This paper deals with the study of erosion and surface phenomena of liquid Ga exposed to a capacitively coupled rf-plasma. We have observed a very high erosion yield in Ar plasmas which cannot be explained by sputtering alone. Time resolved observations of the plasma-gallium interaction indicate that the formation of gas cavities inside the Ga and their explosive outgassing might be one of the important erosion mechanisms in our experiments.
Articles you may be interested inHigh-resolution imaging spectrometer for recording absolutely calibrated far ultraviolet spectra from laser-produced plasmas Rev.A study of electron energy distributions in an inductively coupled plasma by laser Thomson scattering Abstract. We propose a new method for the investigation of plasma crystals. It is equivalent to the X-ray scattering methods of solid state physics but using far infrared (FIR) laser beams with wavelengths comparable to the Debye length of the system. This method could provide information about structure and dynamics of large 3D plasma crystals. Such crystals with up to 1 million particles have been realised in CCP discharges using micron sized Melamin-Formaledhyd (MP) particles. We present the setup of the FIR laser system, scattering arrangement, and plasma chamber Results are discussed including video analysis of plasma crystals and FIR scattering on test samples.
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