Finite element analysis of ring-shaped emission profile in plasma bullet

Yukinori Sakiyama, David B. Graves, Julien Jarrige, Mounir Laroussi

Research output: Contribution to journalArticlepeer-review

134 Scopus citations


Using a one-way coupled model of neutral gas flow and plasma dynamics we report a mechanism to explain the ring-shaped emission pattern that has been observed experimentally in plasma bullets at atmospheric pressure. We solve a fluid model with the local field approximation in one-dimensional cylindrical coordinates, corresponding to a cross-section of a plasma bullet. Pulselike uniform electric field is assumed to be applied perpendicular to the simulation domain. Time and spatially resolved spectroscopic measurements support the simulation results.

Original languageEnglish (US)
Article number041501
JournalApplied Physics Letters
Issue number4
StatePublished - 2010
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)


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