Terahertz near-field microscopy based on a collection mode detector

O. Mitrofanov, I. Brener, R. Harel, J. D. Wynn, L. N. Pfeiffer, K. W. West, J. Federici

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Abstract

We report on the development of a collection mode near-field probe for the terahertz spectral range. The near-field detector is based on an aperture type probe with dimensions of 30×30 μm2 The collection mode technique provides higher sensitivity and higher resolution than the similar illumination mode approach. Spatial resolution better than 40 μm is demonstrated for a broad spectrum of 300-600 μm, which equals to λ/15 for the longest wavelength. The observed resolution is determined by the size of the probe aperture.

Original languageEnglish (US)
Pages (from-to)3496-3498
Number of pages3
JournalApplied Physics Letters
Volume77
Issue number22
DOIs
StatePublished - Nov 27 2000

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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