TY - GEN
T1 - Emission characteristics of copper ionic lines from the 3d 95s-3d94p transition in a low-pressure laser-induced plasma
AU - Zhang, Lei
AU - Shunsuke, Kashiwakura
AU - Wagatsuma, Kazuaki
PY - 2012
Y1 - 2012
N2 - The emission characteristic of copper ionic lines requiring large excitation energies was investigated in low-pressure laser-induced plasma spectroscopy (LP-LIPS), when argon was employed as plasma gas. The excited mechanism of the ironic lines whose electron transitions were assigned to the 3d95s-3d94p configuration was understood from the time-resolved spectra of copper. The emission intensity of the copper emission lines, measured in a time-resolved mode, was extremely dependent on the kind of copper lines and the upper energy. Generally, their emission intensities dramatically decreased with the duration time, along with the recombination as well as the de-excitation of copper ions requiring larger kinetics energy which mainly were produced in a hot breakdown plasma. The emission behavior excited from the 3d95s- 3d94p transition, such as the Cu II 254.4 nm and the Cu II 276.9 nm lines, was generally similar to that from 3d94p-3d94s transition, although their excitation energies were different. This effect would result from a common and dominant ionization /excitation mechanism, which was collision energy transfer from energetic particles such as fast electrons.
AB - The emission characteristic of copper ionic lines requiring large excitation energies was investigated in low-pressure laser-induced plasma spectroscopy (LP-LIPS), when argon was employed as plasma gas. The excited mechanism of the ironic lines whose electron transitions were assigned to the 3d95s-3d94p configuration was understood from the time-resolved spectra of copper. The emission intensity of the copper emission lines, measured in a time-resolved mode, was extremely dependent on the kind of copper lines and the upper energy. Generally, their emission intensities dramatically decreased with the duration time, along with the recombination as well as the de-excitation of copper ions requiring larger kinetics energy which mainly were produced in a hot breakdown plasma. The emission behavior excited from the 3d95s- 3d94p transition, such as the Cu II 254.4 nm and the Cu II 276.9 nm lines, was generally similar to that from 3d94p-3d94s transition, although their excitation energies were different. This effect would result from a common and dominant ionization /excitation mechanism, which was collision energy transfer from energetic particles such as fast electrons.
KW - Argon gas
KW - Copper ionic lines
KW - Excited mechanism
KW - Low-pressure laser induced plasma
UR - http://www.scopus.com/inward/record.url?scp=84859705511&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84859705511&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/KEM.508.331
DO - 10.4028/www.scientific.net/KEM.508.331
M3 - Conference contribution
AN - SCOPUS:84859705511
SN - 9783037853764
T3 - Key Engineering Materials
SP - 331
EP - 340
BT - Materials Integration
PB - Trans Tech Publications Ltd
T2 - Int. Symposium of GCOE: Materials Integration, in Conjunction with the 2nd Int. Symposium on Advanced Synthesis and Processing Technology for Materials, ASPT 2011 and the 8th Materials Science School for Young Scientists, KINKEN-WAKATE 2011
Y2 - 1 December 2011 through 2 December 2011
ER -