The effect of hydrogen additive on population densities in the afterglow of barium vapour lasers

Richard P. Mildren; Daniel J. W. Brown; Robert J. Carman; James A. Piper

doi:10.1016/0030-4018(95)00264-9

The effect of hydrogen additive on population densities in the afterglow of barium vapour lasers

Richard P. Mildren^*, Daniel J. W. Brown, Robert J. Carman, James A. Piper

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

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.

Original language	English
Pages (from-to)	112-120
Number of pages	9
Journal	Optics Communications
Volume	120
Issue number	1-2
DOIs	https://doi.org/10.1016/0030-4018(95)00264-9
Publication status	Published - 1 Oct 1995

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title = "The effect of hydrogen additive on population densities in the afterglow of barium vapour lasers",

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.",

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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.

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JF - Optics Communications

SN - 0030-4018

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The effect of hydrogen additive on population densities in the afterglow of barium vapour lasers

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