Thermal processes in metal-coated fiber probes for near-field experiments

2005 ◽  
Vol 87 (3) ◽  
pp. 033109 ◽  
Author(s):  
A. Ambrosio ◽  
M. Allegrini ◽  
G. Latini ◽  
F. Cacialli
Keyword(s):  
Field Experiments ◽  
Near Field ◽  
Thermal Processes ◽  
Coated Fiber ◽  
Fiber Probes

Observation of tip-to-sample heat transfer in near-field optical microscopy using metal-coated fiber probes

2005 ◽  
Vol 86 (20) ◽  
pp. 203109 ◽  
Author(s):  
P. G. Gucciardi ◽  
S. Patanè ◽  
A. Ambrosio ◽  
M. Allegrini ◽  
A. D. Downes ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Optical Microscopy ◽  
Near Field ◽  
Sample Heat ◽  
Coated Fiber ◽  
Fiber Probes

scholarly journals Optimizing the fabrication of aluminum-coated fiber probes and their application to optical near-field lithography

1998 ◽  
Vol 71 (1-4) ◽  
pp. 65-71 ◽  
Author(s):  
S Madsen ◽  
N.C.R Holme ◽  
P.S Ramanujam ◽  
S Hvilsted ◽  
J.M Hvam ◽  
...  
Keyword(s):  
Near Field ◽  
Coated Fiber ◽  
Fiber Probes

scholarly journals Oxidation of hydrogen-passivated silicon surfaces by scanning near-field optical lithography using uncoated and aluminum-coated fiber probes

1997 ◽  
Vol 82 (1) ◽  
pp. 49-53 ◽  
Author(s):  
S. Madsen ◽  
S. I. Bozhevolnyi ◽  
K. Birkelund ◽  
M. Müllenborn ◽  
J. M. Hvam ◽  
...  
Keyword(s):  
Near Field ◽  
Optical Lithography ◽  
Silicon Surfaces ◽  
Coated Fiber ◽  
Oxidation Of Hydrogen ◽  
Fiber Probes ◽  
Passivated Silicon

scholarly journals Simulation and Experimental Study of the Near Field Probe in the Form of a Folded Dipole for Measuring Glucose Concentration

2021 ◽  
Vol 11 (12) ◽  
pp. 5415
Author(s):  
Aleksandr Gorst ◽  
Kseniya Zavyalova ◽  
Aleksandr Mironchev ◽  
Andrey Zapasnoy ◽  
Andrey Klokov
Keyword(s):  
Experimental Measurement ◽  
Glucose Concentration ◽  
Field Experiments ◽  
Near Field ◽  
Vector Network Analyzer ◽  
Human Hand ◽  
Physical Parameters ◽  
Network Analyzer ◽  
Frequency Range ◽  
Average Deviation

The article investigates the near-field probe of a special design to account for changes in glucose concentration. The probe is designed in such a way that it emits radiation in both directions from its plane. In this paper, it was proposed to modernize this design and consider the unidirectional emission of the probe in order to maximize the signal and reduce energy loss. We have done extensive research for both bidirectional and unidirectional probe designs. Numerical simulations and field experiments were carried out to determine different concentrations of glucose (0, 4, 5.3, 7.5 mmol/L). Numerical modeling of a unidirectional probe showed that the interaction of radiation generated by such a probe with a multilayer structure simulating a human hand showed a better result and high sensitivity compared to a bidirectional probe. Further, based on the simulation results, a phantom (physical model) of a human hand was recreated from layers with dielectric properties as close as possible to the properties of materials during simulation. The probe was constructed from a copper tube and matched both the geometric and physical parameters of the model. The experimental measurement was carried out using a vector network analyzer in the frequency range 2–10 GHz. The experimental measurement was carried out using a vector network analyzer in the frequency range 2–10 GHz for the unidirectional and bidirectional probes. Further, the results of the experiment were compared with the results of numerical simulation. According to the results of multiple experiments, it was found that the average deviation between the concentrations was 2 dB for a unidirectional probe and 0.4 dB for a bidirectional probe. Thus, the sensitivity of the unidirectional probe was 1.5 dB/(mmol/L) for the bidirectional one 0.3 dB/(mmol/L). Thus, the improved design of the near-field probe can be used to record glucose concentrations.

Investigation of heating effects in near-field experiments with luminescent organic semiconductors

2004 ◽  
Vol 147 (1-3) ◽  
pp. 165-169 ◽  
Author(s):  
G. Latini ◽  
A. Downes ◽  
O. Fenwick ◽  
A. Ambrosio ◽  
M. Allegrini ◽  
...  
Keyword(s):  
Organic Semiconductors ◽  
Field Experiments ◽  
Near Field ◽  
Heating Effects

Thermal-expansion effects in near-field optical microscopy fiber probes induced by laser light absorption

1999 ◽  
Vol 75 (21) ◽  
pp. 3408-3410 ◽  
Author(s):  
P. G. Gucciardi ◽  
M. Colocci ◽  
M. Labardi ◽  
M. Allegrini
Keyword(s):  
Thermal Expansion ◽  
Optical Microscopy ◽  
Light Absorption ◽  
Laser Light ◽  
Near Field ◽  
Fiber Probes

A simple chemical etching technique for reproducible fabrication of robust scanning near-field fiber probes

1998 ◽  
Vol 69 (2) ◽  
pp. 437-439 ◽  
Author(s):  
Yung-Hui Chuang ◽  
Kuo-Gung Sun ◽  
Chia-Jen Wang ◽  
J. Y. Huang ◽  
Ci-Ling Pan
Keyword(s):  
Chemical Etching ◽  
Near Field ◽  
Etching Technique ◽  
Simple Chemical ◽  
Fiber Probes
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