9 papers
Revisiting Electron Heating in Capacitively Coupled Plasma (CCP) Discharges: A Nonlinear Dynamics Perspective
Rishabh Singh, Sarveshwar Sharma, Bhooshan Paradkar +1
Despite decades of research, the electron heating mechanisms in capacitively coupled plasma (CCP) discharges over a wide range of operating conditions is not fully understood. Alth…
Quasi-static transverse electric field driven electron acceleration in relativistic laser matter interaction
Ameya Parab, Bhooshan Paradkar, Aparajit C. +4
Achieving significant energy gain in laser-driven relativistic electron beams remains challenging due to dephasing between the accelerating laser field and the electrons. We show t…
Collisionless Bulk Electron Heating in Resonant Low-Voltage Capacitively Coupled Plasmas
Sarveshwar Sharma, Igor D. Kaganovich, Animesh Kuley +3
We investigate collisionless power absorption in resonant, lowpressure capacitively coupled plasmas (CCPs). In these radio-frequency (RF) discharges, the sheath capacitance almo…
Particle Dynamics in Constant Synthetic Non-Abelian Fields
Subramanya Bhat K. N., Amita Das, V Ravishankar +1
Yang-Mills theory has extended well beyond its original role in describing the strong force and now emerges as an effective theory in condensed matter, ultracold atomic, and photon…
Multigrid Poisson Solver for Complex Geometries Using Finite Difference Method
Deepak Gautam, Bhooshan Paradkar
We present an efficient numerical method, inspired by transformation optics, for solving the Poisson equation in complex and arbitrarily shaped geometries. The approach operates by…
Resonantly Driven Electron Bernstein Waves in Magnetized Low-Pressure Capacitive Discharges
Deepak Gautam, Sarveshwar Sharma, Igor Kaganovich +1
The physics of capacitively coupled plasma (CCP) discharges is investigated in a mildly magnetized regime, defined by , where and denote…
Simulation Studies of Resonant Excitation of Electron Bernstein Waves in Capacitive Discharges
Deepak Gautam, Sarveshwar Sharma, Igor Kaganovich +1
The behavior of capacitive coupled plasma (CCP) discharges is investigated in a mildly magnetized regime, defined by the condition 1 2, where …
Experimental Signatures for Identifying Distinct Origins of Color Field Generation
Subramanya Bhat K. N., Amita Das, Bhooshan Paradkar +1
Signatures for non-abelian dynamics have long been central to QCD and QGP. Equally important are they in spin systems and laser-plasma interactions, where they emerge as effective…
Novel Instabilities in Counter-Streaming Nonabelian Fluids
Subramanya Bhat K N, Amita Das, V Ravishankar +1
The dynamics of strongly interacting particles are governed by Yang-Mills (Y-M) theory, which is a natural generalization of Maxwell Electrodynamics (ED). Its quantized version is…