Experimental and numerical study of electromagnetic wave trapping in a time-varying periodic plasma

James Faith, Joe Huang, Spencer Kuo

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A way to achieve more efficient interaction in electromagnetic wave trapping is to use a periodic plasma several free space wavelengths long to trap the incident electromagnetic wave. Considering such a structure, as the plasma density grows from zero, the incident wave initially sees a small plasma-free space discontinuity. This provides for a large transmission (and small reflection) coefficient into (from) the structure. In the time it takes the wave propagates to the far end of the structure the plasma continues to grow. Therefore, at the boundary between the final plasma layer and free space, the plasma density has increased and the reflection coefficient at this boundary is greater than the one encountered at the beginning of the structure. Thus some of the wave energy is trapped within the structure, where it can effectively interact with the plasma, and alter its spectral content. The trapping process is expected to be more effective for the down-shifted Floquet modes. An experiment exhibiting these phenomena confirms that the amplitude of frequency altered pulses is vastly enhanced over the case of a single plasma slab. Experimental results, along with related numerical simulations, showing the large down-shifted lines are presented.

Original languageEnglish (US)
Title of host publicationIEEE International Conference on Plasma Science
PublisherIEEE
Pages186
Number of pages1
StatePublished - 1996
EventProceedings of the 1996 IEEE International Conference on Plasma Science - Boston, MA, USA
Duration: Jun 3 1996Jun 5 1996

Other

OtherProceedings of the 1996 IEEE International Conference on Plasma Science
CityBoston, MA, USA
Period6/3/966/5/96

Fingerprint

electromagnetic radiation
trapping
plasma density
plasma slabs
reflectance
plasma layers
discontinuity
traps
pulses
wavelengths
simulation
interactions
energy

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Faith, J., Huang, J., & Kuo, S. (1996). Experimental and numerical study of electromagnetic wave trapping in a time-varying periodic plasma. In IEEE International Conference on Plasma Science (pp. 186). IEEE.

Experimental and numerical study of electromagnetic wave trapping in a time-varying periodic plasma. / Faith, James; Huang, Joe; Kuo, Spencer.

IEEE International Conference on Plasma Science. IEEE, 1996. p. 186.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Faith, J, Huang, J & Kuo, S 1996, Experimental and numerical study of electromagnetic wave trapping in a time-varying periodic plasma. in IEEE International Conference on Plasma Science. IEEE, pp. 186, Proceedings of the 1996 IEEE International Conference on Plasma Science, Boston, MA, USA, 6/3/96.
Faith J, Huang J, Kuo S. Experimental and numerical study of electromagnetic wave trapping in a time-varying periodic plasma. In IEEE International Conference on Plasma Science. IEEE. 1996. p. 186
Faith, James ; Huang, Joe ; Kuo, Spencer. / Experimental and numerical study of electromagnetic wave trapping in a time-varying periodic plasma. IEEE International Conference on Plasma Science. IEEE, 1996. pp. 186
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