Electromagnetic Energy Redistribution in Coupled Chiral Particle Chain-Film System
| Autor: | Yingzhou Huang, Linhong Qv, Yuxia Tang, Yurui Fang |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Materials science
High Energy Physics::Lattice Chiral plasmonic nanostructures Near and far field 02 engineering and technology 010402 general chemistry 01 natural sciences Electromagnetic radiation Molecular physics symbols.namesake Electric field lcsh:TA401-492 General Materials Science Circular polarization Plasmon Nano Express Chiral near-field enhancement Chiral focusing 021001 nanoscience & nanotechnology Condensed Matter Physics 0104 chemical sciences Electromagnetic energy focusing Excited state symbols lcsh:Materials of engineering and construction. Mechanics of materials 0210 nano-technology Chirality (chemistry) Raman scattering |
| Zdroj: | Nanoscale Research Letters Nanoscale Research Letters, Vol 13, Iss 1, Pp 1-11 (2018) |
| ISSN: | 1556-276X 1931-7573 |
| Popis: | Metal nanoparticle-film system has been proved that it has the ability of focusing light in the gap between particle and film, which is useful for surface-enhanced Raman scattering and plasmon catalysis. The rapid developed plasmonic chirality can also be realized in such system. Here, we investigated an electromagnetic energy focusing effect and chiral near-field enhancement in a coupled chiral particle chain on gold film. It shows large electric field enhancement in the gap between particle and film, as well as chiral near field. The enhancement properties at resonant peaks for the system excited by left circularly polarized light and right circularly polarized light are obviously different. This difference resulted from the interaction of circularly polarized light and the chiral particle-film system is analyzed with plasmon hybridization. The enhanced optical activity can provide promising applications for the enhancement of chiral molecule sensor for this chiral particle chain-film system. Electronic supplementary material The online version of this article (10.1186/s11671-018-2600-8) contains supplementary material, which is available to authorized users. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink