Terahertz plasmonics with semiconductor surfaces and antennas

J. Gómez Rivas, A. Berrier

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

3 Citations (Scopus)

Abstract

Semiconductors have a Drude-like behavior at terahertz (THz) frequencies similar to metals at optical frequencies. Narrow band gap semiconductors have a dielectric constant with a negative real component and a relatively small imaginary component. This permittivity is characteristic of noble metals in the visible. Therefore, similar to metals at optical frequencies, semiconductors sustain surface plasmon polaritons (SPPs) or collective oscillations of free charge carriers at the interface with a dielectric. We present here a description of the characteristic lengths of SPPs on semiconductor surfaces. We also consider localized surface plasmon polaritons (LSPPs) in small semiconductor particles or plasmonic antennas. These LSPPs lead to resonances that can be tuned by varying the carrier concentration.
Original languageEnglish
Title of host publicationProceedings of the Asia Pacific Microwave Conference (APMC 2009), 7-10 Dec. 2009, Singapore
Pages1293-1296
DOIs
Publication statusPublished - 2009
Event2009 Asia Pacific Microwave Conference (APMC 2009) - Singapore
Duration: 7 Dec 200910 Dec 2009
http://www.apmc2009.org/

Conference

Conference2009 Asia Pacific Microwave Conference (APMC 2009)
Abbreviated titleAPMC 2009
CitySingapore
Period7/12/0910/12/09
Internet address

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