Ultrahigh-brightness XeC1 laser system Page: 3 of 11
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Ultrahigh-brightness XeCl laser system
R. B. Gibson, T. R. Gosnell, C. S. Lester, J. P. Roberts,
C. R. Tallman, and A. J. Taylor
Los Alamos National Laboratory
M9 E543, Los Alamos, New Mexico 87545
ABSTRACT
A laser system that produces terawatt-level pulses of 308-nm light with near-
diffraction-limited beam quality is under development. Pulses of 175-fs duration
are generated at 616 nm in a synchronously-pumped mode-locked dye oscillator.
These pulses are amplified in a three-stage dye amplifier longitudinally pumped
by the frequency-doubled output of a regenerative Nd:YAG amplifier. Output of
the dye amplifier is frequency-doubled in a BBO crystal and amplified in a chain
of XeCI excimer stages. The optical design maintains high beam quality
throughout.
INTRODUCTION
The interaction of matter with intense electromagnetic fields is an area of rapidly
growing research interest. Ultrashort laser pulsets focused to near the diffract iou1
limit provide an attractive means of producing irradiances > 1016 W cn-2 for such
slhdies. Ultrahigh brightness systems have been demonstrated using (:O),1
Nd-YAG, Nd:Glas,2 Cr:BeAl204,:3 various dyes,4,5 or excimers6 1: as the final
;aI.Jihfying media. Focal spo. intensities of 1016 10M W cm 2 have been reported in
svvral Iaiboratories.4M, 11,12 Increasing the focal intensity towards 1020 W cmii 2
gI'nerally re(uir(s more energy, shorter pulses, and better hean quality than aire
charteri stic of existfi ng systnis. This paper reports a XeCI -aIsed 111ser systvim
1h t demonstrates significant improveimenIs over existing tiltrahigh brightness
laser systemvw.
lThe1 system emplos convv11iodli archit evure I i Ilses of noninally 175 Is nre
generated ut fal 1 nrn in it synchror.ous;9Y mode locked linear cavity dye oscillator
Tis pulsewi h is close to the iandwidth livimit of X4,( '111 so further pulse
shorteiniig is unnecess.ar' if temporal broa dealing. is mniniinal through the optli
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Gibson, R. B.; Gosnell, T. R.; Lester, C. S.; Robers, J. P.; Tallman, C. R. & Taylor, A. J. Ultrahigh-brightness XeC1 laser system, article, January 1, 1989; New Mexico. (https://digital.library.unt.edu/ark:/67531/metadc1212396/m1/3/: accessed July 16, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.