title: Broadband thin-film polarizers for high-power laser systems.
abstract: We propose to construct broadband thin-film polarizers (TFPs) by combining the polarizing regions of long-wave pass and short-wave pass stacks. The polarization bandwidth can be broader than traditional TFPs by roughly a factor of 2. We designed and fabricated two HfO(2)/SiO(2) Brewster's angle TFPs with a high contrast ratio in the spectral range of 1064±25 nm. The laser-induced damage was investigated and illustrates that the two designs possess quite different laser damage properties due to the different electric field distributions. Nevertheless, broadband TFPs with high laser-induced damage threshold can be achieved with proper coating design.
authors: Institute of Precision Optical Engineering, Department of Physics, Tongji University, Shanghai, China.
authors: Jinlong
authors: J
authors: Zhang
authors: Yujiang
authors: Y
authors: Xie
authors: Xinbin
authors: X
authors: Cheng
authors: Tao
authors: T
authors: Ding
authors: Zhanshan
authors: Z
authors: Wang