Nanophotonic Visible Light Phased Arrays
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Nanophotonic Visible Light Phased Arrays
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Author : Manan Raval
language : en
Publisher:
Release Date : 2016
Nanophotonic Visible Light Phased Arrays written by Manan Raval and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with categories.
Previously demonstrated integrated optical phased arrays have primarily been implemented in silicon-based platforms and have therefore been limited to operation at infrared wavelengths, where silicon provides low-loss transmission. Developing integrated optical phased arrays for visible wavelengths would enable the exploration of new applications for this technology, such as autostereoscopic displays and neuronal targeting for optogenetics. The work presented in this thesis involves the development of visible light integrated optical phased array components and systems with a focus on autostereoscopic image projection applications. Practical 3D microdisplay applications will require (1) large-aperture phased array systems for diffraction minimization, (2) integrated phase modulation for implementing dynamically reconfigurable phased array antenna elements, and (3) a phased array system architecture for accurately encoding the light field of virtual objects. Integrated photonic architectures for all three aforementioned goals are investigated in this thesis. With respect to the first goal, a 1x1 mm2 aperture visible light phased array with a near diffraction limited far-field spot size is demonstrated. With respect to the second goal, the design of an integrated phase modulator based on the electro-optic tuning of a nematic liquid crystal waveguide cladding layer is developed and a near-x phase shift is demonstrated in a fabricated device. Finally, an autostereoscopic image projection system comprised of multiple tiled phased arrays configured to project a virtual image with parallax in one dimension within an 8.58° field of view is demonstrated.
Optical Phased Arrays With Evanescently Coupled Antennas
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Author :
language : en
Publisher:
Release Date : 2015
Optical Phased Arrays With Evanescently Coupled Antennas written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with categories.
An optical phased array formed of a large number of nanophotonic antenna elements can be used to project complex images into the far field. These nanophotonic phased arrays, including the nanophotonic antenna elements and waveguides, can be formed on a single chip of silicon using complementary metal-oxide-semiconductor (CMOS) processes. Directional couplers evanescently couple light from the waveguides to the nanophotonic antenna elements, which emit the light as beams with phases and amplitudes selected so that the emitted beams interfere in the far field to produce the desired pattern. In some cases, each antenna in the phased array may be optically coupled to a corresponding variable delay line, such as a thermo-optically tuned waveguide or a liquid-filled cell, which can be used to vary the phase of the antenna's output (and the resulting far-field interference pattern).
Nanoplasmonics
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Author : Carlos J. Bueno-Alejo
language : en
Publisher: BoD – Books on Demand
Release Date : 2020-04-22
Nanoplasmonics written by Carlos J. Bueno-Alejo and has been published by BoD – Books on Demand this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-04-22 with Science categories.
During the last few years, nanomaterials have attracted the attention of the scientific community due to their extraordinary and unique properties. Their small size, and the distinctive features that come with it, makes these materials very attractive for use in different important fields like biomedicine, sensors, or catalysis. One of the most important properties of these materials is their interaction with light and is called surface plasmon resonance. It is a phenomenon that happens on the surface of certain nanomaterials that confers them with unique properties. This remarkable characteristic has opened a whole new field called nanoplasmonics that is acquiring more and more importance among the scientific community. This book aims to review the state of the art in this new field and provide the reader with a wide overview of the new nanomaterials available and their current and future applications.
Photonic Technologies To Enable Slow Light Applications
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Author : Joseph E. Vornehm
language : en
Publisher:
Release Date : 2014
Photonic Technologies To Enable Slow Light Applications written by Joseph E. Vornehm and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with categories.
"Slow light is light that travels at unusual, extreme group velocities - sometimes as slow as walking speed or slower. Light waves can be described by many velocities, but for a narrow-band pulse of light (a carrier frequency modulated by an envelope), the group velocity is the speed of the pulse envelope. The term slow light also encompasses other exotic group velocities due to similar techniques, including fast light, stopped light, and backwards light. The science of slow light has been established over the past several years, and research attention is now turning to potential applications of slow light. One application of slow light is as an all-optical true-time delay. Two slow light methods in optical fibers, stimulated Brillouin scattering (SBS) and dispersive delay, are used to provide a controllable pulse delay in a prototype slow-light phased-array laser radar, called SLIDAR. These slow light methods compensate the group delay mismatch of pulses of 6 ns duration while the phased array is steered in two dimensions. A phase control system is described that maintains phase lock among three signal channels and a reference channel, each containing 2:2 km of optical fiber, while accommodating the demands of the slow light techniques. Residual phase error is kept below [pi]/5 radians (1/10 wave) RMS. Slow light can also enhance the spectral sensitivity of spectrometers and interferometers. A design for a slow-light-enhanced nanophotonic spectrometer is presented. One important use of spectrometers is to detect specific chemicals, and I describe an approach to multivariate optical computation, which can be used for automatic chemical spectrum recognition. This technique, which could one day be implemented with a slow-light-enhanced spectrometer as a single-chip chemical detection platform, is explored experimentally in the visible spectrum using a spatial light modulator"--Pages viii-ix.
Optical Mems Nanophotonics And Their Applications
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Author : Guangya Zhou
language : en
Publisher: CRC Press
Release Date : 2017-12-14
Optical Mems Nanophotonics And Their Applications written by Guangya Zhou and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-12-14 with Science categories.
This book covers device design fundamentals and system applications in optical MEMS and nanophotonics. Expert authors showcase examples of how fusion of nanoelectromechanical (NEMS) with nanophotonic elements is creating powerful new photonic devices and systems including MEMS micromirrors, MEMS tunable filters, MEMS-based adjustable lenses and apertures, NEMS-driven variable silicon nanowire waveguide couplers, and NEMS tunable photonic crystal nanocavities. The book also addresses system applications in laser scanning displays, endoscopic systems, space telescopes, optical telecommunication systems, and biomedical implantable systems. Presents efforts to scale down mechanical and photonic elements into the nano regime for enhanced performance, faster operational speed, greater bandwidth, and higher level of integration. Showcases the integration of MEMS and optical/photonic devices into real commercial products. Addresses applications in optical telecommunication, sensing, imaging, and biomedical systems. Prof. Vincent C. Lee is Associate Professor in the Department of Electrical and Computer Engineering, National University of Singapore. Prof. Guangya Zhou is Associate Professor in the Department of Mechanical Engineering at National University of Singapore.
High Quality Integrated Silicon Nitride Nanophotonic Structures For Visible Light Applications
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Author : Ehsan Shah Hosseini
language : en
Publisher:
Release Date : 2011
High Quality Integrated Silicon Nitride Nanophotonic Structures For Visible Light Applications written by Ehsan Shah Hosseini and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with Cavity resonators categories.
High quality nanophotonic structures fabricated on silicon nitride substrates and operating in the visible range of the spectrum are investigated. As most biological sensing applications, such as Raman and fluorescence sensing, require visible light pumping and analysis, extending the nanophotonics concepts to the visible range is essential. Traditionally, CMOS compatible processes are used to make compact silicon nanophotonics structures. While the high index contrast of silicon on insulator (SOI) wafers offer a high integration capability, the high absorption loss of silicon renders it unusable in the visible range. In this research high quality factor microdisk and photonic crystal resonators and high resolution arrayed waveguide grating and superprism spectrometers are fabricated and characterized in the visible range and integrated with fluidic structures and their application in biosensing and athermal operations is investigated.
Micro And Nanophotonic Technologies
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Author : Patrick Meyrueis
language : en
Publisher: John Wiley & Sons
Release Date : 2017-03-20
Micro And Nanophotonic Technologies written by Patrick Meyrueis and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-03-20 with Technology & Engineering categories.
Edited and authored by leading experts from top institutions in Europe, the US and Asia, this comprehensive overview of micro- and nanophotonics covers the physical and chemical fundamentals, while clearly focusing on the technologies and applications in industrial R&D. As such, the book reports on the four main areas of telecommunications and display technologies; light conversion and energy generation; light-based fabrication of materials; and micro- and nanophotonic devices in metrology and control.
An Introduction To Metamaterials And Nanophotonics
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Author : Constantin Simovski
language : en
Publisher: Cambridge University Press
Release Date : 2020-11-26
An Introduction To Metamaterials And Nanophotonics written by Constantin Simovski and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-11-26 with Science categories.
This book offers a unified presentation of metamaterials building from fundamental nanophotonic principles.
Integrated Nanophotonics
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Author : Peng Yu
language : en
Publisher: John Wiley & Sons
Release Date : 2023-05-31
Integrated Nanophotonics written by Peng Yu and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-05-31 with Technology & Engineering categories.
Integrated Nanophotonics Helps readers understand the important advances in nanophotonics materials development and their latest applications This book introduces the current state of and emerging trends in the development of integrated nanophotonics. Written by three well-qualified authors, it systematically reviews the knowledge of integrated nanophotonics from theory to the most recent technological developments. It also covers the applications of integrated nanophotonics in essential areas such as neuromorphic computing, biosensing, and optical communications. Lastly, it brings together the latest advancements in the key principles of photonic integrated circuits, plus the recent advances in tackling the barriers in photonic integrated circuits. Sample topics included in this comprehensive resource include: Platforms for integrated nanophotonics, including lithium niobate nanophotonics, indium phosphide nanophotonics, silicon nanophotonics, and nonlinear optics for integrated photonics The devices and technologies for integrated nanophotonics in on-chip light sources, optical packaging of photonic integrated circuits, optical interconnects, and light processing devices Applications on neuromorphic computing, biosensing, LIDAR, and computing for AI and artificial neural network and deep learning Materials scientists, physicists, and physical chemists can use this book to understand the totality of cutting-edge theory, research, and applications in the field of integrated nanophotonics.
Nanophotonics And Plasmonics
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Author : Dr. Ching Eng (Jason) Png
language : en
Publisher: CRC Press
Release Date : 2017-08-21
Nanophotonics And Plasmonics written by Dr. Ching Eng (Jason) Png and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-08-21 with Technology & Engineering categories.
This book provides a first integrated view of nanophotonics and plasmonics, covering the use of dielectric, semiconductor, and metal nanostructures to manipulate light at the nanometer scale. The presentation highlights similarities and advantages, and shows the common underlying physics, targets, and methodologies used for different materials (optically transparent materials for nanophotonics, vs opaque materials for plasmonics). Ultimately, the goal is to provide a basis for developing a unified platform for both fields. In addition to the fundamentals and detailed theoretical background, the book showcases the main device applications. Ching Eng (Jason) Png is Director of the Electronics and Photonics Department at the Institute of High Performance Computing, Agency for Science Technology and Research, Singapore. Yuriy A. Akimov is a scientist in the Electronics and Photonics Department at the Institute of High Performance Computing, Agency for Science Technology and Research, Singapore.