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Physics Letters A

Observation of two-photon coherence in plasmon-assisted transmission

Guo‐Ping Guo, Xi‐Feng Ren, Yun‐Feng Huang, Chuan‐Feng Li, Z. Y. Ou, Guang‐Can Guo

Published Sep 27, 2006• 11 citations
Publisher
DOI
10.1016/j.physleta.2006.09.036

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We present an experimental evidence that high-dimensional orbital angular-momentum entanglement of a pair of photons can be survived after a photon-plasmon-photon conversion. The information of spatial modes can be coherently transmitted by surface plasmons. This experiment primarily studies the high-dimensional entangled systems based on surface plasmon with subwavelength structures. It maybe useful in the investigation of spatial-mode properties of surface plasmon-assisted transmission through subwavelength hole arrays.