Large temporal window contrast measurement using optical parametric amplification and low-sensitivity detectors |
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Authors: | R C Shah R P Johnson T Shimada and B M Hegelich |
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Institution: | (1) CLRC Rutherford Appleton Laboratory, Chilton, Didcot, Oxon OX11 0QX, UK |
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Abstract: | To address few-shot pulse contrast measurement, we present a correlator coupling the high gain of an optical parametric amplification
scheme with large pulse tilt. This combination enables a low sensitivity charge coupled device (CCD) to observe features in
the pulse intensity within a 50 ps single-shot window with inter-window dynamic range >107 and <0.5 mJ input energy. We also consider use of optical densities to boost the CCD dynamic range within a single temporal
window. |
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Keywords: | |
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