Enhanced heating in plasma bulk due to electron cyclotron resonance in weakly magnetized capacitively coupled plasmas
Abstrak
An enhanced electron heating mechanism based on a resonance between the cyclotron motion of electrons and radio frequency (rf) electric field in the plasma bulk is reported in weakly magnetized capacitively coupled argon plasmas at low pressure. When the electron cyclotron frequency coincides with the applied power source frequency, the bulk electrons can continuously acquire energy from the background electric field within certain rf periods during the cyclotron motion, inducing overall distinct increase of excitation rate and electron temperature in the plasma bulk. This enhanced electron heating effect has been examined by a combination of kinetic particle simulations, experimental measurements, and an analytical model, and the dynamics of electrons are revealed at resonant conditions.
Topik & Kata Kunci
Penulis (6)
Quanzhi Zhang
Jia‐Rui Liu
Yong-Xin Liu
Wen-qi Lu
Jing-Yu Sun
You-nian Wang
Akses Cepat
- Tahun Terbit
- 2022
- Bahasa
- en
- Total Sitasi
- 6×
- Sumber Database
- Semantic Scholar
- DOI
- 10.1088/1361-6595/ac7903
- Akses
- Open Access ✓