Accession Number:

ADA193004

Title:

Ultraviolet-Visible Spectroscopy of Laser-Produced Aluminum Plasmas

Descriptive Note:

Final rept.

Corporate Author:

AEROSPACE CORP EL SEGUNDO CA AEROPHYSICS LAB

Personal Author(s):

• Knudtson, J. T.
• Green, William B.
• Sutton, David G.

Report Date:

1988-01-22

Pagination or Media Count:

47.0

Abstract:

The optical emission spectra 180 to 760 nm of plasmas produced by a flashlamp-pumped dye laser focused on an aluminum target have been recorded and analyzed. In the incident intensity range from near plasma threshold to 5 x 107 Wcm2, the electron temperature was calculated from the relative emission intensity of A1II states Te 8.0 x 103 K. The electron density was determined from Stark broadened linewidths of four AlII lines. Both the spatial and temporal dependence of the emission spectra were obtained, providing a map of the electron density and temperature. Keywords Laser effects, Plasma spectroscopy, Laser produced plasma.

Descriptors:

• *PLASMAS(PHYSICS)
• *LASERS
• *ALUMINUM
• EMISSION
• THRESHOLD EFFECTS
• INTENSITY
• LASER BEAMS
• VISIBLE SPECTRA
• RADIATION EFFECTS
• FLASH LAMPS
• DYE LASERS
• PUMPING(ELECTRONICS)
• ELECTRON ENERGY
• TARGETS
• EMISSION SPECTRA
• ELECTRON DENSITY
• SPECTROSCOPY

Subject Categories:

• Physical Chemistry
• Lasers and Masers

Distribution Statement:

APPROVED FOR PUBLIC RELEASE