The effects of optical medium including light beam splitter and reflecting metallic film on laser polarization state in a coherent CO_2 lidar are discussed.
讨论了红外相干激光雷达中光学介质对偏振光束的影响程度，包括光束分束片和反射镜片的影响，给出了定量的结果。
Then you send laser light through a beam splitter to divide the beam between the two arms, and let the light bounce back and forth a few times before returning to the beam splitter.
然后你通过分光器发射一束激光，让光线在两条边不断反射再回到分光器。
The returning light beams merge together at the beam splitter and create an interference pattern of light and dark regions where the light waves either cancel out or reinforce each other.
返回的两束光在分束器处汇合，产生由亮区和暗区组成的干涉图案，图案中，光波要么相互抵消要么相互增强。
应用推荐