金纳米环结构的光学性质研究

孙中华; 王红艳; 张志东; 张中月

doi:10.7498/aps.60.047808

摘要

采用离散偶极子近似方法(DDA)研究了两种不同形状的金纳米环结构的消光光谱及其近电场分布, 研究了等离子体消光峰的红移、蓝移现象及消光系数与结构参数之间的关系, 并与盘状的金纳米结构进行了比较. 在等离子体共振峰波长入射时, 金纳米环结构比金纳米盘结构产生更大的局域增强电场分布, 横截面为圆形的金纳米环结构比横截面为矩形的结构具有更大的局域增强电场分布, 更适合作为表面增强拉曼散射的衬底.

关键词:

The extinction spectrum and the electric field distribution of gold nanoring structure have been calculated and compared with those of gold nanoplate structure by using the discrete dipole approximation method. It is found that the plasmon resonance peaks can have a red-shift or blue-shift when the radius size and the shape of the nanoring change. The gold nanoring with square cross section has a largest extinction coefficient.At the main plasmon peak,the nanoring with circlar cross section has much stronger electric field and larger electric field distribution,which can serves as the surface enhanced Raman scattering substrate for biological and chemical detections.

Keywords:

作者及机构信息

(1)西南大学物理科学与技术学院,重庆 400715; (2)西南交通大学物理科学与技术学院,成都 610031

基金项目: 国家自然科学基金(批准号:10974161)和中央高校基本科研业务费专项基金(批准号:SWJTU09CX079, SWJTU09ZT39, 2010ZT06)资助的课题.

Authors and contacts

(1)School of Physical Science and Technology,Southwest Jiaotong University,Chengdu 610031,China; (2)School of Physical Science and Technology,Southwest University,Chongqing 400715, China

参考文献

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施引文献

[1]	Barbillon G, Bijeon J L, Plain J, Royer P 2009 Thin Solid Films. 517 2997
[2]	Khlebtsov B N, Khlebtsov N G 2007 J. Quant. Spectr. Rad. Trans. 106 154
[3]	Fang J, Yi Y, Ding B, Song X 2008 Appl. Phys. Lett. 92 131115
[4]	Han Y, LiuY W, Ding Y G, Liu P K 2010 Acta Phys. Sin. 59 0466(in Chinese)[韩勇、刘燕文、丁耀根、刘濮鲲 2010 59 0466]
[5]	Liu N, Guo H, Fu L, Kaiser S, Schweizer H, Giessen H 2008 Nature Mater. 7 31
[6]	Hirsch L R, Gobin A M, Lowery A R, Tam F, Drezek R A, Halas N, West J L 2006 Ann. Biomed. Eng. 34 15
[7]	Liao H W, Nehl C L, Hafner J H 2006 Nanomedicine 1 201
[8]	Tian Z Q, Ren B, Wu D Y 2002 J. Phys. Chem. B 106 9463
[9]	Campion A, Kambhampati P 1998 Chem. Soc. Rev. 27 241
[10]	Zhang Z Y, Zhao Y P 2007 J. Appl. Phys. 102 113308
[11]	Huang Q, Wang J, Cao L R, Sun J, Zhang X D, Geng W D, Xiong S Z, Zhao Y 2009 Acta Phys. Sin. 58 1980(in Chinese)[黄茜、王京, 曹丽冉、孙建、张晓丹、耿卫东、熊绍珍、赵颖 2009 58 1980]
[12]	Chern R L, Liu X X, Chang C C 2007 Phys. Rev. E 76 016609
[13]	Zhu B H, Wang F F, Zhang K, Mang B H, Gou L J, Qian S X 2007 Acta Phys. Sin. 56 4024(in Chinese)[朱宝华、王芳芳、张琨、马国宏、郭立俊、钱士雄 2007 56 4024]
[14]	Wu D J, Xu X D, Liu X J 2008 Solid State Commun. 146 7
[15]	Elghanian R, Storhoff J J, Mucic R C, Letsinger R L, Mirkin C A 1997 Science 277 1078
[16]	Wei H, Li B L, Li J, Wang E K, Dong S J 2007 Chem. Commun. 3735 3737
[17]	Hou S Y, Chen H K, Cheng H C, Huang C Y 2007 Anal. Chem. 79 980
[18]	Chu Y Z, Schenbrun E, Yang T, Crozier K B 2008 Appl. Phys. Lett. 93 181108
[19]	Jin R C, Cao Y W, Mirkin C A, Kelly K L, Schatz G C, Zheng J G 2001 Science 294 1901
[20]	Zande B M I V D, Marcel R B, Lambertus G J F, Christian S 2000 Langmuir 16 451
[21]	Jana N R, Gearheart L, Murphy C J 2001 Langmuir 17 6782
[22]	Murphy C J, Jana N R 2002 Adv. Mater. 14 80
[23]	Yu Y Y, Chang S S, Lee C L, Wang C R C 1997 J. Phys. Chem. B 101 6661
[24]	Jensen T R, Schatz G C, Richard P V D 1999 J. Phys. Chem. B 103 2394
[25]	Ungureanu C, Rayavarapu R G, Manohar S, Leeuwen T G V 2009 J. Appl. Phys. 105 102032
[26]	Wu D J, Liu X J 2008 Acta Phys. Sin. 57 5183(in Chinese)[吴大建、刘晓峻 2008 57 5138]
[27]	Aizpurua J, Blanco L, Hanarp P, Sutherland D S, Kll M, Bryant G W, García de Abajo F J 2004 Journal of Quantitative Spectroscopy & Rad ative Transfer 89 11
[28]	Hao F, Larsson E M, Ali T A, Sutherland D S, Nordlander P 2008 Chem. Phys. Lett. 458 262
[29]	Liu H G, Wang C W, Wu J P, Lee Y I, Hao J C 2008 Colloids and Surfaces A:Physicochem. Eng. Aspects 312 203
[30]	Sheridan A K, Clark A W, Glidle A, Cooper J M, Cumming D R S 2007 Appl. Phys. Lett. 90 143105
[31]	Jain P K, El-Sayed M A 2007 Nano Lett. 7 2854
[32]	Purcell E M, Pennypacker C R, 1973 Astrophys J. 186 705
[33]	Draine B T, Flatau P J, 1994 J. Opt. Soc. Am. A 11 1491
[34]	Johnson P B, Christy R W, 1972 Phys. Rev. B 6 4370
[35]	Kubo R 1962 Phys. Soc. Japan. 17 975
[36]	Wang K, Yang G, Long H, Li Y H, Dai N L, Lu P X 2008 Acta Phys. Sin. 57 3862(in Chinese)[王凯、杨光、龙华、李玉华、戴能利、陆培祥 2008 57 3862]
[37]	Dinh T V 1998 Trac. Trends Anal. Chem. 17 557
[38]	Campion A, Kambhampati P 1998 Chem. Soc. Rev. 27 241
[39]	Liu M M, Zhang G P, Zou M 2006 Acta Phys. Sin. 55 4608(in Chinese)[刘敏敏、张国平、邹明 2006 55 4608]

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