| 翻訳と辞書 |
| Hybrid plasmonic waveguide ： ウィキペディア英語版 |
Hybrid plasmonic waveguide
A hybrid plasmonic waveguide is an optical waveguide that achieves strong light confinement by coupling the light guided by a dielectric waveguide and a plasmonic waveguide. It is formed by separating a medium of high refractive index (usually silicon) from a metal surface (usually gold or silver) by a small gap.
== History ==
The hybrid plasmonic waveguide was first proposed by the researchers at the University of Toronto in 2007. The invention was motivated by the observation that the advantages and limitations of dielectric and plasmonic waveguides are complementary. Dielectric waveguides use total internal reflection to confine light in a high index region. They can guide light over a long distance with very low loss, but their light confinement ability is limited by diffraction. Plasmonic waveguides, on the other hand, use surface plasmon to confine light near a metal surface. The light confinement ability of plasmonic waveguides is not limited by diffraction, and, as a result, they can confine light to very small volumes. However, these guides suffer significant propagation loss because of the presence of metal as part of the guiding structure. The aim of designing the hybrid plasmonic waveguide was to combine these two different wave guiding schemes and achieve high light confinement without suffering large loss. Since the seminal work published in 2007, many different variations of this structure have been proposed. One such structure was proposed by Xiang Zhang's group of the University of California at Berkeley, who also coined the phrase hybrid plasmonic waveguide. Many other types of hybrid plasmonic waveguides have been proposed since then to improve light confinement ability or to reduce fabrication complexity.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
■ウィキペディアで「Hybrid plasmonic waveguide」の詳細全文を読む
スポンサード リンク
| 翻訳と辞書 : 翻訳のためのインターネットリソース |
Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.
|
|