Plasmon-assisted transmission of high-dimensional orbital angular-momentum entangled stateX. F. Ren, G. P. Guo, Y. F. Huang, C. F. Li and G. C. Guo
Key Laboratory of Quantum Information, University of Science and Technology of China Hefei 230026, PRC
received 19 September 2006; accepted in final form 10 October 2006
published online 8 November 2006
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.
03.67.Mn - Entanglement production, characterization, and manipulation.
42.50.Dv - Nonclassical states of the electromagnetic field, including entangled photon states; quantum state engineering and measurements.
71.36.+c - Polaritons (including photon-photon and photon-magnon interactions).
© EDP Sciences 2006