Nonlinear Vertical Oscillations of a Particle in a Sheath of a rf Discharge
- 6 November 2000
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 85 (19), 4060-4063
- https://doi.org/10.1103/physrevlett.85.4060
Abstract
A new simple method to measure the spatial distribution of the electric field in the plasma sheath is proposed. The method is based on the experimental investigation of vertical oscillations of a single particle in the sheath of a low-pressure radio-frequency discharge. It is shown that the oscillations become strongly nonlinear as the amplitude increases. The theory of anharmonic oscillations provides a good quantitative description of the data and gives estimates for the first two anharmonic terms in an expansion of the sheath potential around the particle equilibrium.Keywords
This publication has 10 references indexed in Scilit:
- Parabolic Plasma Sheath Potentials and their Implications for the Charge on Levitated Dust ParticlesPhysical Review Letters, 2000
- Measurement of the Interaction Potential of Microspheres in the Sheath of a rf DischargePhysical Review Letters, 2000
- Dust–dust and dust-plasma interactions of monolayer plasma crystalsPhysics of Plasmas, 1999
- Space and time resolved electric field measurements in helium and hydrogen RF-dischargesPlasma Sources Science and Technology, 1999
- Sheath dynamics observed in a 13.56 MHz-driven plasmaApplied Physics Letters, 1997
- Experimental determination of the charge on dust particles forming Coulomb latticesPhysics Letters A, 1994
- The Gaseous Electronics Conference radio-frequency reference cell: A defined parallel-plate radio-frequency system for experimental and theoretical studies of plasma-processing dischargesReview of Scientific Instruments, 1994
- Electron-beam probe measurements of electric fields in rf dischargesJournal of Applied Physics, 1990
- MechanicsPhysics Today, 1962
- On the Resistance Experienced by Spheres in their Motion through GasesPhysical Review B, 1924