Abstract
The effects of hydrogen additive on the performance and detailed kinetics of a pulsed barium vapour laser operating with burst-mode excitation are reported. Time resolved density measurements of significant atomic and ionic barium states in pure neon buffer gas and in a NeH2 mixture show that the plasma relaxes between excitation pulses much more rapidly when hydrogen is present. The observed improvement in laser performance (65% increase in output pulse energy) under steady state (i.e. end of burst) conditions with hydrogen additive is directly attributable to improved pre-pulse conditions, resulting from cumulative effects of the enhanced plasma relaxation. The results and conclusions are relevant to other cyclic pulsed metal vapour lasers.
| Language | English |
|---|---|
| Pages | 112-120 |
| Number of pages | 9 |
| Journal | Optics Communications |
| Volume | 120 |
| Issue number | 1-2 |
| DOIs | |
| Publication status | Published - 1 Oct 1995 |
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The effect of hydrogen additive on population densities in the afterglow of barium vapour lasers. / Mildren, Richard P.; Brown, Daniel J. W.; Carman, Robert J.; Piper, James A.
In: Optics Communications, Vol. 120, No. 1-2, 01.10.1995, p. 112-120.Research output: Contribution to journal › Article › Research › peer-review
TY - JOUR
T1 - The effect of hydrogen additive on population densities in the afterglow of barium vapour lasers
AU - Mildren, Richard P.
AU - Brown, Daniel J. W.
AU - Carman, Robert J.
AU - Piper, James A.
PY - 1995/10/1
Y1 - 1995/10/1
N2 - The effects of hydrogen additive on the performance and detailed kinetics of a pulsed barium vapour laser operating with burst-mode excitation are reported. Time resolved density measurements of significant atomic and ionic barium states in pure neon buffer gas and in a NeH2 mixture show that the plasma relaxes between excitation pulses much more rapidly when hydrogen is present. The observed improvement in laser performance (65% increase in output pulse energy) under steady state (i.e. end of burst) conditions with hydrogen additive is directly attributable to improved pre-pulse conditions, resulting from cumulative effects of the enhanced plasma relaxation. The results and conclusions are relevant to other cyclic pulsed metal vapour lasers.
AB - The effects of hydrogen additive on the performance and detailed kinetics of a pulsed barium vapour laser operating with burst-mode excitation are reported. Time resolved density measurements of significant atomic and ionic barium states in pure neon buffer gas and in a NeH2 mixture show that the plasma relaxes between excitation pulses much more rapidly when hydrogen is present. The observed improvement in laser performance (65% increase in output pulse energy) under steady state (i.e. end of burst) conditions with hydrogen additive is directly attributable to improved pre-pulse conditions, resulting from cumulative effects of the enhanced plasma relaxation. The results and conclusions are relevant to other cyclic pulsed metal vapour lasers.
UR - http://www.scopus.com/inward/record.url?scp=0029392058&partnerID=8YFLogxK
U2 - 10.1016/0030-4018(95)00264-9
DO - 10.1016/0030-4018(95)00264-9
M3 - Article
VL - 120
SP - 112
EP - 120
JO - Optics Communications
T2 - Optics Communications
JF - Optics Communications
SN - 0030-4018
IS - 1-2
ER -