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Skirting terahertz waves in a photo-excited nanoslit structure

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posted on 2023-06-08, 17:52 authored by Mostafa Shalaby, Justyna Fabianska, Marco Peccianti, Yavuz Ozturk, Francois Vidal, Hans Sigg, Roberto Morandotti, Thomas Feurer
Terahertz fields can be dramatically enhanced as they propagate through nanometer-sized slits. The enhancement is mediated by a significant accumulation of the induced surface charges on the surrounding metal. This enhancement is shown here to be dynamically modulated while the nanoslits are gradually shunted using a copropagating optical beam. The terahertz fields are found to skirt the nanoscale photo-excited region underneath the slits, scattering to the far field and rigorously mapping the near field.

History

Publication status

  • Published

File Version

  • Published version

Journal

Applied Physics Letters

ISSN

0003-6951

Publisher

American Institute of Physics

Volume

104

Page range

171115-1

Department affiliated with

  • Physics and Astronomy Publications

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2014-08-18

First Open Access (FOA) Date

2018-01-18

First Compliant Deposit (FCD) Date

2014-08-18

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