scholarly journals Numerical simulation of the near-field distribution of light spot of aperture pyramid-type optical probe with a metal tip

2010 ◽  
Vol 59 (1) ◽  
pp. 192
Author(s):  
Wang Guo-Jun ◽  
Wu Shi-Fa ◽  
Li Xu-Feng ◽  
Li Rui ◽  
Duan Jian-Min ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Field Distribution ◽  
Near Field ◽  
Optical Probe ◽  
Light Spot ◽  
Metal Tip

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

2005 ◽  
Vol 97 (10) ◽  
pp. 104322 ◽  
Author(s):  
L. Aigouy ◽  
M. Mortier ◽  
J. Giérak ◽  
E. Bourhis ◽  
Y. De Wilde ◽  
...  
Keyword(s):  
Field Distribution ◽  
Near Field ◽  
Optical Probe

Study on the Characteristics of High Speed near Field Communication Antenna Based on FDTD

2014 ◽  
Vol 1044-1045 ◽  
pp. 1362-1365
Author(s):  
Yan Feng Liu ◽  
Bing Wei
Keyword(s):  
Numerical Simulation ◽  
Field Distribution ◽  
Electric Dipole ◽  
High Speed ◽  
Near Field ◽  
Fdtd Method ◽  
Near Field Communication ◽  
Calculation Results ◽  
The Ideal

The near-field characteristics of the ideal electric dipole are analyzed in this paper. A practical ultrafast band antenna near field FDTD is made and the near field distribution of the antenna is studied by numerical simulation. The calculation results show that the FDTD method is used for the analysis of feasibility and reliability of the near-field communication antenna.

scholarly journals Experimental study and numerical simulation of near field distribution of weideband horn antenna.

2018 ◽  
Vol 2019 (10) ◽  
Author(s):  
Y.A. Amchislavskiy ◽  
◽  
I.M. Kuptsov ◽  
E.V. Bulychev ◽  
N.L. Menshikh ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Experimental Study ◽  
Field Distribution ◽  
Near Field ◽  
Horn Antenna

scholarly journals Visualization of microwave near-field distribution in sodium chloride and glucose aqueous solutions by a thermo-elastic optical indicator microscope

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Zhirayr Baghdasaryan ◽  
Arsen Babajanyan ◽  
Levon Odabashyan ◽  
Jung-Ha Lee ◽  
Barry Friedman ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Aqueous Solutions ◽  
Field Distribution ◽  
Near Field ◽  
Absorption Properties ◽  
Novel Approach ◽  
Concentration Changes ◽  
Biological Liquids ◽  
Optical Indicator ◽  
Distribution Intensity

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.

scholarly journals Dynamic near-field microwave diagnostics of lungs.

2021 ◽  
Vol 2021 (8) ◽  
Author(s):  
L.A. Bokeria ◽  
◽  
T.T. Kakuchaya ◽  
A.M. Kuular ◽  
Ye.S. Maksimovitch ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Inverse Problems ◽  
Integral Equations ◽  
Near Field ◽  
Experimental Studies ◽  
Heart Activity ◽  
Blood Content ◽  
Air Content ◽  
Microwave Diagnostics ◽  
Biomedical Diagnostics

Results of theoretical and experimental studies of the method of the near-field microwave tomography of the thorax are presented. Integral equations of inverse tomography problem of 3D blood- and air content inhomogeneities by data of multisensory measurements are obtained. Methods of air and blood content profiling in processes of breathing and heart activity by data of bistatic measurements of the scattered signal are proposed and solving algorithms of inverse problems are studied in the numerical simulation. Multifrequency and pulse measurements of scattered signals are carried out in processes of cardiorespiratory activity. By data of bistatic measurements of scattered signals parameters from the thorax, profiling relative air- and blood content profiles has been realized. Application possibilities of the method in the biomedical diagnostics are considered.

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