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arXiv · 0803.2672

Efficient output coupling of intracavity high harmonic generation

D. C. Yost·T. R. Schibli·Jun Ye
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Abstract

We demonstrate a novel technique for coupling XUV harmonic radiation out of a femtosecond enhancement cavity. We use a small-period diffraction grating etched directly into the surface of a dielectric mirror. For the fundamental light, this element acts as a high reflector. For harmonic wavelengths, it acts as a diffraction grating, coupling XUV radiation out of the cavity. Using this method, we observed the 3rd through 21st odd harmonics with a dramatic increase in usable power over previous results of high harmonic generation at high repetition rates.

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D. C. Yost, T. R. Schibli, Jun Ye. 2008-03-18. Efficient output coupling of intracavity high harmonic generation. https://doi.org/10.1364/ol.33.001099

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