Terahertz emission from nano-structured metal surfaces

Gregor Welsh, Neil Hunt, Klaas Wynne

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


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
Number of pages3
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
ISSN (Print)0172-6218


Conference15th International Conference on Ultrafast Phenomena
CountryUnited States
CityPacific Grove


  • 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).. https://doi.org/10.1007/978-3-540-68781-8_248