Plasma generation by dielectric resonator arrays

Stephen Dennison, Adam Chapman, Wei Luo, Michael Lanagan, Jeffrey Hopwood

Research output: Contribution to journalArticle

16 Scopus citations

Abstract

Arrays of dielectric resonators - illuminated by an antenna - are used to ignite and sustain multiple microwave plasmas in parallel. Calcium titanate cylindrical resonators were arranged in a linear array with separation distances between 0.5 and 5 mm. The operating frequency was near the HEM111 resonance of 1.1 GHz. Paschen curves of the breakdown field and voltage in argon atmosphere are consistent with parallel plate microwave breakdown except within discharge gaps of 1 mm or less. Sustaining of argon plasma between 0.5 Torr and 1 atm within the array is found to alter the electromagnetic scattering from the dielectric resonators, suggesting applications in plasma-reconfigurable metamaterials and photonic crystals.

Original languageEnglish (US)
Article number03LT02
JournalPlasma Sources Science and Technology
Volume25
Issue number3
DOIs
StatePublished - May 12 2016

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

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