Abstract

Atomic fluorescence observations of Li and Cu in a laser microprobe plume were made to study the chemical and physical influences of a reactive atmosphere of oxygen relative to an atmosphere of argon. Time and spatially resolved fluorescence observations show a region of relatively low concentration of Li in the center of the plume from a film emulsion sample, which is not present for Cu from an aluminum alloy sample. For both samples, the plume appears to rise as a ball above the sample, rather than fan out continuously throughout the atmosphere.

Optical emission spectrometry and laser-induced fluorescence of laser produced sample plumes

Kay Niemax and Wolfgang Sdorra
Appl. Opt. 29(33) 5000-5006 (1990)

Laser-induced fluorescence diagnostic for temperature and velocity measurements in a hydrogen arcjet plume

John G. Liebeskind, Ronald K. Hanson, and Mark A. Cappelli
Appl. Opt. 32(30) 6117-6127 (1993)

Flow characterization of a diamond-depositing dc arcjet by laser-induced fluorescence

Wolfgang Juchmann, Jorge Luque, and Jay B. Jeffries
Appl. Opt. 39(21) 3704-3711 (2000)

Standoff chemical plume detection in turbulent atmospheric conditions with a swept-wavelength external cavity quantum cascade laser

Mark C. Phillips, Bruce E. Bernacki, Sivanandan S. Harilal, Jeremy Yeak, and R. Jason Jones
Opt. Express 28(5) 7408-7424 (2020)

Two-photon laser-induced fluorescence of atomic hydrogen in a diamond-depositing dc arcjet

Wolfgang Juchmann, Jorge Luque, and Jay B. Jeffries
Appl. Opt. 44(31) 6644-6652 (2005)