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Physics in Medicine and Biology, 2002
A near-field probe is described that enables high spatial resolution imaging with terahertz (THz) pulses. The spatial resolution capabilities of the system lie in the range of few microns and we demonstrate a resolution of 7 microm using broad-banded THz pulses with an intensity maximum near 0.5 THz.
John F, Federici +8 more
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A near-field probe is described that enables high spatial resolution imaging with terahertz (THz) pulses. The spatial resolution capabilities of the system lie in the range of few microns and we demonstrate a resolution of 7 microm using broad-banded THz pulses with an intensity maximum near 0.5 THz.
John F, Federici +8 more
openaire +2 more sources
Near Field Optics and Scanning Near Field Optical Microscopy
1996By near field optics the diffraction limit of light microscopy can be avoided. Contact imaging by energy transfer is a simple scheme to achieve this goal. Scanning Near Field Optical Microscopy (SNOM) using a tapered metal coated fibre with an aperture at the tip seems to reach a resolution limit at 30 nm.
U. C. Fischer +5 more
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1998
In Chap. 12 we derived the Thompson-Gray measurement model using both a direct approach and an approach based on reciprocity relations. In either case, we assumed the incident and scattered waves could be treated as quasi-plane waves modified by appropriate diffraction correction terms and the scattering amplitude was assumed to be slowly varying so ...
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In Chap. 12 we derived the Thompson-Gray measurement model using both a direct approach and an approach based on reciprocity relations. In either case, we assumed the incident and scattered waves could be treated as quasi-plane waves modified by appropriate diffraction correction terms and the scattering amplitude was assumed to be slowly varying so ...
openaire +1 more source
Embedding of near-fields with real valuations into planar near-fields
Results in Mathematics, 1984The main result of this note is: Let \((F,F^{\phi})\) be a Dickson pair of near-fields, where \(\phi\) is a coupling homomorphism. If there exists a real valuation \(V: F\to\Gamma \cup\{-\infty\},\) where, as usual, \(\Gamma (+,
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Near-field radiative heat transfer in many-body systems
Reviews of Modern Physics, 2021Svend-Age Biehs +2 more
exaly
Codebook design and beam training for extremely large-scale RIS: Far-field or near-field?
China Communications, 2022Xiuhong Wei, Linglong Dai, Yajun Zhao
exaly
Phase-Resolved Mapping of the Near-Field Vector and Polarization State in Nanoscale Antenna Gaps
Nano Letters, 2010Martin Schnell +2 more
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