期刊
APPLIED PHYSICS LETTERS
卷 97, 期 21, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3519985
关键词
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资金
- Conseil General de l'Essonne
- EURYI scheme award
- French National Research Agency [ANR-09-NANO-020 Gospel, ANR-07-NANO-039 NanoFTIR]
- C'Nano Ile de France (PSTS)
We demonstrate a compact, integrated device in which surface plasmon polaritons (SPPs) are injected into a passive metal waveguide. We directly excite a SPP mode at a metal-air interface using a room-temperature midinfrared quantum cascade laser which is integrated onto the microchip. The SPP generation relies on end-fire coupling and is demonstrated via both far-field and near-field imaging techniques in the midinfrared. On one hand, a metallic diffraction grating is used to scatter in the far-field a portion of the propagating SPPs, thus allowing their detection with a microbolometer camera. On the other hand, direct images of the generated SPPs in the near-field were collected with a scanning optical microscope. (C) 2010 American Institute of Physics. [doi:10.1063/1.3519985]
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