一束异常偏振的Ar~+激光束(λ=488nm,I=3.4W/cm~2)斜入射到一块沿主坐标轴切割的Cu掺杂的钾钠铌酸锶钡(KNSBN)晶体上,在后面的观察屏上,观察到一种新型的各向异性散射环,同时还出现了强烈的非对称扇形效应和非对称各向同性及各向异性锥形散射以及法线方向的各向同性散射振荡。理论分析表明前者是由后者引起的,且理论值和实测值吻合的非常好。 A beam of anomalously polarized Ar ~ + laser beam (λ = 488 nm, I = 3.4 W / cm ~ 2) is obliquely incident on a piece of Cu-doped KNSBN crystals cut along the principal axis, On the latter observation screen, a new type of anisotropic scattering ring was observed, along with strong asymmetric fan-shaped effects and asymmetric isotropic and anisotropic cone-shaped scattering as well as isotropy in the normal direction Scattering oscillation. Theoretical analysis shows that the former is caused by the latter, and the theoretical value is in good agreement with the measured value.