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Conference Paper
CLEO: Science and Innovations
Baltimore, Maryland United States
May 1-6, 2011
ISBN: 978-1-55752-910-7
Petawatt Laser Technology (CTuJ)

Origin of the Coherent Contrast Pedestal in Petawatt Laser Pulses

Chris Hooker, Yunxin Tang, Oleg Chekhlov, John L. Collier, Edwin Divall, Klaus Ertel, Steve Hawkes, and Rajeev Pattathil  »View Author Affiliations


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We demonstrate experimentally that the “coherent” contrast pedestal in compressed pulses from CPA lasers originates from the diffraction gratings in the pulse stretcher. The pedestal intensity correlates with the level of scatter from the gratings.

© 2011 OSA

OCIS Codes
(140.7090) Lasers and laser optics : Ultrafast lasers
(230.1950) Optical devices : Diffraction gratings

C. Hooker, Y. Tang, O. Chekhlov, J. L. Collier, E. Divall, K. Ertel, S. Hawkes, and R. Pattathil, "Origin of the Coherent Contrast Pedestal in Petawatt Laser Pulses," in CLEO:2011 - Laser Applications to Photonic Applications, OSA Technical Digest (CD) (Optical Society of America, 2011), paper CTuJ6.

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