Near-field microwave microscopy based on ferrite disk sensors with magnetostatic resonances

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

Recently, using near-field scanning microwave microscopy (NSMM) is gaining popularity in many areas. However as of today in areas of medical diagnostics and nondestructive test it fails to meet the expectations. The conventional NSMM are measuring only by displacement of resonance frequency or by decrease of Q-factor which depends from dielectric and conductivity properties of materials. Because in such areas the relative permittivity practically is the same and as a result the contrast is too small for good detection what limit the performance of conventional NSMM performance. We propose a novel near-field microwave sensor with application to material characterization and biology. The sensor is based on a subwavelength ferrite-disk resonator with magnetostatic (MS) oscillations. Strong energy concentration and chiral properties of the near fields originated from the MS resonators allow effective measuring material parameters in microwaves, both for ordinary structures and objects with chiral properties. Recent experiments inspire optimism for further research, were shown the ability to determine properties of material not only by spectral displacement but also by refers to the differential absorption of left and right circularly polarized wave. The ability which itself is very important for effective sensing of biological material and living tissues.

Original languageEnglish
Title of host publicationEuropean Microwave Week 2014
Subtitle of host publicationConnecting the Future, EuMW 2014 - Conference Proceedings; EuMC 2014: 44th European Microwave Conference
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages291-294
Number of pages4
ISBN (Electronic)9782874870354
DOIs
StatePublished - 15 Dec 2014
Event2014 44th European Microwave Conference, EuMC 2014 - Held as Part of the 17th European Microwave Week, EuMW 2014 - Rome, Italy
Duration: 6 Oct 20149 Oct 2014

Publication series

NameEuropean Microwave Week 2014: Connecting the Future, EuMW 2014 - Conference Proceedings; EuMC 2014: 44th European Microwave Conference

Conference

Conference2014 44th European Microwave Conference, EuMC 2014 - Held as Part of the 17th European Microwave Week, EuMW 2014
Country/TerritoryItaly
CityRome
Period6/10/149/10/14

Keywords

  • chirality
  • magnetostatic oscillations
  • microwave ferrites
  • near-field microwave microscopy

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