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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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.
|Title:||Terahertz probe for spectroscopy of sub-wavelength objects|
|Open access status:||An open access version is available from UCL Discovery|
|Additional information:||© 2012 Optical Society of America. PubMed ID: 22418501|
|UCL classification:||UCL > School of BEAMS > Faculty of Engineering Science > Electronic and Electrical Engineering|
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