Near field distribution of solid dielectric diagonal horn antennas

AbstractIn this study, a new optical method is presented to determine the concentrations of NaCl and glucose aqueous solutions by using a thermo-elastic optical indicator microscope. By measuring the microwave near-field distribution intensity, concentration changes of NaCl and glucose aqueous solutions were detected in the 0–100 mg/ml range, when exposed to microwave irradiation at 12 GHz frequency. Microwave near-field distribution intensity decreased as the NaCl or glucose concentration increased due to the changes of the absorption properties of aqueous solution. This method provides a novel approach for monitoring NaCl and glucose in biological liquids by using a CCD sensor capable of visualizing NaCl and glucose concentrations without scanning.

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Optimizing the optical field distribution of near-field SIL optical storage system using five-zone binary phase filters

Optics Communications ◽

10.1016/j.optcom.2012.02.070 ◽

2012 ◽

Vol 285 (13-14) ◽

pp. 3042-3045 ◽

Cited By ~ 2

Author(s):

Chaolong Fang ◽

Yaoju Zhang ◽

Haiyong Zhu

Keyword(s):

Field Distribution ◽

Near Field ◽

Storage System ◽

Optical Storage ◽

Optical Field ◽

Binary Phase

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Reconstruction of the near-field distribution in an X-ray waveguide array

Journal of Applied Crystallography ◽

10.1107/s1600576717004630 ◽

2017 ◽

Vol 50 (3) ◽

pp. 701-711 ◽

Cited By ~ 2

Author(s):

Qi Zhong ◽

Lars Melchior ◽

Jichang Peng ◽

Qiushi Huang ◽

Zhanshan Wang ◽

...

Keyword(s):

Layer Thickness ◽

Field Distribution ◽

Phase Retrieval ◽

Near Field ◽

Field Pattern ◽

Waveguide Array ◽

X Ray ◽

Field Patterns ◽

Thickness Variations ◽

Far Field Pattern

Iterative phase retrieval has been used to reconstruct the near-field distribution behind tailored X-ray waveguide arrays, by inversion of the measured far-field pattern recorded under fully coherent conditions. It is thereby shown that multi-waveguide interference can be exploited to control the near-field distribution behind the waveguide exit. This can, for example, serve to create a secondary quasi-focal spot outside the waveguide structure. For this proof of concept, an array of seven planar Ni/C waveguides are used, with precisely varied guiding layer thickness and cladding layer thickness, as fabricated by high-precision magnetron sputtering systems. The controlled thickness variations in the range of 0.2 nm results in a desired phase shift of the different waveguide beams. Two kinds of samples, a one-dimensional waveguide array and periodic waveguide multilayers, were fabricated, each consisting of seven C layers as guiding layers and eight Ni layers as cladding layers. These are shown to yield distinctly different near-field patterns.

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Field distribution on metallic and dielectric nanoparticles observed with a fluorescent near-field optical probe

Journal of Applied Physics ◽

10.1063/1.1904154 ◽

2005 ◽

Vol 97 (10) ◽

pp. 104322 ◽

Cited By ~ 7

Author(s):

L. Aigouy ◽

M. Mortier ◽

J. Giérak ◽

E. Bourhis ◽

Y. De Wilde ◽

...

Keyword(s):

Field Distribution ◽

Near Field ◽

Optical Probe

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Enhanced near-field distribution inside substrates mediated with gold particle: optical vortex and bifurcation

Applied Physics A ◽

10.1007/s00339-009-5354-4 ◽

2009 ◽

Vol 97 (1) ◽

pp. 91-98 ◽

Cited By ~ 15

Author(s):

Yuto Tanaka ◽

Nikolay N. Nedyalkov ◽

Minoru Obara

Keyword(s):

Field Distribution ◽

Gold Particle ◽

Near Field ◽

Optical Vortex

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Optimization of the optical near-field distribution of metal multilayer dielectric gratings for pulse compressors

10.1117/12.2019443 ◽

2013 ◽

Author(s):

Heyuan Guan ◽

Yunxia Jin ◽

Shijie Liu ◽

Fanyu Kong ◽

Yin Du ◽

...

Keyword(s):

Field Distribution ◽

Near Field ◽

Dielectric Gratings ◽

Multilayer Dielectric

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Discharge Criterion along the Surface of Solid Dielectric in SF6 under High Pressure

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.548-549.21 ◽

2014 ◽

Vol 548-549 ◽

pp. 21-24 ◽

Cited By ~ 2

Author(s):

Daniil A. Glushkov ◽

Alexandra I. Khalyasmaa

Keyword(s):

High Pressure ◽

Electric Field ◽

Field Distribution ◽

Electric Field Distribution ◽

Dielectric Surface ◽

Field Configuration ◽

Solid Dielectric ◽

Discharge Criterion ◽

Sulphur Hexafluoride ◽

Electrode Systems

This article is devoted to the formation of a mechanism of discharge along the surface of a dielectric in sulphur hexafluoride electrode systems in different configurations. The article also addresses to the calculation of the electric field distribution and criteria for increase of discharge along the dielectric surface, depending on the field configuration, pressure and heights.

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