Temporal evolution of the laser-induced breakdown spectroscopy spectrum of aluminum metal in different bath gases.
The spectral emission of gas-phase aluminum and aluminum oxide was measured during and immediately after exposure of a bulk-aluminum sample to a laser-induced spark produced by a focused, pulsed laser beam (Nd:YAG, 10-ns pulse duration, 35 mJ/pulse, lambda = 1064 nm). The spectral emission was measured as a function of time after the onset of the laser pulse, and it was also measured in different bath gases (air, nitrogen, oxygen, and helium).
U.S. Army Research Laboratory, Aberdeen Proving Ground, Maryland 21005-5066, USA. thnguyen@arl.army.mil
Thuvan N
TN
Piehler
Frank C
FC
DeLucia
Chase A
CA
Munson
Barrie E
BE
Homan
Andrzej W
AW
Miziolek
Kevin L
KL
McNesby