THz time-domain spectroscopy for tokamak plasma diagnostics

F. Causa, M. Zerbini, M. Johnston, P. Buratti, A. Doria, L. Gabellieri, G.P. Gallerano, E. Giovenale, D. Pacella, A. Romano, A.A. Tuccillo, O. Tudisco

Research output: Contribution to conferencePaper

1 Citation (Scopus)

Abstract

The technology is now becoming mature for diagnostics using large portions of the electromagnetic spectrum simultaneously, in the form of THz pulses. THz radiation-based techniques have become feasible for a variety of applications, e.g., spectroscopy, imaging for security, medicine and pharmaceutical industry. In particular, time-domain spectroscopy (TDS) is now being used also for plasma diagnostics in various fields of application. This technique is promising also for plasmas for fusion applications, where plasma characteristics are non-uniform and/or evolve during the discharge This is because THz pulses produced with femtosecond mode-locked lasers conveniently span the spectrum above and below the plasma frequency and, thus, can be used as very sensitive and versatile probes of widely varying plasma parameters. The short pulse duration permits time resolving plasma characteristics while the large frequency span permits a large dynamic range. The focus of this work is to present preliminary experimental and simulation results demonstrating that THz TDS can be realistically adapted as a versatile tokamak plasma diagnostic technique. © 2014 American Institute of Physics.
Original languageEnglish
DOIs
Publication statusPublished - 2014
Externally publishedYes
EventInternational Conference on Fusion Reactor Diagnostics - , Italy
Duration: 1 Jan 2014 → …

Conference

ConferenceInternational Conference on Fusion Reactor Diagnostics
CountryItaly
Period1/1/14 → …

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Causa, F., Zerbini, M., Johnston, M., Buratti, P., Doria, A., Gabellieri, L., ... Tudisco, O. (2014). THz time-domain spectroscopy for tokamak plasma diagnostics. Paper presented at International Conference on Fusion Reactor Diagnostics, Italy. https://doi.org/10.1063/1.4894037