Numeric Tuning of Surface Plasmon Enhanced Spontaneous Emission Inducted by Nano-Metallic Particle Systems Embedded in GaN-Based LED
| Autor: | Duan-Yang Liu, Yi-Zhu Lin, Jin-Wei Gao |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Materials science
Photon business.industry Surface plasmon Gallium nitride Purcell effect Condensed Matter Physics Polarization (waves) Surface plasmon polariton Electronic Optical and Magnetic Materials law.invention chemistry.chemical_compound chemistry law Optoelectronics Spontaneous emission Electrical and Electronic Engineering business Light-emitting diode |
| Zdroj: | Journal of Display Technology. 11:296-303 |
| ISSN: | 1558-9323 1551-319X |
| DOI: | 10.1109/jdt.2014.2385592 |
| Popis: | In this work, spontaneous emission enhancement inducted by surface plasmon on nano-metallic particle systems embedded in GaN-based LED is investigated numerically. The systems under study consist of two nano-Ag balls or cylinders. By numerically tuning geometrical parameters of the system and polarization of the photon emitting source, we investigate the dependence of spontaneous emission enhancement effect on those factors. It is found that the enhancement magnitude level and peak position are subject to geometrical characteristics of the nano-Ag components in different manners for symmetrical and asymmetrical systems respectively. Higher enhancement ratio for a specific wavelength can be obtained by tweaking parameters of asymmetrical system. Polarization dependence of enhancement effect can be utilized to improve performance of bi-color LED. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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