern topics such as phase change materials and metal film optics. Includes worked examples, problem sets, and numerical examples with Python codes.
Optical Thin Films And Structures
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Author : Tsvetanka Babeva
language : en
Publisher: MDPI
Release Date : 2021-06-22
Optical Thin Films And Structures written by Tsvetanka Babeva and has been published by MDPI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-06-22 with Science categories.
The book is devoted to the design, application and characterization of thin films and structures, with special emphasis on optical applications. It comprises ten papers—five featured and five regular—authored by scientists all over the world. Diverse materials are studied and their possible applications are demonstrated and discussed—transparent conductive coatings and structures from ZnO doped with Al and Ga and Ti-doped SnO2, polymers and nanosized zeolite thin films for optical sensing, TiO2 with linear and nonlinear optical properties, organic diamagnetic materials, broadband optical coatings, CrWN glass molding coatings, and silicon on insulator waveguides.
Practical Design And Production Of Optical Thin Films
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Author : Ronald R. Willey
language : en
Publisher: CRC Press
Release Date : 2002-07-09
Practical Design And Production Of Optical Thin Films written by Ronald R. Willey and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002-07-09 with Science categories.
Providing insider viewpoints and perspectives unavailable in any other text, this book presents useful guidelines and tools to produce effective coatings and films. Covering subjects ranging from materials selection and process development to successful system construction and optimization, it contains expanded discussions on design visualization,
Practical Design Of Optical Thin Films Fifth Edition
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Author : Ronald R Willey
language : en
Publisher: Lulu.com
Release Date : 2018-01-18
Practical Design Of Optical Thin Films Fifth Edition written by Ronald R Willey and has been published by Lulu.com this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-01-18 with categories.
This book deals with the basic fundamentals, understanding, and design of optical thin films, or interference coatings for practical production. It focuses on one of the main subjects that is critical to meeting the practical challenges of producing optical coatings. This is the design of coatings, an understanding of which allows the practitioner to know the possibilities and limitations involved in reducing, enhancing, or otherwise controlling the reflection, transmission, and absorption of light (visible or otherwise). This Fifth Edition now includes measurement of index, thickness, and color; the determination of tooling factors; and the programming of Macros, Workbooks, and FilmStar Basic.
Thin Film Design
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Author : Bruce E. Perilloux
language : en
Publisher: SPIE Press
Release Date : 2002
Thin Film Design written by Bruce E. Perilloux and has been published by SPIE Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Science categories.
This text presents several new thin-film design methods that can produce multiple stopbands as well as passbands. It is written for thin-film designers and students with advanced knowledge of multilayer, optical thin-film coatings. The text focuses on coatings that have high reflectance performance requirements in more than one spectral wavelength band or region. Relatively basic exercises are provided for students as well as challenging ones for researchers.
Thin Films On Glass
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Author : Hans Bach
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-03-09
Thin Films On Glass written by Hans Bach and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-03-09 with Technology & Engineering categories.
This book, entitled Thin Films on Glass, is one of a series reporting on research and development activities on products and processes conducted by the Schott Group. The scientifically founded development of new products and technical pro cesses has traditionally been of vital importance to Schott and has always been performed on a scale determined by the prospects for application of our special glasses. Since the reconstruction of the Schott Glaswerke in Mainz, the scale has increased enormously. The range of expert knowledge required could never have been supplied by Schott alone. It is also a tradition in our company to cultivate collaboration with customers, universities, and research institutes. Publications in numerous technical journals, which since 1969 we have edited to a regular schedule as Forschungsberichte - 'research reports' - describe the results of these cooperations. They contain up-to-date infor mation on various topics for the expert but are not suited as survey material for those whose standpoint is more remote. This is the point where we would like to place our series, to stimulate the exchange of thoughts, so that we can consider from different points of view the possibilities offered by those incredibly versatile materials, glass and glass ceramics. We would like to share the knowledge won through our research and development at Schott in cooperation with the users of our materials with scientists and engineers, interested customers and friends, and with the employees of our firm.
Optical Coatings
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Author : Olaf Stenzel
language : en
Publisher: Springer Science & Business
Release Date : 2014-04-29
Optical Coatings written by Olaf Stenzel and has been published by Springer Science & Business this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-04-29 with Science categories.
Optical coatings, i.e. multilayer stacks composed from a certain number of thin individual layers, are an essential part of any optical system necessary to tailor the properties of the optical surfaces. Hereby, the performance of any optical coating is defined by a well-balanced interplay between the properties of the individual coating materials and the geometrical parameters (such as film thickness) which define their arrangement. In all scientific books dealing with the performance of optical coatings, the main focus is on optimizing the geometrical coating parameters, particularly the number of individual layers and their thickness. At the same time, much less attention is paid to another degree of freedom in coating design, namely the possibility to tailor optical material properties to an optimum relevant for the required specification. This book, on the contrary, concentrates on the material aside of the problem. After a comprehensive review of the basics of thin film theory, traditional optical coating material properties and their relation to the efficiency of coating design methods, emphasis is placed on novel results concerning the application of material mixtures and nanostructured coatings in optical coating theory and practice, including porous layers, dielectric mixtures as well as metal island films for different applications.
Thin Films For Optical Systems
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Author : Flory
language : en
Publisher: CRC Press
Release Date : 1995-07-06
Thin Films For Optical Systems written by Flory and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995-07-06 with Science categories.
This work presents advances in thin films for applications in the fields of integrated optics, micro-optics, optical telecommunications and optoelectronics. It delineates the performance characteristics needed for graded coatings, damage-resistant laser coatings and many others. Basic theory and applications are illustrated.