Designing Damage-Resistant Multilayer Dielectric Gratings for Petawatt-Class Lasers
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
We have successfully developed high efficiency dielectric gratings for chirped pulse amplification (CPA) pulse compression with a focus on improving damage thresholds for high peak power. Specifically, we focused on developing first-of-kind designs that operate at TM polarization. Unpublished modeling within our group shows that the electric field enhancement in the solid material for gratings operating at TM can be significantly less than for TE. Subsequently, the laser damage threshold of TM gratings should be higher by potentially a factor of 2X.
- Research Organization:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA)
- DOE Contract Number:
- AC52-07NA27344
- OSTI ID:
- 1889538
- Report Number(s):
- LLNL-TR-840201; 1061057
- Country of Publication:
- United States
- Language:
- English
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