Chaotic-to-ordered state transition of cathode-sheath instabilities in DC glow discharge plasmas

摘要

Transition from chaotic to ordered state has been observed during the initial stage of a discharge in a cylindrical DC glow discharge plasma. Initially it shows a chaotic behavior but increasing the discharge voltage changes the characteristics of the discharge glow and shows a period subtraction of order 7 period a?’ 5 period a?’ 3 period a?’ 1 period, i.e. the system goes to single mode through odd cycle subtraction. On further increasing the discharge voltage, the system goes through period doubling, like 1 period a?’ 2 period a?’ 4 period. On further increasing the voltage, the system goes to stable state through two period subtraction, like 4 period a?’ 2 period a?’ stable.