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.
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
CountryUnited States
CityPacific Grove
Period30/07/064/08/06

Fingerprint

metal surfaces
rectification
radiation
gratings
laser beams
gold
silicon dioxide
air

Keywords

  • terahertz emission
  • nano-structured
  • metal surface

Cite this

Welsh, G., Hunt, N., & Wynne, K. (2007). Terahertz emission from nano-structured metal surfaces. In P. Corkum, D. Jonas, RJD. Miller, & AM. Weiner (Eds.), Ultrafast Phenomena XV (pp. 778-780). (Springer series in chemical physics ; Vol. 88). Berlin. https://doi.org/10.1007/978-3-540-68781-8_248
Welsh, Gregor ; Hunt, Neil ; Wynne, Klaas. / Terahertz emission from nano-structured metal surfaces. Ultrafast Phenomena XV. editor / P Corkum ; D Jonas ; RJD Miller ; AM Weiner. Berlin, 2007. pp. 778-780 (Springer series in chemical physics ).
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Welsh, G, Hunt, N & Wynne, K 2007, Terahertz emission from nano-structured metal surfaces. in P Corkum, D Jonas, RJD Miller & AM Weiner (eds), Ultrafast Phenomena XV. Springer series in chemical physics , vol. 88, Berlin, pp. 778-780, 15th International Conference on Ultrafast Phenomena , Pacific Grove, United States, 30/07/06. https://doi.org/10.1007/978-3-540-68781-8_248

Terahertz emission from nano-structured metal surfaces. / Welsh, Gregor; Hunt, Neil; Wynne, Klaas.

Ultrafast Phenomena XV. ed. / P Corkum; D Jonas; RJD Miller; AM Weiner. Berlin, 2007. p. 778-780 (Springer series in chemical physics ; Vol. 88).

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

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AB - 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.

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Welsh G, Hunt N, Wynne K. Terahertz emission from nano-structured metal surfaces. In Corkum P, Jonas D, Miller RJD, Weiner AM, editors, Ultrafast Phenomena XV. Berlin. 2007. p. 778-780. (Springer series in chemical physics ). https://doi.org/10.1007/978-3-540-68781-8_248