Electromagnetically induced transparency at optical nanofiber–cesium vapor interface Project supported by the National Key Research and Development Program of China (Grant No. 2017YFA0304203), the National Natural Science Foundation of China (Grant Nos. 61675120, 11434007, and 61875110), Project of the National Natural Science Foundation of China for Excellent Research Team (Grant No. 61121064), the Shanxi “1331 Project” Key Subjects Construction, PCSIRT, China (Grant No. IRT 17R70), and the 111 Project, China (Grant No. D18001). |
Schematic diagram of the optical experimental setup: λ/2, half-wave plate; PBS, polarization beam splitter; ND, neutral density filter; PD, photodiode; filter, 852-nm bandpass filter; PMT, photomultiplier tube; SAS, saturated absorption spectrum. The probe and control lasers are counter-propagating through the ONF. |