Study of transverse and longitudinal bifurcation for pattern formations of a plasma column
Abstract
In experimental investigations array, helical and spiral patterns of a plasma column are formed by changing the operating parameters e.g., input power, working pressure, drive frequency, diameter of the glass tube, background gases, etc. Further, theoretical formulations are attempted using a hydrodynamic model to explain the bifurcation of a plasma column in the transverse and longitudinal axis considering two-step ionization in surface wave produced plasma. Findings of this study reveal that metastable atoms provide two-step ionization which in turn excites weak instability, which bifurcate plasma column in such a way that different patterns are formed.
- Publication:
-
Physics Letters A
- Pub Date:
- June 2012
- DOI:
- 10.1016/j.physleta.2012.05.005
- Bibcode:
- 2012PhLA..376.2126K