Optical Characterization of Lithium Plasma Produced by Laser Irradiation
Abstract
Solid lithium deposited on stainless steel (SS) was irradiated by a Carbon dioxide laser at 10.6 micrometers and by a dye laser tuned to 666.4 nm and to the first resonance line of lithium, 670.8 nm. Type 316 SS surfaces were irradiated by a dye laser at 670.8 nm. Power densities ranged from <0.1-9.4 MW/ sq cm. Optical information from the lithium plasma produced was evaluated using Stark broadening analysis to determine the plasma density, which varied from approx. 2 x 10 to the sixteenth power/cc to over 10 to the seventeenth/cc. Lithium and SS surfaces were observed by an SEM before and after irradiation, and evidence of unipolar arcing was found on both surface types.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1986
- Accession Number
- ADA176773
Entities
People
- Bruce A. Hoselton
Organizations
- Naval Postgraduate School