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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Hanham, Stephen M.
Imperial College London
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (8/8 displayed)
- 2023High-Q 100 ghz photonic crystal resonator fabricated from a cyclic olefin copolymercitations
- 2017Microwave study of field-effect devices based on graphene/aluminum nitride/graphene structurescitations
- 2016Measurement of the permittivity and loss of high-loss materials using a Near-Field Scanning Microwave Microscopecitations
- 2016Microwave-to-terahertz dielectric resonators for liquid sensing in microfluidic systemscitations
- 2015Dielectric measurements of nanoliter liquids with a photonic crystal resonator at terahertz frequenciescitations
- 2014A near-field scanning microwave microscope for measurement of the permittivity and loss of high-loss materialscitations
- 2011Microwave Debye relaxation analysis of dissolved proteinscitations
- 2008High efficiency excitation of dielectric rods using a magnetic ring currentcitations
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document
A near-field scanning microwave microscope for measurement of the permittivity and loss of high-loss materials
Abstract
<p>The design and calibration of a Near-Field Scanning Microwave Microscope (NSMM) for measurement of permittivity and loss on the small scale are described. The instrument described uses a wire probe that is electromagnetically coupled to a resonant cavity. Using an electrostatic model based on image charges (Gao and Xiang 1998) permittivity and loss may be determined. The paper describes progress in two specific areas: (i) The implementation of an optical beam-deflection method for obtaining contact mode between the probe tip and specimens. (ii) Improvements to the calibration process to improve the traceability and accuracy of the measurement of loss by using the Laplacian 'complex frequency' in the image-charge model. This is demonstrated by measurements on polar liquids.</p>