Observation of two-photon coherence in plasmon-assisted transmission |
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| Authors: | Guo-Ping Guo Xi-Feng Ren Yun-Feng Huang Chuan-Feng Li Zhe-Yu Ou Guang-Can Guo |
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| Institution: | 1. Key Laboratory of Quantum Information and Department of Physics, University of Science and Technology of China, Hefei 230026, People''s Republic of China;2. Department of Physics, Indiana University-Purdue University Indianapolis, 402 North Blackford Street, Indianapolis, IN 46202, USA |
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| Abstract: | We experimentally study two-photon coherence in plasmon-assisted transmission with a two-photon Mach–Zehnder (MZ) interferometer. Two collinear photons of identical or orthogonal polarization are simultaneously incident on one optically thick metal film, perforated with a periodic array of subwavelength holes. Interference fringes with two-photon de Broglie wavelength are observed, which indicates that the quantum coherence of biphoton is preserved in surface plasmon assisted transmission. |
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| Keywords: | 03 67 Mn 42 50 Dv 71 36 +c 73 20 Mf |
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