旋转振动对格兰·泰勒棱镜透射光强扰动影响的研究

THE ROTARY VIBRATION INFLUENCE ON THE TRANSMITTED LIGHT INTENSITY'S PERTURBANCE OF THE GLAN TAYLOR PRISM

格兰·泰勒棱镜的透射光强随旋转角出现周期性扰动 .转动过程中棱镜振动引起入射角的微小振动 ,从而导致透射光强的扰动 .这种随机微扰的出现对出射光的质量影响很大 .分析了转动所致棱镜的振动对透射光强扰动大小的影响 .讨论了减小扰动的方法 .

Phenomenon of transmitted linearly polarized light intensity's perturbance of the Glan Taylor prism with varying rotation angle is observed in the experiment. The mini-shake of the Glan Taylor prism induced the vibration of the incident angle, which causes perturbance of the transmitted light intensity. The random disturbance influences much more on the quality of the polarized light. Relationship between transmitted light intensity's perturbance and vibration of incident angle is analyzed. Methods for weakening the disturbance is discussed.