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Metal multilayer dielectric gratings (MMDGs) for pulse compressors used in high-energy laser systems should enable high efficiency, as well as provide broad bandwidths and high laser-induced damage thresholds. The effects of duty cycle and the ridge slope angle on the MMDG bandwidth is investigated. Keeping all other parameters constant, the bandwidth remains nearly the same with increasing duty cycle...
An optimized multilayer dielectric grating structure is presented with high diffraction efficiency over 90% in 22 degree angular spectral width centered at 1040 nm, the important role of thin match layer in which has been investigated.
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