Diagnosis of the on-target focal spot using the current OMEGA EP diagnostics is challenging due to differential piston uncertainty and calibration errors. Performance was improved by retrieving phase information from far-field images using numerical optimization.
© 2010 The Optical Society
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(120.5050) Instrumentation, measurement, and metrology : Phase measurement
(140.0140) Lasers and laser optics : Lasers and laser optics
(140.3295) Lasers and laser optics : Laser beam characterization
B. E. Kruschwitz, S. -. Bahk, J. Bromage, D. Irwin, M. D. Moore, L. J. Waxer, J. D. Zuegel, and J. H. Kelly, "Improved on-Shot Focal Spot Diagnosis on the OMEGA EP Short-Pulse Laser System," in Conference on Lasers and Electro-Optics 2010, OSA Technical Digest (CD) (Optical Society of America, 2010), paper JThE113.
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