Sample interview questions: Can you discuss your familiarity with the physics of plasma-surface interactions?
Sample answer:
Familiarity with Plasma-Surface Interactions
Plasma Characterization and Diagnostics
- Extensive experience in characterizing plasma species (ions, electrons, neutrals) using mass spectrometry, spectroscopic techniques (OES, MS), and particle energy analyzers (LEED, XPS)
- Expertise in probing plasma parameters such as temperature, density, and flow velocity using Langmuir probes, microwave interferometry, and optical emission spectroscopy
Surface Analysis and Modification
- Deep understanding of surface processes induced by plasma exposure, including etching, deposition, sputtering, and oxidation
- Proficient in analyzing surface composition, topography, and roughness using techniques such as scanning electron microscopy (SEM), atomic force microscopy (AFM), and X-ray photoelectron spectroscopy (XPS)
Plasma-Material Interactions
- Comprehensive knowledge of the fundamental mechanisms governing the interac… Read full answer