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Light extraction beyond total internal reflection using one-dimensional plasmonic crystals

唐唐添加于 2011-9-29 05:13 | 1956 次阅读 | 0 个评论

作者
McCarron R, O'Connor D, Bouillard J-S, Dickson W, Zayats AV
摘要
We demonstrate the application of plasmonic crystals for extracting light trapped in the substrate due to total internal reflection (TIR). The broadband transmission properties of one-dimensional plasmonic crystals have been investigated, both experimentally and numerically, beyond the TIR critical angle in order to reveal the role of plasmonic modes in this process. Through optimisation of the traditional square slit unit cell geometry of the crystals, transmission coefficients of up to 47% were obtained in the TIR regime. An U-shaped cell geometry with a few nm thick continuous film was found to significantly modify the plasmonic modes of the crystal in addition to exhibiting highly tuneable, structurally dispersive transmission peaks, further increasing transmission in the TIR regime up to 56%. Such structures exhibit better than glass transparency at the design wavelength when integrated over all incident angles.
详细资料
- 文献种类: Journal Article
- 期刊名称: Applied Physics Letters
- 期刊缩写: Appl. Phys. Lett.
- 期卷页: 2011年第99卷第8期 081106页
- ISBN: 0003-6951
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