Interface and material engineering for zigzag slab lasers.

ABSTRACT: Laser damage of zigzag slab lasers occurs at interface between laser crystal and SiO₂ film. Although an additional HfO₂ layer could be used to manipulate electric-field on the crystal-film interface, their high absorption and polycrystalline structure were unacceptable. SiO₂ was then doped in HfO₂ to suppress its crystallization and to achieve low absorption by annealing. Hf_xSi_1-xO₂ nanocomposite layers were then inserted between laser crystal and SiO₂ film to minimize electric-field at crystal-film interface. Laser damage resistance of this new architecture is two times higher than that of traditional zigzag slab lasers.

SUBMITTER: Liu F 

PROVIDER: S-EPMC5711792 | biostudies-literature | 2017 Dec

REPOSITORIES: biostudies-literature