Mitrofanov, O;
Renaud, CC;
Seeds, AJ;
(2012)
Terahertz probe for spectroscopy of sub-wavelength objects.
Optics Express
, 20
(6)
6197 - 6202.
10.1364/OE.20.006197.
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Abstract
A system of two probes is designed for terahertz (THz) time-domain spectroscopy of sub-wavelength size objects. A twin-needle probe confines broadband THz pulses spatially by means of surface plasmon waves to a sub-wavelength spot smaller than 10 microns. The confined pulses are detected within the near-field zone of the twin-needle probe by a sub-wavelength aperture probe. The system allows THz spectroscopy to be applied to single micrometer-size objects in the 1-2.5THz region.
| Type: | Article |
|---|---|
| Title: | Terahertz probe for spectroscopy of sub-wavelength objects |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1364/OE.20.006197 |
| Publisher version: | http://dx.doi.org/10.1364/OE.20.006197 |
| Language: | English |
| Additional information: | © 2012 Optical Society of America. PubMed ID: 22418501 |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1344799 |
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