Skirting terahertz waves in a photo-excited nanoslit structure

Shalaby, Mostafa, Fabiańska, Justyna, Peccianti, Marco, Ozturk, Yavuz, Vidal, Francois, Sigg, Hans, Morandotti, Roberto and Feurer, Thomas (2014) Skirting terahertz waves in a photo-excited nanoslit structure. Applied Physics Letters, 104. pp. 171115-1. ISSN 0003-6951

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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.

Item Type: Article
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Subjects: Q Science > QC Physics
Q Science > QC Physics > QC0350 Optics. Light
T Technology > TA Engineering (General). Civil engineering (General) > TA1501 Applied optics. Photonics
Depositing User: Marco Peccianti
Date Deposited: 18 Aug 2014 09:56
Last Modified: 18 Jan 2018 09:33

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