论文部分内容阅读
对球形碱金属气室导致的线偏光振动方向转角进行了理论研究与差分检测实验测量。结果表明,当光束通过中心位置、入射面与振动方向相垂直或平行的位置时,气室对其偏振态没有影响,而其他位置均会产生一定偏转角,且偏转角随位置的不同而变化。对直径12mm、壁厚0.9mm的气室,偏离中心0.7 mm处产生的理论偏转角约为0.08°。在使用球形碱金属气室作为中心元件的仪器时,需要考虑其对线偏光转角的明显影响。
The polarization angle direction of linear polarized light caused by the spherical Alkaline gas chamber has been theoretically studied and experimentally measured by differential detection. The results show that the gas chamber has no influence on the polarization state when the light beam passes through the center position and the incident surface is perpendicular or parallel to the vibration direction, while other positions all have a certain deflection angle, and the deflection angle varies with the position . For a chamber with a diameter of 12 mm and a wall thickness of 0.9 mm, the theoretical deflection angle of 0.7 mm off the center is about 0.08 °. In the case of instruments that use a spherical alkali cell as a central element, the obvious effect on the linear polarization angle needs to be taken into account.