Strong and large area field enhancement outside a microcavity due to propagating surface plasmons and standing wave effect
| Autor: | Yunxia Zhang, Bin Wang, Feng Wang, Xin Sun, Li Haoyu, Senpeng Huang, Yufang Wang, Xiaoxuan Xu, Meng Wang, Cunzhou Zhang |
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| Rok vydání: | 2016 |
| Předmět: |
Physics
genetic structures Condensed matter physics Field (physics) business.industry Surface plasmon Optical property Physics::Optics 02 engineering and technology 021001 nanoscience & nanotechnology Laser 01 natural sciences Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials law.invention 010309 optics Standing wave Wavelength Optics law 0103 physical sciences 0210 nano-technology business |
| Zdroj: | Journal of Optics. 18:105004 |
| ISSN: | 2040-8986 2040-8978 |
| Popis: | We investigated the optical property of periodic inverted pyramidal microcavities and observed large area field enhancement outside a cavity when the incident wavelength and structure parameters match certain relations. The mechanism of this phenomenon has been studied. Propagating surface plasmons and the standing wave effect both contribute to the field enhancement outside the cavity. The relations between the incident wavelength and structure parameters have been clarified. Based on the relations, one can control the field enhancement outside the cavity for a specific laser wavelength. |
| Databáze: | OpenAIRE |
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