Non Linear structure (evolution and effects) of oscillating plasma bubbles in various experimental conditions

Non Linear structure (evolution and effects) of oscillating plasma bubbles in various experimental conditions

The ISRO-RESPOND, Govt. of India Project amounting to 25 Lakhs from 2014-2017 is a Venture initiated by Dr. Bornali Sarma, Associate Professor – School of Advanced Sciences. The Project researches on the Evolution of oscillating plasma bubbles and its nonlinear effects in various experimental conditions and establishing the results to compare with the space plasma bubbles that exist in ionosphere. Varieties of nonlinear phenomena such as regular-irregular oscillations, relaxation oscillations, chaos, mixed mode oscillations etc in both glow discharge and filamentary discharge plasma have been investigated. Several nonlinear techniques have been adopted to explore the hidden nonlinear behavior of the plasma fluctuations. Types of instabilities viz., sheath induced instability, drift wave instability, RT instability etc. have been observed which are influenced by oscillating plasma bubbles in glow discharge and filamentary discharge plasma, which can be correlated with space instabilities in ionospheric layers.

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