LLE Review, Quarterly Report: Volume 98, January-March 2004 Page: 2 of 100
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About the Cover:
The ultraviolet diagnostic table (UVDT) situated on top of the south end-mirror structure in the OMEGA Target Bay is shown in
the foreground of the photograph. A full-aperture optical wedge in one of the 60 beams directs 4% of the laser light to the UVDT.
Scientists Sean Regan (left foreground) and John Marozas (right foreground) use the ultraviolet equivalent-target-plane (UVETP)
diagnostic stationed on the UVDT to investigate the performance of laser-beam smoothing on OMEGA with 1-THz-bandwidth,
2-D smoothing by spectral dispersion (2-D SSD) and polarization smoothing (PS) (see article featured on p. 49). Optomechanical
technician Rich Dean (far right) is seen positioning a distributed phase plate (DPP) in front of an OMEGA lens on the UVDT. The
UVETP diagnostic captures a magnified image of the OMEGA far field on a CCD camera, which is located inside the black
enclosure on the left side of the photograph. The Optical Manufacturing (OMAN) Group can be seen in the background installing
phase plates on the OMEGA target chamber.- f
This report was prepared as an account of work conducted by
the Laboratory for Laser Energetics and sponsored by New
York State Energy Research and Development Authority, the
University of Rochester, the U.S. Department of Energy, and
other agencies. Neither the above named sponsors, nor any of
their employees, makes any warranty, expressed or implied, or
assumes any legal liability or responsibility for the accuracy,
completeness, or usefulness of any information, apparatus,
product, or process disclosed, or represents that its use would
not infringe privately owned rights. Reference herein to any
specific commercial product, process, or serviceby trade name,
mark, manufacturer, or otherwise, does not necessarily consti-
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Microfiche A01In the OMEGA viewing gallery, scientists Sean Regan
(left) and John Marozas (right) discuss the on-target laser
irradiation nonuniformity levels. Direct-drive inertial con-
finement fusion strives to achieve uniform target irradia-
tion using two-dimensional smoothing by spectral
dispersion (2-D SSD), distributed phase plates (DPP's),
polarization smoothing (PS) utilizing birefringent wedges,
and multiple-beam overlap. The article featured on p. 49
shows that the theoretical predictions of laser beam smooth-
ing with 1-THz-bandwidth, 2-D SSD and PS are in excel-
lent agreement with the measured performance.
the United States Government or any agency thereof or any
other sponsor. Results reported in the LLE Review should not
be taken as necessarily final results as they represent active
research. The views and opinions of authors expressed herein
do not necessarily state or reflect those of any of the above
sponsoring entities.
The work described in this volume includes current research
at the Laboratory for Laser Energetics, which is supported by
New York State Energy Research and Development Authority,
the University of Rochester, the U.S. Department of Energy
Office of Inertial Confinement Fusion under Cooperative Agree-
ment No. DE-FC03-92SF19460, and other agencies.
For questions or comments, contact Valeri N. Goncharov,
Editor, Laboratory for Laser Energetics, 250 East River Road,
Rochester, NY 14623-1299, (585) 275-5877.Worldwide-Web Home Page: http://www.lle.rochester.edu/
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Goncharov, Valeri N. LLE Review, Quarterly Report: Volume 98, January-March 2004, report, August 10, 2004; United States. (https://digital.library.unt.edu/ark:/67531/metadc785625/m1/2/: accessed May 7, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.