Adjoint Optimization of Free-space Metasurfaces PDF Download
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Author: David Sell
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Metasurfaces are ultrathin optical elements that are highly promising for constructing lightweight and compact optical systems. In order to enhance the capabilities of the technology beyond what is achievable with conventional optics, I introduce a method for designing free-space metasurfaces via adjoint topology optimization. Using silicon on glass as a platform, I demonstrate that the optimization of wavelength-scale sections can be used to construct both periodic and aperiodic optical devices. For periodic devices, I show the process for optimizing a polarization-insensitive grating which efficiently deflects light to 75 degrees, as well as gratings which are capable of independently splitting up to 5 separate wavelengths. For aperiodic devices, I demonstrate the process by which we construct large objects, such as lenses, using wavelength-scale sections that are individually optimized to deflect to specific angles with a specified phase delay. Overall, we envision that the proper application of optimization techniques to free-space metasurfaces can realize their usage in enabling technologies requiring compact control over multiple distinct channels of light.
Author: David Sell
Publisher:
ISBN:
Category :
Languages : en
Pages :
Get Book Here
Book Description
Metasurfaces are ultrathin optical elements that are highly promising for constructing lightweight and compact optical systems. In order to enhance the capabilities of the technology beyond what is achievable with conventional optics, I introduce a method for designing free-space metasurfaces via adjoint topology optimization. Using silicon on glass as a platform, I demonstrate that the optimization of wavelength-scale sections can be used to construct both periodic and aperiodic optical devices. For periodic devices, I show the process for optimizing a polarization-insensitive grating which efficiently deflects light to 75 degrees, as well as gratings which are capable of independently splitting up to 5 separate wavelengths. For aperiodic devices, I demonstrate the process by which we construct large objects, such as lenses, using wavelength-scale sections that are individually optimized to deflect to specific angles with a specified phase delay. Overall, we envision that the proper application of optimization techniques to free-space metasurfaces can realize their usage in enabling technologies requiring compact control over multiple distinct channels of light.
Author: Jim Bernard Breckinridge
Publisher: SPIE-International Society for Optical Engineering
ISBN: 9780819482044
Category : Science
Languages : en
Pages : 232
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Book Description
Computational Fourier Optics is a text that shows the reader in a tutorial form how to implement Fourier optical theory and analytic methods on the computer. A primary objective is to give students of Fourier optics the capability of programming their own basic wave optic beam propagations and imaging simulations. The book will also be of interest to professional engineers and physicists learning Fourier optics simulation techniques-either as a self-study text or a text for a short course. For more advanced study, the latter chapters and appendices provide methods and examples for modeling beams and pupil functions with more complicated structure, aberrations, and partial coherence. For a student in a course on Fourier optics, this book is a concise, accessible, and practical companion to any of several excellent textbooks on Fourier optical theory.
Author: Federico Capasso
Publisher: Walter de Gruyter GmbH & Co KG
ISBN: 3110710684
Category : Technology & Engineering
Languages : en
Pages : 783
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Book Description
This book provides a cutting-edge research overview on the latest developments in the field of Optics and Photonics. All chapters are authored by the pioneers in their field and will cover the developments in Quantum Photonics, Optical properties of 2D Materials, Optical Sensors, Organic Opto-electronics, Nanophotonics, Metamaterials, Plasmonics, Quantum Cascade lasers, LEDs, Biophotonics and biomedical photonics and spectroscopy.
Author: Sergey I. Bozhevolnyi
Publisher: MDPI
ISBN: 3038973440
Category : Mathematics
Languages : en
Pages : 167
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Book Description
This book is a printed edition of the Special Issue "Metasurfaces: Physics and Applications" that was published in Applied Sciences
Author: Zi-Lan Deng
Publisher: Springer Nature
ISBN: 3031023862
Category : Science
Languages : en
Pages : 68
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Book Description
The merging of metasurface and holography brings about unprecedented opportunities for versatile manipulation of light in terms of both far-field wavefront and near-field profile. In this book, a brief evolving history from surface plasmon polariton holography to metamaterial holography and finally to metasurface holography is introduced at first. Basic physical mechanisms that govern the phase modulation rules behind metasurface holography design are discussed later. Next, extended functionalities such as arbitrary polarization holography, vectorial holography, full-color holography, and hybrid holography achieved in the metasurface platform are presented. Surface wave and metagrating holography that bridges the on-chip surface wave and free-space wave is also introduced. In the end, we envisage practical applications of high-fidelity 3D holographic display, high-secure encryption, and high capacity digital encoding and also indicate remaining challenges based on metasurface holography.
Author: Sawyer D. Campbell
Publisher: John Wiley & Sons
ISBN: 1119853915
Category : Technology & Engineering
Languages : en
Pages : 596
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Book Description
Advances in Electromagnetics Empowered by Artificial Intelligence and Deep Learning Authoritative reference on the state of the art in the field with additional coverage of important foundational concepts Advances in Electromagnetics Empowered by Artificial Intelligence and Deep Learning presents cutting-edge research advances in the rapidly growing areas in optical and RF electromagnetic device modeling, simulation, and inverse-design. The text provides a comprehensive treatment of the field on subjects ranging from fundamental theoretical principles and new technological developments to state-of-the-art device design, as well as examples encompassing a wide range of related sub-areas. The content of the book covers all-dielectric and metallodielectric optical metasurface deep learning-accelerated inverse-design, deep neural networks for inverse scattering, applications of deep learning for advanced antenna design, and other related topics. To aid in reader comprehension, each chapter contains 10-15 illustrations, including prototype photos, line graphs, and electric field plots. Contributed to by leading research groups in the field, sample topics covered in Advances in Electromagnetics Empowered by Artificial Intelligence and Deep Learning include: Optical and photonic design, including generative machine learning for photonic design and inverse design of electromagnetic systems RF and antenna design, including artificial neural networks for parametric electromagnetic modeling and optimization and analysis of uniform and non-uniform antenna arrays Inverse scattering, target classification, and other applications, including deep learning for high contrast inverse scattering of electrically large structures Advances in Electromagnetics Empowered by Artificial Intelligence and Deep Learning is a must-have resource on the topic for university faculty, graduate students, and engineers within the fields of electromagnetics, wireless communications, antenna/RF design, and photonics, as well as researchers at large defense contractors and government laboratories.
Author: Igor I Smolyaninov
Publisher: Morgan & Claypool Publishers
ISBN: 1681745658
Category : Technology & Engineering
Languages : en
Pages : 81
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Book Description
Hyperbolic metamaterials were originally introduced to overcome the diffraction limit of optical imaging. Soon thereafter it was realized that hyperbolic metamaterials demonstrate a number of novel phenomena resulting from the broadband singular behavior of their density of photonic states. These novel phenomena and applications include super resolution imaging, new stealth technologies, enhanced quantum-electrodynamic effects, thermal hyperconductivity, superconductivity, and interesting gravitation theory analogs. Here I review typical material systems, which exhibit hyperbolic behavior and outline important new applications of hyperbolic metamaterials, such as imaging experiments with plasmonic hyperbolic metamaterials and novel VCSEL geometries, in which the Bragg mirrors may be engineered in such a way that they exhibit hyperbolic properties in the long wavelength infrared range, so that they may be used to efficiently remove excess heat from the laser cavity. I will also discuss potential applications of self-assembled photonic hypercrystals. This system bypasses 3D nanofabrication issues, which typically limit hyperbolic metamaterial applications. Photonic hypercrystals combine the most interesting features of hyperbolic metamaterials and photonic crystals.
Author: Xin Tong
Publisher: Springer Nature
ISBN: 3030742709
Category : Technology & Engineering
Languages : en
Pages : 319
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Book Description
This book presents a comprehensive overview of state-of-the-art quantum dot photodetectors, including device fabrication technologies, optical engineering/manipulation strategies, and emerging photodetectors with building blocks of novel quantum dots (e.g. perovskite) as well as their hybrid structured (e.g. 0D/2D) materials. Semiconductor quantum dots have attracted much attention due to their unique quantum confinement effect, which allows for the facile tuning of optical properties that are promising for next-generation optoelectronic applications. Among these remarkable properties are large absorption coefficient, high photosensitivity, and tunable optical spectrum from ultraviolet/visible to infrared region, all of which are very attractive and favorable for photodetection applications. The book covers both fundamental and frontier research in order to stimulate readers' interests in developing novel ideas for semiconductor photodetectors at the center of future developments in materials science, nanofabrication technology and device commercialization. The book provides a knowledge sharing platform and can be used as a reference for researchers working in the fields of photonics, materials science, and nanodevices.
Author: Habib Ammari
Publisher: American Mathematical Soc.
ISBN: 1470448009
Category : Mathematics
Languages : en
Pages : 522
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Book Description
The fields of photonics and phononics encompass the fundamental science of light and sound propagation and interactions in complex structures, as well as its technological applications. This book reviews new and fundamental mathematical tools, computational approaches, and inversion and optimal design methods to address challenging problems in photonics and phononics. An emphasis is placed on analyzing sub-wavelength resonators, super-focusing and super-resolution of electromagnetic and acoustic waves, photonic and phononic crystals, electromagnetic cloaking, and electromagnetic and elastic metamaterials and metasurfaces. Throughout this book, the authors demonstrate the power of layer potential techniques for solving challenging problems in photonics and phononics when they are combined with asymptotic analysis. This book might be of interest to researchers and graduate students working in the fields of applied and computational mathematics, partial differential equations, electromagnetic theory, elasticity, integral equations, and inverse and optimal design problems in photonics and phononics.
Author: Nader Engheta
Publisher: John Wiley & Sons
ISBN: 0471784184
Category : Technology & Engineering
Languages : en
Pages : 438
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Book Description
Leading experts explore the exotic properties and exciting applications of electromagnetic metamaterials Metamaterials: Physics and Engineering Explorations gives readers a clearly written, richly illustrated introduction to the most recent research developments in the area of electromagnetic metamaterials. It explores the fundamental physics, the designs, and the engineering aspects, and points to a myriad of exciting potential applications. The editors, acknowledged leaders in the field of metamaterials, have invited a group of leading researchers to present both their own findings and the full array of state-of-the-art applications for antennas, waveguides, devices, and components. Following a brief overview of the history of artificial materials, the publication divides its coverage into two major classes of metamaterials. The first half of the publication examines effective media with single (SNG) and double negative (DNG) properties; the second half examines electromagnetic band gap (EBG) structures. The book further divides each of these classes into their three-dimensional (3D volumetric) and two-dimensional (2D planar or surface) realizations. Examples of each type of metamaterial are presented, and their known and anticipated properties are reviewed. Collectively, Metamaterials: Physics and Engineering Explorations presents a review of recent research advances associated with a highly diverse set of electromagnetic metamaterials. Its multifaceted approach offers readers a combination of theoretical, numerical, and experimental perspectives for a better understanding of their behaviors and their potentialapplications in components, devices, and systems. Extensive reference lists provide opportunities to explore individual topics and classes of metamaterials in greater depth. With full-color illustrations throughout to clarify concepts and help visualize actual results, this book provides a dynamic, user-friendly resource for students, engineers, physicists, and other researchers in the areas of electromagnetic materials, microwaves, millimeter waves, and optics. It equips newcomers with a basic understanding of metamaterials and their potential applications. Advanced researchers will benefit from thought-provoking perspectives that will deepen their knowledge and lead them to new areas of investigation.
