Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9785971 | Optics Communications | 2005 | 7 Pages |
Abstract
A new method to improve the temporal contrast of an ultra-short laser pulse has been developed. This technique uses a Sagnac interferometer in combination with a non-linear medium. A phase shift induced in the ultra-short pulse by non-linear effect separates it from the amplified spontaneous emission background. Experiments with a 1Â kHz, 55Â fs, 1Â mJ Ti:Sa laser were performed. The temporal contrast measurements have shown a contrast improvement of four orders of magnitude.
Keywords
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Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Amandine Renault, Frédérika Augé-Rochereau, Thomas Planchon, Pascal D'Oliveira, Thierry Auguste, Gilles Chériaux, Jean-Paul Chambaret,