Low-dispersion low-loss dielectric gratings for efficient ultrafast laser pulse compression at high average powers

David A. Alessi, Hoang T. Nguyen, Jerald A. Britten +2

We have developed low-dispersion (1480 l/mm), resonance-free, diffraction gratings made of dielectric materials resistant to femtosecond laser damage $(Si{O}_2/Hf{O}_2)$. A 14 cm d…