Hybrid modes in plasmonic cavity array for enhanced hot-electron photodetection
| Autor: | Ting Mei, Soo Jin Chua, Shuhai Liang, Min Liu, Dawei Zhang, Zhiqiang Yang, Wending Zhang |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
010302 applied physics
Materials science Silicon Physics::Instrumentation and Detectors business.industry Surface plasmon Physics::Optics Resonance chemistry.chemical_element 02 engineering and technology Photodetection Substrate (electronics) 021001 nanoscience & nanotechnology 01 natural sciences Atomic and Molecular Physics and Optics Optics chemistry 0103 physical sciences Polariton 0210 nano-technology business Absorption (electromagnetic radiation) Plasmon |
| Zdroj: | Optics express. 25(17) |
| ISSN: | 1094-4087 |
| Popis: | The plasmonic characteristics of a periodic array of cavities in a silicon substrate are investigated for hot-electron photodetection. Resonances of cavity surface plasmons bound to air cavities and silicon cavities, and resonance of Bragg-surface plasmon polaritons are illustrated by the map of metal absorption. Hybrid modes formed with combination of these modes can strongly enhance absorption in metal and be exploited to optimize hot-electron photodetectors for single-band and dual-band detection at optical communication wavelengths. |
| Databáze: | OpenAIRE |
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