High-efficiency, broad band, high-damage threshold high-index gratings for femtosecond pulse compression

Abstract : High efficiency, broad-band TE-polarization diffraction over a wavelength range centered at 800 nm is obtained by high index gratings placed on a non-corrugated mirror. More than 96% efficiency wide band top-hat diffraction efficiency spectra, as well as more than 1 J/cm2 damage threshold under 50 fs pulses are demonstrated experimentally. This opens the way to high-efficiency Chirped Pulse Amplification for high average power laser machining by means of all-dielectric structures as well as for ultra-short high energy pulses by means of metal-dielectric structures.
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https://hal-ujm.archives-ouvertes.fr/ujm-00381564
Contributor : Manuel Flury <>
Submitted on : Tuesday, May 5, 2009 - 6:51:06 PM
Last modification on : Friday, September 6, 2019 - 11:14:03 AM

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  • HAL Id : ujm-00381564, version 1

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Federico Canova, Olivier Uteza, Jean-Paul Chambaret, Manuel Flury, Svetlen Tonchev, et al.. High-efficiency, broad band, high-damage threshold high-index gratings for femtosecond pulse compression. Optics Express, Optical Society of America, 2007, 15 (23), pp.15324-15334. ⟨ujm-00381564⟩

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