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Optical Antennas

2013-01-03 Science
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Release : 2013-01-03
Genre : Science
Kind : eBook
Book Rating : 14X/5 ( reviews)

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Book Synopsis Optical Antennas by : Mario Agio

Download or read book Optical Antennas written by Mario Agio. This book was released on 2013-01-03. Available in PDF, EPUB and Kindle. Book excerpt: This consistent and systematic review of recent advances in optical antenna theory and practice brings together leading experts in the fields of electrical engineering, nano-optics and nano-photonics, physical chemistry and nanofabrication. Fundamental concepts and functionalities relevant to optical antennas are explained, together with key principles for optical antenna modelling, design and characterisation. Recognising the tremendous potential of this technology, practical applications are also outlined. Presenting a clear translation of the concepts of radio antenna design, near-field optics and field-enhanced spectroscopy into optical antennas, this interdisciplinary book is an indispensable resource for researchers and graduate students in engineering, optics and photonics, physics and chemistry.

Optical Antennas

2014-09-03 Science
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Release : 2014-09-03
Genre : Science
Kind : eBook
Book Rating : 655/5 ( reviews)

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Book Synopsis Optical Antennas by : Matthias Dominik Wissert

Download or read book Optical Antennas written by Matthias Dominik Wissert. This book was released on 2014-09-03. Available in PDF, EPUB and Kindle. Book excerpt: The linear and nonlinear resonance behaviour of optical antennas (metallic nanostructures showing resonance behaviour at optical frequencies) made of gold and aluminum using electron-beam lithography is investigated. Specifically, it is of interest how the emission behaviour is changed by the coupling of two antenna arms via a small gap. Experimental techniques applied include dark-field spectroscopy and two-photon luminescence.

Rectenna Solar Cells

2013-09-16 Technology & Engineering
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Release : 2013-09-16
Genre : Technology & Engineering
Kind : eBook
Book Rating : 164/5 ( reviews)

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Book Synopsis Rectenna Solar Cells by : Garret Moddel

Download or read book Rectenna Solar Cells written by Garret Moddel. This book was released on 2013-09-16. Available in PDF, EPUB and Kindle. Book excerpt: Rectenna Solar Cells discusses antenna-coupled diode solar cells, an emerging technology that has the potential to provide ultra-high efficiency, low-cost solar energy conversion. This book will provide an overview of solar rectennas, and provide thorough descriptions of the two main components: the diode, and the optical antenna. The editors discuss the science, design, modeling, and manufacturing of the antennas coupled with the diodes. The book will provide concepts to understanding the challenges, fabrication technologies, and materials required to develop rectenna structures. Written by experts in their specialized fields.

Infrared Antennas and Resonant Structures

2017 Electromagnetism
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Release : 2017
Genre : Electromagnetism
Kind : eBook
Book Rating : 584/5 ( reviews)

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Book Synopsis Infrared Antennas and Resonant Structures by : Javier Alda

Download or read book Infrared Antennas and Resonant Structures written by Javier Alda. This book was released on 2017. Available in PDF, EPUB and Kindle. Book excerpt: Explains the basics of electromagnetism applicable to the interaction of light with metallic structures having a size comparable to the wavelength, then discusses the special behaviour of metals; how to model, design, and validate through simulation of the proposed geometries; how to fabricate the most promising device designs; and various characterization techniques.

Plasmonic Optical Antennas for Enhanced Light Detection and Emission

2011
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Release : 2011
Genre :
Kind : eBook
Book Rating : /5 ( reviews)

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Book Synopsis Plasmonic Optical Antennas for Enhanced Light Detection and Emission by : Edward Simon Barnard

Download or read book Plasmonic Optical Antennas for Enhanced Light Detection and Emission written by Edward Simon Barnard. This book was released on 2011. Available in PDF, EPUB and Kindle. Book excerpt: Antennas are used across a wide range of frequencies in the electromagnetic spectrum to concentrate wave energy into electronic circuits. The principles that govern the operation of conventional radio-frequency antennas can be extended to much higher frequencies and be applied to produce nano-metallic (i.e. plasmonic) antennas that act as "receivers" and "transmitters" for visible light. These traits make them excellent candidates for light trapping in solar cells, light concentration in sub-wavelength photodetectors, or even localized heating for cancer therapies. The unique optical properties of metals at visible frequencies make it difficult to apply traditional antenna design rules. Using full-field electromagnetic simulations and analytical antenna models, we developed new design rules for producing optical antennas with a desired set of optical properties. We then applied these design rules to create antennas that resonantly enhance absorption on thin silicon detectors as well as enhance emission of cathodoluminescence (CL). Through spatial and spectral mapping of both photocurrent and CL we clearly show the fundamental and higher-order resonant modes of these antennas. With CL we are also able to map the spatial distribution of these resonant modes with nanometer resolution. In addition to these specific demonstrated applications, the results of this work enable optical engineers to more easily design a myriad of plasmonic devices that employ optical antenna structures, including nanoscale photodetectors, light sources, sensors, and modulators.

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