Erscheinungsdatum: 01.09.2010, Medium: Taschenbuch, Einband: Kartoniert / Broschiert, Titel: Plasmon Modes for Terahertz Detection, Titelzusatz: Terahertz Plasmon Modes in Grating Coupled Double Quantum Well Field Effect Transistors, Autor: Peralta, Xomalin, Verlag: LAP Lambert Academic Publishing, Sprache: Englisch, Schlagworte: Physik, Rubrik: Physik // Astronomie, Sonstiges, Seiten: 128, Informationen: Paperback, Gewicht: 209 gr, Verkäufer: averdo
Plasmon Modes for Terahertz Detection ab 58.99 € als Taschenbuch: Terahertz Plasmon Modes in Grating Coupled Double Quantum Well Field Effect Transistors. Aus dem Bereich: Bücher, Wissenschaft, Physik,
Collective Plasmon-Modes in Gain Media ab 53.49 € als pdf eBook: Quantum Emitters and Plasmonic Nanostructures. Aus dem Bereich: eBooks, Fachthemen & Wissenschaft, Wissenschaften allgemein,
A study of improving the performance of surface plasmon resonance based biosensors is presented in this book, which is achieved by reducing the noisy effects of optical modes such as Fabry-Pérot modes within the prism of the sensor. We showed that using single or multiple layers of anti-reflection coating on top of the biosensor prism helps the Fabry-Pérot mode propagate out of the prism easily and thus rids the equipment of the noisy effects to a significant extent.
This book studies various effects related to the excitation of surface plasmons in different kinds of plasmonic nanostructures. We start with a general introduction of the field of plasmonics in Chapter 1, where we discuss both propagating surface plasmon polaritons (SPPs) and localized surface plasmons (LSPs), and how they are related to each other through Bohr condition. In Chapter 2 we demonstrate a new mechanism to achieve complete spectral gaps without periodicity along the propagation direction based on the coupling of backward and forward modes supported by plasmonic nanostructures. In Chapter 3 we introduce the concept of plasmonic potentials and demonstrate how to obtain different kinds of potentials for SPPs in various modulated metal-dielectric-metal structures. We further show efficient beam shaping in such potentials. In Chapter 4 we study scattering pattern shaping involving optically-induced magnetic responses within nanoparticles. We have achieved both unidirectional forward scattering with individual core-shell nanoparticles and polarization-independent Fano resonances in such nanparticle arrays. At the end we discuss the challenges and future developments.
Metamaterial design at optical frequencies oftentimes makes of controllable plasmonic interactions. Light can excite collective oscillations of conduction band electrons on a metallic nanostructure. These oscillations result in localized surface plasmon modes which can provide high confinement of fields at metal-dielectric interfaces at nanoscale. Additionally scattering and absorption characteristics of plasmon modes can be controlled by geometrical features of the metallic nanostructures. This ease of controllability has lead to the development of new concepts in light manipulation and enhancement of light-material interactions. Fano resonance and plasmonic induced transparency (PIT) are among the most promising of those. The interference between different plasmon modes induced on nanostructures generates PIT/Fano resonance at optical frequencies. The unusual dispersion characteristics observed within the PIT window can be used for designing optical metamaterials to be used in various applications including bio-chemical sensing, slow light, modulation, perfect absorption, and all-optical switching.