نتایج جستجو برای: plasmonics

تعداد نتایج: 1288  

Journal: :Photonics 2021

Metals, semiconductors, metamaterials, and various two-dimensional materials with plasmonic dispersion exhibit numerous exotic physical effects in the presence of an external bias, for example static magnetic field or electric current. These phenomena range from Faraday rotation light propagating bulk to strong confinement directionality guided modes on surface are a consequence breaking Lorent...

Journal: :Applied physics reviews 2023

In the past twenty years, we have reached a broad understanding of many light-driven phenomena in nanoscale systems. The temporal dynamics excited states are instead quite challenging to explore, and, at same time, crucial study for origin fundamental physical and chemical processes. this review examine current state prospects ultrafast driven by plasmons both from applied point view. This rese...

Journal: :Nanoscale 2015
Xiaoyang Duan Song Yue Na Liu

Chiral nanoplasmonics exhibits great potential for novel nanooptical devices due to the generation of a strong chiroptical response within nanoscale metallic structures. Recently, a number of different approaches have been utilized to create chiral nanoplasmonic structures. However, particularly for tailoring nanooptical chiral sensing devices, the understanding of the resulting chiroptical res...

Journal: :Nano letters 2010
Paloma A Huidobro Maxim L Nesterov Luis Martín-Moreno Francisco J García-Vidal

A new strategy to control the flow of surface plasmon polaritons at metallic surfaces is presented. It is based on the application of the concept of transformation optics to devise the optical parameters of the dielectric medium placed on top of the metal surface. We describe the general methodology for the design of transformation optical devices for surface plasmons and analyze, for proof-of-...

Journal: :Optics express 2012
Jinqi Wang Shuchang Liu Z Valy Vardeny Ajay Nahata

We demonstrate that liquid metals support surface plasmon-polaritons (SPPs) at terahertz (THz) frequencies, and can thus serve as an attractive material system for a wide variety of plasmonic and metamaterial applications. We use eutectic gallium indium (EGaIn) as the liquid metal injected into a polydimethylsiloxane (PDMS) mold fabricated by soft lithography techniques. Using this approach, we...

2016
Lei Gu J. Livenere G. Zhu Evgenii E. Narimanov M. A. Noginov E. E. Narimanov

Journal: :مهندسی برق مدرس 0
mohammad javad mohammad zamani phd student, department of electrical and computer engineering, tarbiat modarres mohammad kazem moravvej-farshi professor of electrical and computer engineering, tarbiat modarres mohammad neshat school of electrical and computer engineering, university of tehran, tehran, iran.

we propose a new generation of unbiased (bias-free) antenna-less cw thz photomixer emitters array made of asymmetric msm gratings with subwavelength pitch, operating in optical near-field regime. we take advantage of the size effects in near-field optics and electrostatics to demonstrate the possibility of enhancing the thz power by four orders of magnitude, as compared with a similar array of ...

2010
Daan Lenstra Ruud Schropp

s 9 A Novel Absorber Materials 9 L Light Trapping 31 P Plasmonics 47 M Modelling 57 Organizing Committee 72 Scientific Advisory Board 73

Journal: :Philosophical transactions. Series A, Mathematical, physical, and engineering sciences 2011
W L Barnes

Our ability to control and harness light is undergoing a revolution, one that exploits the special properties of metals and our ability to structure them on a subwavelength scale. The materials that enable such control involve plasmonic and metallic metamaterials, materials that provide challenges for physicists and engineers that demand a multi-disciplinary approach. In June 2010, Alastair Hib...

2008
Kevin F. MacDonald Zsolt L. Sámson Mark I. Stockman Nikolay I. Zheludev

Surface plasmon polaritons, propagating bound oscillations of electrons and light at a metal surface, have great potential as information carriers for next-generation, highly integrated nanophotonic devices1,2. Since the term ‘active plasmonics’ was coined in 20043, a number of techniques for controlling the propagation of guided surface plasmon polariton signals have been demonstrated4–7. Howe...

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