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Frequency doubling of multi-terawatt picosecond pulses

Published online by Cambridge University Press:  01 April 1999

D. NEELY ,
C.N. DANSON ,
R. ALLOTT ,
F. AMIRANOFF ,
J.L. COLLIER ,
A.E. DANGOR ,
C.B. EDWARDS ,
P. FLINTOFF ,
P. HATTON  and
M. HARMAN
...Show all authors
D. NEELY
Affiliation:
CLRC Rutherford Appleton Laboratory, Chilton, Didcot, Oxon, OX11 0QX, UK
C.N. DANSON
Affiliation:
CLRC Rutherford Appleton Laboratory, Chilton, Didcot, Oxon, OX11 0QX, UK
R. ALLOTT
Affiliation:
CLRC Rutherford Appleton Laboratory, Chilton, Didcot, Oxon, OX11 0QX, UK
F. AMIRANOFF
Affiliation:
LULI, Ecole Polytechnique, Palaiseau, France
J.L. COLLIER
Affiliation:
CLRC Rutherford Appleton Laboratory, Chilton, Didcot, Oxon, OX11 0QX, UK
A.E. DANGOR
Affiliation:
Imperial College, Prince Consort Road, London, UK
C.B. EDWARDS
Affiliation:
CLRC Rutherford Appleton Laboratory, Chilton, Didcot, Oxon, OX11 0QX, UK
P. FLINTOFF
Affiliation:
CLRC Rutherford Appleton Laboratory, Chilton, Didcot, Oxon, OX11 0QX, UK
P. HATTON
Affiliation:
CLRC Rutherford Appleton Laboratory, Chilton, Didcot, Oxon, OX11 0QX, UK
M. HARMAN
Affiliation:
CLRC Rutherford Appleton Laboratory, Chilton, Didcot, Oxon, OX11 0QX, UK
M.H.R. HUTCHINSON
Affiliation:
CLRC Rutherford Appleton Laboratory, Chilton, Didcot, Oxon, OX11 0QX, UK
Z. NAJMUDIN
Affiliation:
Imperial College, Prince Consort Road, London, UK
D.A. PEPLER
Affiliation:
CLRC Rutherford Appleton Laboratory, Chilton, Didcot, Oxon, OX11 0QX, UK
I.N. ROSS
Affiliation:
CLRC Rutherford Appleton Laboratory, Chilton, Didcot, Oxon, OX11 0QX, UK
M. SALVATI
Affiliation:
Imperial College, Prince Consort Road, London, UK
T. WINSTONE
Affiliation:
CLRC Rutherford Appleton Laboratory, Chilton, Didcot, Oxon, OX11 0QX, UK
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Abstract

The frequency-doubling efficiency and resultant focal spot quality of a large aperture (140 × 89 mm) subpicosecond, chirped pulse amplified (CPA) 1054-nm beam for laser–matter interaction studies has been investigated using the Vulcan Nd:glass laser system (Danson et al. 1998). The effect of B-integral on the CPA beam quality was studied and is shown not to be the dominant cause of the observed frequency-doubled beam break-up. Conversion efficiency tests were carried out on small aperture KDP (type 1) crystals at a range of incident intensities up to 3 × 1011 W/cm2 giving the optimum crystal thickness for pulses in the 0.3–3 ps region. A large-aperture frequency-doubled beam was commissioned and delivered pulses of over 10 TW onto target for an electron acceleration experiment.

Type
Research Article
Information
Laser and Particle Beams , Volume 17 , Issue 2 , April 1999 , pp. 281 - 286
Copyright
© 1999 Cambridge University Press

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