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理论研究了金纳米球壳的几何结构参数, 及物理参量对局 域表面等离激元共振波长调谐特性的影响. 结果表明, 随着壳层厚度的增大, 球壳消光共振峰先蓝移后红移, 高阶峰转向时对应的壳层厚度比低阶峰大, 且该厚度与球壳内径的比值随内径尺寸的增大而减小, 随内核材料或外界环境介电常数的增大而增大, 散射共振峰也有类似的移动规律. 利用电子杂化效应和相位延迟效应对该现象进行了理论解释.
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关键词:
- 金纳米球壳 /
- 局域表面等离激元共振 /
- 波长调谐
[1] Li Z Y, Li J F 2011 Chin. Sci. Bull. 56 2631 (in Chinese) [李志远, 李家方 2011 科学通报 56 2631]
[2] Oldenburg S J, Averitt R D, Westcott S L, Halas N J 1998 Chem. Phys. Lett. 288 243
[3] Cole J R, Halas N J 2006 Appl. Phys. Lett. 89 153120
[4] Bai Y M, Wang J, Chen N F, Yao J X, Zhang X W, Yin Z G, Zhang H, Huang T M 2011 Chin. Phys. Lett. 28 087306
[5] Wu D J, Liu X J, 2010 Appl. Phys. Lett. 97 061904
[6] Liu C H, Li B Q 2011 J. Phys. Chem. C 115 5323
[7] Zhang H X, Gu Y, Gong Q H 2008 Chin. Phys. B 17 2567
[8] Prodan E, Nordlander P 2004 J. Chem. Phys. 120 5444
[9] Westcott S L, Jackson J B, Radloff C, Halas N J 2002 Phys. Rev. B 66 155431
[10] Lassiter J B, Aizpurua J, Hernandez L I, Brandl D W, Romero I, Lal S, Hafner J H, Nordlander P, Halas N J 2008 Nano Lett. 8 1212
[11] Averitt R D, Westcott S L, Halas N J 1999 J. Opt. Soc. Am. B 16 1824
[12] Wang H, Brandl D W, Nordlander P, Halas N J 2007 Acc. Chem. Res. 40 53
[13] Li B Q, Liu C H 2011 Opt. Lett. 36 247
[14] Johnson P B, Christy R W 1972 Phys. Rev. B 6 4370
[15] Bohren C F, Huffman D R 1983 Absorption and Scattering of Light by Small Particles (2nd Edn.) (New York: John Wiley & Sons) p103
[16] Prodan E, Lee A, Nordlander P 2002 Chem. Phys. Lett. 360 325
[17] Wu D J, Liu X J 2008 Acta Phys. Sin. 57 5138 (in Chinese) [吴大建, 刘晓峻 2008 物理学报 57 5138]
[18] Zhu J, Li J J, Zhao J W 2011 Appl. Phys. Lett. 99 101901
[19] Han T, Meng F Y, Zhang S, Wang J Q, Cheng X M 2011 Acta Phys. Sin. 60 027303 (in Chinese) [韩涛, 孟凡英, 张松, 汪建强, 程雪梅 2011 物理学报 60 027303]
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[1] Li Z Y, Li J F 2011 Chin. Sci. Bull. 56 2631 (in Chinese) [李志远, 李家方 2011 科学通报 56 2631]
[2] Oldenburg S J, Averitt R D, Westcott S L, Halas N J 1998 Chem. Phys. Lett. 288 243
[3] Cole J R, Halas N J 2006 Appl. Phys. Lett. 89 153120
[4] Bai Y M, Wang J, Chen N F, Yao J X, Zhang X W, Yin Z G, Zhang H, Huang T M 2011 Chin. Phys. Lett. 28 087306
[5] Wu D J, Liu X J, 2010 Appl. Phys. Lett. 97 061904
[6] Liu C H, Li B Q 2011 J. Phys. Chem. C 115 5323
[7] Zhang H X, Gu Y, Gong Q H 2008 Chin. Phys. B 17 2567
[8] Prodan E, Nordlander P 2004 J. Chem. Phys. 120 5444
[9] Westcott S L, Jackson J B, Radloff C, Halas N J 2002 Phys. Rev. B 66 155431
[10] Lassiter J B, Aizpurua J, Hernandez L I, Brandl D W, Romero I, Lal S, Hafner J H, Nordlander P, Halas N J 2008 Nano Lett. 8 1212
[11] Averitt R D, Westcott S L, Halas N J 1999 J. Opt. Soc. Am. B 16 1824
[12] Wang H, Brandl D W, Nordlander P, Halas N J 2007 Acc. Chem. Res. 40 53
[13] Li B Q, Liu C H 2011 Opt. Lett. 36 247
[14] Johnson P B, Christy R W 1972 Phys. Rev. B 6 4370
[15] Bohren C F, Huffman D R 1983 Absorption and Scattering of Light by Small Particles (2nd Edn.) (New York: John Wiley & Sons) p103
[16] Prodan E, Lee A, Nordlander P 2002 Chem. Phys. Lett. 360 325
[17] Wu D J, Liu X J 2008 Acta Phys. Sin. 57 5138 (in Chinese) [吴大建, 刘晓峻 2008 物理学报 57 5138]
[18] Zhu J, Li J J, Zhao J W 2011 Appl. Phys. Lett. 99 101901
[19] Han T, Meng F Y, Zhang S, Wang J Q, Cheng X M 2011 Acta Phys. Sin. 60 027303 (in Chinese) [韩涛, 孟凡英, 张松, 汪建强, 程雪梅 2011 物理学报 60 027303]
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