Journal
JOURNAL OF INFRARED MILLIMETER AND TERAHERTZ WAVES
Volume 32, Issue 8-9, Pages 976-1019Publisher
SPRINGER
DOI: 10.1007/s10762-011-9809-2
Keywords
Terahertz; Near-field; Subwavelength; Microscopy
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In the last decades, many research teams working at Terahertz frequencies focused their efforts on surpassing the diffraction limit. Numerous techniques have been investigated, combining methods existing at optic wavelength with THz system such as Time Domain Spectroscopy. The actual development led on one side to a resolution as high as lambda/3000 and one the other side to a video-rate recording. The purpose of this paper is to give an overview of the history of the field, to describe the different approaches, to give examples of existing applications and to draw the perspective for this research area.
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