Surface plasmon polaritons at linearly graded semiconductor interfaces

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27640%2F15%3A86095605" target="_blank" >RIV/61989100:27640/15:86095605 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1364/OE.23.006264" target="_blank" >http://dx.doi.org/10.1364/OE.23.006264</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1364/OE.23.006264" target="_blank" >10.1364/OE.23.006264</a>

Result language

angličtina

Original language name

Surface plasmon polaritons at linearly graded semiconductor interfaces

Original language description

New results are reported on investigation of dispersion curves for surface plasmon polaritons (SPPs) at an inhomogenously doped semiconductor/dielectric interface whereby the dielectric is represented by the same undoped semiconductor. The doped semiconductor is described by its frequency-dependent permittivity that varies with the depth. It is shown that a transition layer (TL) with a linear change in carrier concentration supports one branch dispersion curve regardless of the TL thickness. The obtained dispersion curves reach a maximum at a finite frequency depending on the TL thickness, and subsequently asymptotically approach the zero frequency in the shortwave limit. Therefore two surface plasmon modes are supported at a given frequency: a long-wave mode with a positive group velocity and a short-wave mode with a negative group velocity. A condition of a zero group velocity can be satisfied by tuning the TL layer. It is shown that the conventional dispersion relation for SPPs at a

Czech name

—

Czech description

—

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BH - Optics, masers and lasers

OECD FORD branch

—

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2015

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

OPTICS EXPRESS

ISSN

1094-4087

e-ISSN

—

Volume of the periodical

23

Issue of the periodical within the volume

5

Country of publishing house

US - UNITED STATES

Number of pages

13

Pages from-to

6264-6276

UT code for WoS article

000350878500076

EID of the result in the Scopus database

—