Surface plasmon assistant transmission

摘要

We review our recent research on plasmon-assisted transmission, which includes the observation of two-photon coherence in plasmon assisted transmission, the study of the spatial mode properties of plasmon assisted transmission and the plasmon-assisted transmission of high dimensional orbital angular moment entanglement. Our results show that the quantum coherence of biphoton is preserved in the conversion process of transforming biphoton to plasmons and then back to biphoton. Photons carrying different orbital angular momentums have different transmission efficiencies,while the coherence between these spatial modes can be preserved. High dimensional orbital angular momentum entanglement of a pair of photons can be survived after a photon-plasmon-photon conversion.