Download or read book Plasmonics in the Near infrared written by Kevin Tetz and published by . This book was released on 2006 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt: The field of nanophotonics is finding myriad applications in telecommunications and information technology, microscopy, lighting, and sensing. There is general interest in highly confined and nanoscale optical modes for a number of these applications, with a particular interest in structures that confine electromagnetic fields and energy in volumes smaller than the free space wavelength. Plasmonics, the utilization of coupled photon-plasmon waves in systems with free electrons, in micro- and nanoscale geometric structures has attracted significant recent attention for these purposes. In this dissertation we explore surface plasmon-polariton (SPP) fields, on nanostructured metal-dielectric boundaries, at frequencies in the near-infrared portion of the electromagnetic spectrum. To couple to these SPP modes from free-space propagating light, arrays of nanoholes etched in metal films are employed. We then utilize a variety of experimental techniques that investigate the physics of SPPs in space, time, and frequency. Various physical phenomena, including enhanced transmission effects and resonantly excited and propagating surface electromagnetic modes, are observed, studied, and explained. We begin by discussing the basics of SPP excitation and modal propagation properties and present an analytical investigation of gain assisted propagation. We next investigate the spatial and spectral frequency dependent transmission through nanohole arrays. We present novel experimental and analytic results of polarization dependent Fano-type lineshape profiles present in enhanced transmission due to SPP excitation. We further present a method for excitation and direct imaging of SPPs from nanohole arrays and demonstrate coupling to a variety of modes with different in-plane propagating wavevector components. This method is extended to incorporate ultrashort laser pulse excitation and enables space-time imaging of ultrashort SPP fields, both in spatial amplitude and phase, with femtosecond time scale resolution. We ultimately describes the application of this work to the making of a highly parallelized sensor to measure chemical reactions at a surface by generating spatially resolved, reaction dependent, spatial and spectral frequency information.
Download or read book Near infrared Plasmonics in Planar Tunable Structures written by Evgenij Travkin and published by . This book was released on 2022* with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Plasmonics Fundamentals and Applications written by Stefan Alexander Maier and published by Springer Science & Business Media. This book was released on 2007-05-16 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: Considered a major field of photonics, plasmonics offers the potential to confine and guide light below the diffraction limit and promises a new generation of highly miniaturized photonic devices. This book combines a comprehensive introduction with an extensive overview of the current state of the art. Coverage includes plasmon waveguides, cavities for field-enhancement, nonlinear processes and the emerging field of active plasmonics studying interactions of surface plasmons with active media.
Download or read book Near Field Optics and Surface Plasmon Polaritons written by Satoshi Kawata and published by Springer Science & Business Media. This book was released on 2001-06-20 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: This up-to-date overview describes in detail the physics of localized surface plasmon polaritons excited near fine metallic structures and the principles of near-field optics and microscopy related to this localized field. It also covers wider fields, from local spectroscopy to atom manipulation.
Download or read book Thermoplasmonics written by Guillaume Baffou and published by Cambridge University Press. This book was released on 2017-10-19 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plasmonics is an important branch of optics concerned with the interaction of metals with light. Under appropriate illumination, metal nanoparticles can exhibit enhanced light absorption, becoming nanosources of heat that can be precisely controlled. This book provides an overview of the exciting new field of thermoplasmonics and a detailed discussion of its theoretical underpinning in nanophotonics. This topic has developed rapidly in the last decade, and is now a highly-active area of research due to countless applications in nanoengineering and nanomedicine. These important applications include photothermal cancer therapy, drug and gene delivery, nanochemistry and photothermal imaging. This timely and self-contained text is suited to all researchers and graduate students working in plasmonics, nano-optics and thermal-induced processes at the nanoscale.
Download or read book Plasmonics and Plasmonic Metamaterials written by G. Shvets and published by World Scientific. This book was released on 2012 with total page 469 pages. Available in PDF, EPUB and Kindle. Book excerpt: Manipulation of plasmonics from nano to micro scale. 1. Introduction. 2. Form-Birefringent metal and its plasmonic anisotropy. 3. Plasmonic photonic crystal. 4. Fourier plasmonics. 5. Nanoscale optical field localization. 6. Conclusions and outlook -- 11. Dielectric-loaded plasmonic waveguide components. 1. Introduction. 2. Design of waveguide dimensions. 3. Sample preparation and near-field characterization. 4. Excitation and propagation of guided modes. 5. Waveguide bends and splitters. 6. Coupling between waveguides. 7. Waveguide-ring resonators. 8. Bragg gratings. 9. Discussion-- 12. Manipulating nanoparticles and enhancing spectroscopy with surface plasmons. 1. Introduction. 2. Propulsion of gold nanoparticles with surface plasmon polaritons. 3. Double resonance substrates for surface-enhanced raman spectroscopy. 4. Conclusions and outlook -- 13. Analysis of light scattering by nanoobjects on a plane surface via discrete sources method. 1. Introduction. 2. Light scattering by a nanorod. 3. Light scattering by a nanoshell. 4. Summary -- 14. Computational techniques for plasmonic antennas and waveguides. 1. Introduction. 2. Time domain solvers. 3. Frequency domain solvers. 4. Plasmonic antennas. 5. Plasmonic waveguides. 6. Advanced structures. 7. Conclusions
Download or read book Near infrared Plasmonics with Vacancy Doped Semiconductor Nanocrystals written by Ilka Kriegel and published by . This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nanostructured Systems written by and published by Academic Press. This book was released on 1992-04-08 with total page 409 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first available volume to consolidate prominent topics in the emerging field of nanostructured systems. Recent technological advancements have led to a new era of nanostructure physics, allowing for the fabrication of nanostructures whose behavior is dominated by quantum interference effects. This new capability has enthused the experimentalist and theorist alike. Innumerable possibilities have now opened up for physical exploration and device technology on the nanoscale. This book, with contributions from five pioneering researchers, will allow the expert and novice alike to explore a fascinating new field.Provides a state-of-the-art review of quantum-scale artificially nanostructured electronic systemsIncludes contributions by world-known experts in the fieldOpens the field to the non-expert with a concise introductionFeatures discussions of:Low-dimensional condensed matter physicsProperties of nanostructured, ultrasmall electronic systemsMesoscopic physics and quantum transportPhysics of 2D electronic systems
Download or read book Near Infrared Surface Plasmon Resonance Spectroscopy written by Michelle Nga Doan and published by . This book was released on 2004 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Near infrared Nano optical Elements Using Plasmonic Nanoantennas written by Leo-Jay Black and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Gold Nanostars written by Giuseppe Chirico and published by Springer. This book was released on 2015-08-03 with total page 93 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Brief focuses on the synthesis, functionalization techniques, optical properties and biomedical application of gold nanostars (GNS). Various facilities of gold nanostars synthesis as well as functionalization of GNS with PEG, organic dyes, bioactive compounds are discussed. The authors discuss physical origin of the Localized Surface Plasmon Resonances and the way the nano-environment affects them. The implication of the LSPR of gold nanostars surface enhanced Raman scattering is also discussed. The emphasis has been done on the application of GNS for current and emerge needs of medicine, biology and pharmacy. Moreover, properties of gold nanostars as contrast agents for in vivo imaging and interaction of GNS with cells are also discussed in this Brief.
Download or read book Introduction to Plasmonics written by Sabine Szunerits and published by CRC Press. This book was released on 2015-03-24 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plasmonics is a highly dynamic field, and a number of researchers and scientists from other disciplines have become involved in it. This book presents the most widely employed approaches to plasmonics and the numerous applications associated with it. There are several underlying elements in plasmonics research. Advances in nanoscience and nanotechn
Download or read book An Introduction To Graphene Plasmonics written by P.A.D Goncalves and published by World Scientific. This book was released on 2016-04-25 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is meant as an introduction to graphene plasmonics and aims at the advanced undergraduate and graduate students entering the field of plasmonics in graphene. In it different theoretical methods are introduced, starting with an elementary description of graphene plasmonics and evolving towards more advanced topics. This book is essentially self-contained and brings together a number of different topics about the field that are scattered in the vast literature. The text is composed of eleven chapters and of a set of detailed appendices. It can be read in two different ways: Reading only the chapters to get acquainted with the field of plasmonics in graphene or reading the chapters and studying the appendices to get a working knowledge of the topic. The study of the material in this book will bring the students to the forefront of the research in this field.
Download or read book Study of Plasmonic Properties of the Gold Nanorods in the Visible to Near Infrared Light Regime written by Pijush Kanti Ghosh and published by . This book was released on 2016 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanostructures of noble metals show unique plasmonic behavior in the visible to near-infrared light range. Gold nanostructures exhibit a particularly strong plasmonic response for these wavelengths of light. In this study we have investigated optical enhancement and absorption of gold nanorods with different thickness using finite element method simulations. This study reports on the resonance wavelength of the sharp-corner and round-corner rectangles of constant length 100 nm and width 60 nm. The result shows that resonance wavelength depends on the polarization of the incident light; there also exists a strong dependence of the optical enhancement and absorption on the thickness of gold nanorods.
Download or read book Ferrohydrodynamics written by R. E. Rosensweig and published by Courier Corporation. This book was released on 2013-12-10 with total page 369 pages. Available in PDF, EPUB and Kindle. Book excerpt: Clear, comprehensive treatment of behavior and dynamics of magnetic fluids explores electromagnetism and fields, magnetocaloric energy conversion, more. For graduate students and researchers in physics, engineering, and math.
Download or read book Surface Plasmon Nanophotonics written by Mark L. Brongersma and published by Springer. This book was released on 2007-09-18 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses a new class of photonic devices, known as surface plasmon nanophotonic structures. The book highlights several exciting new discoveries, while providing a clear discussion of the underlying physics, the nanofabrication issues, and the materials considerations involved in designing plasmonic devices with new functionality. Chapters written by the leaders in the field of plasmonics provide a solid background to each topic.
Download or read book Hybrid Plasmonics for Energy Harvesting and Sensing of Radiation and Heat written by Mina Shiran Chaharsoughi and published by Linköping University Electronic Press. This book was released on 2020-02-03 with total page 69 pages. Available in PDF, EPUB and Kindle. Book excerpt: The special optical properties of subwavelength metallic structures have opened up for numerous applications in different fields. The interaction of light with metal nanostructures leads to the excitation of collective oscillations of conduction-band electrons, known as plasmons. These plasmon excitations are responsible for the high absorption and high scattering of light in metallic nanostructures. High absorption of light and the subsequent temperature increase in the nanostructures make them suitable as point-like heat sources that can be controlled remotely by light. The research presented in this thesis focuses on the development and studies of hybrid devices that combine light-induced heating in plasmonic nanostructures with other materials and systems. Particular focus is put on hybrid organic-inorganic systems for applications in energy harvesting as well as in heat and radiation sensing. Harvesting energy from light fluctuations was achieved in a hybrid device consisting of plasmonic gold nanodisk arrays and a pyroelectric copolymer. In this concept, fast and efficient light-induced heating in the gold nanodisks modulated the temperature of the pyroelectric layer, which could be used to extract electrical energy from fluctuations in simulated sunlight. Integrating plasmonic nanostructures with complementary materials can also provide novel hybrid sensors, for monitoring of temperature, heat flux and radiation. In this thesis work, a hybrid sensor was designed based on the combination of a plasmonic gold nanohole layer with a pyroelectric copolymer and an ionic thermoelectric gel. The gold nanohole arrays acted both as broadband light absorbers in the visible to near-infrared spectral range of the solar spectrum and also as one of the electrodes of the sensor. In contrast to the constituent components when used separately, the hybrid sensor could provide both fast and stable signals upon heat or radiation stimuli, as well as enhanced equilibrium signals. Furthermore, a concept for heat and radiation mapping was developed that was highly sensitive and stable despite its simple structure. The concept consisted of a gel-like electrolyte connecting two separated metal nanohole electrodes on a substrate. Resembling traditional thermocouples, this concept could autonomously detect temperature changes but with several orders of magnitudes higher sensitivity. Owing to its promising sensing properties as well as its compatibility with inexpensive mass production methods on flexible substrates, such concept may be particularly interesting for electronic skin applications for health monitoring and for humanoid robotics. Finally, we improved the possibilities for the temperature mapping of the concept by modifying the structure from lateral to vertical form. Similar to the lateral device, the vertical temperature sensor showed high temperature sensitivity and stability in producing signals upon temperature changes.
