Enantiodetection of cyclic three-level chiral molecules in a driven cavity

We propose an enantiodetection method of chiral molecules in a cavity with an external drive. The chiral molecules are coupled with a quantized cavity field and two classical light fields to form the cyclic three-level systems. The chirality-dependent cavity-assisted three-photon process in the three-level systems leads to the generation of intracavity photons. Simultaneously, the drive field also results in a chirality-independent process of the generation of intracavity photons. Based on the interference between the intracavity photons generated from these two processes, one can detect the enantiomeric excess of chiral mixture via monitoring the transmission rate of the drive field. It is also shown that our method can work in the single-molecule weak-coupling region and in the absence of additional enantiopure samples. These advantages make it offer promising applications in enantiodetection of chiral molecules.