Characterisation of a microwave induced plasma torch for glass surface modification

Adam Bennett, Nan Yu*, Marco Castelli, Guoda Chen, Alessio Balleri, Takuya Urayama, Fengzhou Fang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Microwave induced plasma torches find wide applications in material and chemical analysis. Investigation of a coaxial electrode microwave induced plasma (CE-MIP) torch is conducted in this study, making it available for glass surface modification and polishing. A dedicated nozzle is designed to inject secondary gases into the main plasma jet. This study details the adaptation of a characterisation process for CE-MIP technology. Microwave spectrum analysis is used to create a polar plot of the microwave energy being emitted from the coaxial electrode, where the microwave energy couples with the gas to generate the plasma jet. Optical emission spectroscopy analysis is also employed to create spatial maps of the photonic intensity distribution within the plasma jet when different additional gases are injected into it. The CE-MIP torch is experimentally tested for surface energy modification on glass where it creates a super-hydrophilic surface.

Original languageEnglish
Pages (from-to)122–132
JournalFrontiers of Mechanical Engineering
Early online date6 Dec 2020
Publication statusPublished - Mar 2021


  • microwave induced plasma
  • spectrum analysis
  • surface modification


Dive into the research topics of 'Characterisation of a microwave induced plasma torch for glass surface modification'. Together they form a unique fingerprint.

Cite this