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

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

Abstract

Recently, biochip technologies have been received significant attention for molecule detection in the microwave regime. This is mainly due to a strong desire to find new method for the rapid and cost-efficient characterization of biomolecular specimens. In this paper we suggest to use a thin-film ferrite-disk resonator with magnetostatics (MS) oscillation spectra as an effective sensor for the near-field scanning microwave microscopy (NSMM). By a proper excitation of a ferrite-disk resonator one obtains a very rich high Q factor spectrum of MS oscillations. The proposed NSMMs should give extremely high resolution compared to the known NSMMs based on usual microwave resonators. MS modes in a ferrite disk are characterized by the rotating field behavior and special symmetry properties. We show that there are super-chiral microwave electromagnetic fields in the vicinity of a ferrite-disk particle. Based on the shown results, we can propose effective measuring chirality in chemical and biological objects on nanometer length scales.

Original languageEnglish
Title of host publicationEuropean Microwave Week 2011
Subtitle of host publication"Wave to the Future", EuMW 2011, Conference Proceedings - 41st European Microwave Conference, EuMC 2011
Pages385-388
Number of pages4
StatePublished - 1 Dec 2011
Event14th European Microwave Week 2011: "Wave to the Future", EuMW 2011 - 41st EuropeanMicrowave Conference, EuMC 2011 - Manchester, United Kingdom
Duration: 10 Oct 201113 Oct 2011

Publication series

NameEuropean Microwave Week 2011: "Wave to the Future", EuMW 2011, Conference Proceedings - 41st European Microwave Conference, EuMC 2011

Conference

Conference14th European Microwave Week 2011: "Wave to the Future", EuMW 2011 - 41st EuropeanMicrowave Conference, EuMC 2011
Country/TerritoryUnited Kingdom
CityManchester
Period10/10/1113/10/11

Keywords

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

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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