双色激光偏振演示实验

Demonstration of polarization using double color laser

利用红色和绿色激光束产生2束偏振方向分别平行及垂直于入射面的偏振光,再混合为1束光.通过缓慢改变光束的偏振结构及其与入射透明介质的夹角,使反射与透射光斑颜色及明暗发生变化,演示了马吕斯定律、菲涅耳关系和布儒斯特定律等光的偏振性质.

Using red and green laser beam to produce two polarized light beams whose polarization directions are respectively parallel and vertical to the incidence plane, then the two polarized light beams are mixed. By changing the polarization con{iguration o{ the beam and the incident angles, then the color and the brightness o{ the reflected and transmitted light spot will vary accordingly, Malus law, Fresnel law and Brewster law could be demonstrated.