Near-field observations of surface plasmon excitation in photon-plasmon coupling structure

Xining Zhang; Zhe Ma; Limin Tong

doi:10.1117/12.2037105

21 December 2013 Near-field observations of surface plasmon excitation in photon-plasmon coupling structure

Xining Zhang, Zhe Ma, Limin Tong

Proceedings Volume 9047, 2013 International Conference on Optical Instruments and Technology: Micro/Nano Photonics and Fabrication; 904703 (2013) https://doi.org/10.1117/12.2037105
Event: International Conference on Optical Instruments and Technology (OIT2013), 2013, Beijing, China

Abstract

We demonstrate surface plasmon (SP) excitation in Ag nanowires directly coupled with a microfiber in the presence of a MgF₂ substrate. With scanning near-field optical microscopy, evident light output from the Ag nanowire and the evanescent field of the coupling structure are observed in the near-field optical image. The tip enhancement of a Ag nanowire is also analyzed from the optical intensity graph. Results presented in this work suggest a simple SP excitation approach for plasmonic and photonic circuits with high compactness.

Citation Download Citation

Xining Zhang, Zhe Ma, and Limin Tong "Near-field observations of surface plasmon excitation in photon-plasmon coupling structure", Proc. SPIE 9047, 2013 International Conference on Optical Instruments and Technology: Micro/Nano Photonics and Fabrication, 904703 (21 December 2013); https://doi.org/10.1117/12.2037105

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