铷原子气室实验：红外激光探测与蓝光耦合

The experiment uses a 780nm infrared laser to generate detection light, which passes through a rubidium atomic chamber and is reflected by a beam splitter, then detected by a photodetector. A 480nm blue laser generates coupling light, which propagates in the opposite direction to the detection light through the rubidium atomic chamber, is reflected by the beam splitter, and then blocked by a shutter.