Strathprints Home | Open Access | Browse | Search | User area | Copyright | Help | Library Home | SUPrimo

Terahertz-pulse emission through excitation of surface plasmons in metallic nanostructures - art. no. 68921E

Welsh, G.H. and Wynne, Klaas (2008) Terahertz-pulse emission through excitation of surface plasmons in metallic nanostructures - art. no. 68921E. In: Ultrafast phenomena in semiconducters and nanostructures materials XII. Proceedings of the Society of Photo-optical Instrumentation Engineers (SPIE) . Society of Photo-optical Instrumentation Engineers (SPIE), Washington, E8921-E8921. ISBN 978-0-8194-7067-6

Full text not available in this repository. (Request a copy from the Strathclyde author)

Abstract

The second-order processes of optical rectification and photoconduction are well known and widely used to produce ultrafast electromagnetic pulses in the terahertz frequency domain. We present a new form of rectification relying on the excitation of surface plasmons (SPs) in metallic nanostructures. Multiphoton ionization and ponderomotive acceleration of electrons in the enhanced evanescent field of the SPs, results in a femtosecond current surge and emission of terahertz electromagnetic radiation. Using gold, this rectification process is third or higher order in the incident field.

Item type: Book Section
ID code: 27277
Keywords: ultrafast, terahertz radiation, surface plasmons, nanostructures, Physics
Subjects: Science > Physics
Department: Faculty of Science > Physics
Related URLs:
    Depositing user: Miss Leonie Airley
    Date Deposited: 31 Aug 2010 13:18
    Last modified: 04 Oct 2012 16:23
    URI: http://strathprints.strath.ac.uk/id/eprint/27277

    Actions (login required)

    View Item