High dynamic range measurement of temporal shape and contrast of ultrashort UV pulses |
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| Authors: | K. Osvay I.N. Ross J.M.D. Lister C.J. Hooker |
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| Affiliation: | (1) Department of Optics and Quantum Electronics, JATE University P.O. Box 406, Szeged H-6701, Hungary (Fax: +36-62/425-854, E-mail: osvay@physx.u-szeged.hu), HU;(2) Central Laser Facility, Rutherford Appleton Laboratory, Chilton, Didcot, Oxon OX11 0QX, UK, UK |
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| Abstract: | This paper presents an experimental technique for measurement of the contrast ratio of ultrashort UV pulses. As a multiple-shot device based on the scheme of difference frequency generation this is, to our knowledge, the only cross correlator in the UV so far, which offers a dynamic range of 107 and operates with input pulse energies as low as 5 μJ. By changing the cross correlator into single-shot mode, the temporal shape of the UV pulse can be measured. Received: 26 October 1998 / Revised version: 13 January 1998 / Published online: 28 April 1999 |
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| Keywords: | PACS: 42.55.Lt 42.65. 42.79.Hp |
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