Highly efficient transmission gratings in fused silica for chirped-pulse amplification systems |
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| Authors: | Clausnitzer Tina Limpert Jens Zöllner Karsten Zellmer Holger Fuchs Hans-Joerg Kley Ernst-Bernhard Tünnermann Andreas Jupé Marco Ristau Detlev |
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| Affiliation: | Institute of Applied Physics, Friedrich-Schiller-University Jena, Max-Wien-Platz 1, Jena 07743, Germany. clausnitzer@iap.uni-jena.de |
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| Abstract: | We report on highly efficient transmission gratings in fused silica with a grating period of 800 nm generated by electron-beam lithography. At a wavelength of 1060 nm, 95% diffraction efficiency is achieved under Littrow conditions. The damage threshold, extremely enhanced compared with conventional gold-coated diffraction gratings, makes these gratings the key elements in high average power (>100 W) femtosecond fiber chirped-pulse amplification systems. |
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