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Opt Lett. 2000 Aug 1;25(15):1122-4.

Near-field terahertz imaging with a dynamic aperture.

Abstract

By introduction of an optical gating beam on a semiconductor wafer, near-field terahertz (THz) imaging with a dynamic aperture has been realized. The spatial resolution is determined by the focus size of the optical gating bean and the near-field diffraction effect. THz imaging with subwavelength spatial resolution (better than 50mum) is demonstrated.

PMID:
18064291
DOI:
10.1364/ol.25.001122

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