Terahertz emission from nano-structured metal surfaces

Gregor Welsh, Neil Hunt, Klaas Wynne

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

Abstract

Nanostructured metal surfaces were created by depositing a 30 nm layer of bulk gold onto a periodic fused silica transmission grating. By exciting this with a femtosecond laser beam, in air, results in terahertz radiation being produced. This emission is angle dependent. Furthermore, the emitted radiation has a third order power dependence ruling out the chi((2)) process, optical rectification.
Original languageEnglish
Title of host publicationUltrafast Phenomena XV
EditorsP Corkum, D Jonas, RJD Miller, AM Weiner
Place of PublicationBerlin
Pages778-780
Number of pages3
DOIs
Publication statusPublished - 2007
Event15th International Conference on Ultrafast Phenomena - Pacific Grove, United States
Duration: 30 Jul 20064 Aug 2006

Publication series

NameSpringer series in chemical physics
PublisherSpringer-Verlag
Volume88
ISSN (Print)0172-6218

Conference

Conference15th International Conference on Ultrafast Phenomena
Country/TerritoryUnited States
CityPacific Grove
Period30/07/064/08/06

Keywords

  • terahertz emission
  • nano-structured
  • metal surface

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