[PDF] Numerical Study Of Plasmon Resonances In Nanoparticles eBook

Author : ZHENYU. ZHANG
Publisher : LAP Lambert Academic Publishing
Page : 0 pages
File Size : 21,10 MB
Release : 2012-05-16
Category :
ISBN : 9783659119736

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Surface plasmon resonances in nanoparticles have numerous promising scientific and technological applications in such areas as nanophotonics, near-field microscopy, nano-lithography, biosensor, metamaterial and optical data storage. Consequently, the understanding of plasmon resonances in nanoparticles has both fundamental and practical significance. In this book, a new efficient numerical technique to fully characterize the plasmon resonances in three-dimensional nanoparticles is presented. In this technique, the problem of determining the plasmon resonant frequencies is framed as an integral equation based eigenvalue problem, and the plasmon resonant frequencies can be directly found through the solution of this eigenvalue problem. The numerical implementation of this technique is discussed in detail and numerous computational results are presented and compared with both theoretical and experimental data. The integral equation based numerical technique presented throughout this book can be instrumental for the design of plasmon resonant nanoparticles and to tailor their optical properties for various applications.

Author : I. D. Mayergoyz
Publisher : World Scientific
Page : 336 pages
File Size : 41,7 MB
Release : 2013
Category : Science
ISBN : 9814350656

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This unique volume provides a broad introduction to plasmon resonances in nanoparticles and their novel applications. Here, plasmon resonances are treated as an eigenvalue problem for specific boundary integral equations and general physical properties of plasmon spectrum are studied in detail. The coupling of incident radiation to specific plasmon modes, the time dynamics of their excitation and dephasing are also analytically treated. Finally, the applications of plasmon resonances to SERS, light controllability (gating) of plasmon resonances in semiconductor nanoparticles, the use of plasmon resonances in thermally assisted magnetic recording (TAMR), as well as in all-optical magnetic recording and for enhancement of magneto-optic effects are presented.

Author : Andreas Trügler
Publisher : Springer
Page : 227 pages
File Size : 42,27 MB
Release : 2016-03-29
Category : Science
ISBN : 3319250744

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This book introduces the fascinating world of plasmonics and physics at the nanoscale, with a focus on simulations and the theoretical aspects of optics and nanotechnology. A research field with numerous applications, plasmonics bridges the gap between the micrometer length scale of light and the secrets of the nanoworld. This is achieved by binding light to charge density oscillations of metallic nanostructures, so-called surface plasmons, which allow electromagnetic radiation to be focussed down to spots as small as a few nanometers. The book is a snapshot of recent and ongoing research and at the same time outlines our present understanding of the optical properties of metallic nanoparticles, ranging from the tunability of plasmonic resonances to the ultrafast dynamics of light-matter interaction. Beginning with a gentle introduction that highlights the basics of plasmonic interactions and plasmon imaging, the author then presents a suitable theoretical framework for the description of metallic nanostructures. This model based on this framework is first solved analytically for simple systems, and subsequently through numerical simulations for more general cases where, for example, surface roughness, nonlinear and nonlocal effects or metamaterials are investigated.

Author : Abdulhamed Alsisi
Publisher :
Page : 82 pages
File Size : 18,74 MB
Release : 2014
Category :
ISBN :

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General physical properties of electrostatic (plasmon) resonances in nanoparticles are presented. Direct calculation of the resonance values of the permittivity of nanoparticles, and subsequently their resonance frequencies, through a boundary element method is discussed. An efficient numerical approach for the calculation of resonance frequencies of a spherical nanoparticle is developed and illustrated, which is compared with theoretical results. Results of numerical approach for a spherical nanoparticle in free space and on a silicon dioxide substrate are presented and discussed.

Author :
Publisher : ScholarlyEditions
Page : 8760 pages
File Size : 50,25 MB
Release : 2012-01-09
Category : Technology & Engineering
ISBN : 1464920583

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Advances in Nanotechnology Research and Application: 2011 Edition is a ScholarlyEditions™ eBook that delivers timely, authoritative, and comprehensive information about Nanotechnology. The editors have built Advances in Nanotechnology Research and Application: 2011 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Nanotechnology in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Advances in Nanotechnology Research and Application: 2011 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.

Author : Martin Plöschner
Publisher :
Page : 248 pages
File Size : 14,83 MB
Release : 2012
Category : Laser manipulation (Nuclear physics)
ISBN :

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Optical manipulation of nanoscale objects is studied with particular emphasis on the role of plasmon resonance for enhancement of optical forces. The thesis provides an introduction to plasmon resonance and its role in confinement of light to a sub-diffraction volume. The strong light confinement and related enhancement of optical forces is then theoretically studied for a special case of nanoantenna supporting plasmon resonances. The calculation of optical forces, based on the Maxwell stress tensor approach, reveals relatively weak optical forces for incident powers that are used in typical realisations of trapping with nanoantenna. The optical forces are so weak that other non-optical effects should be considered to explain the observed trapping. These effects include heating induced convection, thermoporesis and chemical binding. The thesis also studies the optical effects of plasmon resonances for a fundamentally different application - size-based optical sorting of gold nanoparticles. Here, the plasmon resonances are not utilised for sub-diffraction light confinement but rather for their ability to increase the apparent cross-section of the particles for their respective resonant sizes. Exploiting these resonances, we realise sorting in a system of two counter-propagating evanescent waves, each at different wavelength that selectively guide gold nanoparticles of different sizes in opposite directions. The method is experimentally demonstrated for bidirectional sorting of gold nanoparticles of either 150 or 130 nm in diameter from those of 100 nm in diameter within a mixture. We conclude the thesis with a numerical study of the optimal beam-shape for optical sorting applications. The developed theoretical framework, based on the force optical eigenmode method, is able to find an illumination of the back-focal plane of the objective such that the force difference between nanoparticles of various sizes in the sample plane is maximised.

Author : Witold A. Jacak
Publisher : Cambridge University Press
Page : 325 pages
File Size : 33,16 MB
Release : 2020-09-03
Category : Science
ISBN : 1108478395

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With examples throughout, this step-by-step approach makes quantum theory of plasmons accessible to readers without specialized training in theory.