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The effects of ellipse shape, polarization direction of incident light, shell thickness, and dielectric constants of core and embedding medium on the localized surface plasmon resonance (LSPR) of elliptical gold nanotube have been investigated by the Finite Difference Time Domain (FDTD) method. When the semimajor axis is fixed, it is found that with the increase of the semiminor axis of the ellipse the extinction peak of the gold nanotube has a red-shift. With the increase of the angle between the incident polarization and the semimajor axis, the extinction peak has a red-shift. With the shell thickness decreasing, the extinction peak of gold nanotube also has a red-shift. Furthermore, we also find that the increase of the dielectric constant for core or embedding medium will induce a red-shift of LSPR in gold nanotube. The change of the extinction peak is ascribed to the plasmon hybridization and the competition between the variations of conduction and oscillation electrons.
[1] Krenn J R, Dereux A, Weeber J C, Bourillot E, Lacroute Y, Goudonnet J P 1999 Phys. Rev. Lett. 82 2590
[2] Maier S A, Brongersma M L, Kik P G, Meltzer S, Re-quicha A A G, Atwater H A 2001 Adv. Mater. 13 1501
[3] Quinten M, Leitner A, Krenn J R, Aussenegg F R 1998 Opt. Lett. 23 1331
[4] Maier S A, Kik P G, Atwater H A, Meltzer S, Harel E, Koel B E, Requicha A A G 2003 Nat. Mater. 2 229
[5] Zhang H X, Gu Y, Gong Q H 2008 Chin. Phys. B 17 2567
[6] Kreibig U, Vollmer M 1995 Optical Properties of Metal Clusters (Berlin: Springer)
[7] Kelly K L, Coronado E, Zhao L L, Schatz G C 2003 J. Phys. Chem. B 107 668
[8] Mock J J, Hill R T, Degiron A, Zauscher S, Chilkoti A, Smith D R 2008 Nano Lett. 8 2245
[9] Wei H, Hao F, Huang Y Z, Wang W Z, Nordlander P, Xu H X 2008 Nano Lett. 8 2497
[10] Brewer S H, Anthireya S J, Lappi S E, Drapcho D L, Franzen S 2002 Langmuir 18 4460
[11] Prodan E, Nordlander P 2004 J. Chem. Phys. 120 5444
[12] Westcott S L, Jackson J B, Radloff C, Halas N J 2002 Phys. Rev. B 66 155431
[13] Wu D J, Liu X J 2008 Acta Phys. Sin. 57 5138 (in Chinese) [吴大建、刘晓峻 2008 57 5138]
[14] Zhu J, Bai S W, Zhao J W, Li J J 2009 Appl. Phys. A 97 431
[15] Leveque G, Martin O J F 2006 Opt. Express 14 9971
[16] Limmer S J, Chou T P, Cao G Z 2003 J. Phys. Chem. B 107 13313
[17] Mock J J, Oldenburg S J, Smith D R, Schultz D A, Schultz S 2002 Nano Lett. 2 465
[18] Hendren W R, Murphy A, Evans P, Connor D, Wurtz G A, Zayats A V, Atkinson R, Pollard R J 2008 J. Phys.: Condens. Matter 20 362203
[19] Allain L R, Vo-Dinh T 2002 Anal. Chim. Acta 469 149
[20] Hirsch L R, Jackson J B, Lee A, Halas N J, West J L 2003 Anal. Chem. 75 2377
[21] Sershen S R, West J L 2000 J. Biomed. Mat. Res. 51 293
[22] ONeal D P, Hirsch L R, Halas N J, Paynea J D, West J L 2004 Cancer Lett. 209 171
[23] Oldenburg S J, Hale G D, Radloff C, Halas N J 1999 Appl. Phys. Lett. 75 1063
[24] Prodan E, Radloof C, Halas N J, Nordlander P 2003 Science 302 419
[25] Wang H, Goodrich G P, Tam, Oubre F C, Nordlander P, Halas N J 2005 J.Phys.Chem. B 109 11083
[26] Wu D J, Xu X D, Liu X J 2008 Solid State Comm. 146 7
[27] Prodan E, Lee A, Nordlander P 2002 Chem. Phys. Lett. 360 325
[28] Tam F, Halas N J 2003 Prog. Org. Coat. 47 275
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[1] Krenn J R, Dereux A, Weeber J C, Bourillot E, Lacroute Y, Goudonnet J P 1999 Phys. Rev. Lett. 82 2590
[2] Maier S A, Brongersma M L, Kik P G, Meltzer S, Re-quicha A A G, Atwater H A 2001 Adv. Mater. 13 1501
[3] Quinten M, Leitner A, Krenn J R, Aussenegg F R 1998 Opt. Lett. 23 1331
[4] Maier S A, Kik P G, Atwater H A, Meltzer S, Harel E, Koel B E, Requicha A A G 2003 Nat. Mater. 2 229
[5] Zhang H X, Gu Y, Gong Q H 2008 Chin. Phys. B 17 2567
[6] Kreibig U, Vollmer M 1995 Optical Properties of Metal Clusters (Berlin: Springer)
[7] Kelly K L, Coronado E, Zhao L L, Schatz G C 2003 J. Phys. Chem. B 107 668
[8] Mock J J, Hill R T, Degiron A, Zauscher S, Chilkoti A, Smith D R 2008 Nano Lett. 8 2245
[9] Wei H, Hao F, Huang Y Z, Wang W Z, Nordlander P, Xu H X 2008 Nano Lett. 8 2497
[10] Brewer S H, Anthireya S J, Lappi S E, Drapcho D L, Franzen S 2002 Langmuir 18 4460
[11] Prodan E, Nordlander P 2004 J. Chem. Phys. 120 5444
[12] Westcott S L, Jackson J B, Radloff C, Halas N J 2002 Phys. Rev. B 66 155431
[13] Wu D J, Liu X J 2008 Acta Phys. Sin. 57 5138 (in Chinese) [吴大建、刘晓峻 2008 57 5138]
[14] Zhu J, Bai S W, Zhao J W, Li J J 2009 Appl. Phys. A 97 431
[15] Leveque G, Martin O J F 2006 Opt. Express 14 9971
[16] Limmer S J, Chou T P, Cao G Z 2003 J. Phys. Chem. B 107 13313
[17] Mock J J, Oldenburg S J, Smith D R, Schultz D A, Schultz S 2002 Nano Lett. 2 465
[18] Hendren W R, Murphy A, Evans P, Connor D, Wurtz G A, Zayats A V, Atkinson R, Pollard R J 2008 J. Phys.: Condens. Matter 20 362203
[19] Allain L R, Vo-Dinh T 2002 Anal. Chim. Acta 469 149
[20] Hirsch L R, Jackson J B, Lee A, Halas N J, West J L 2003 Anal. Chem. 75 2377
[21] Sershen S R, West J L 2000 J. Biomed. Mat. Res. 51 293
[22] ONeal D P, Hirsch L R, Halas N J, Paynea J D, West J L 2004 Cancer Lett. 209 171
[23] Oldenburg S J, Hale G D, Radloff C, Halas N J 1999 Appl. Phys. Lett. 75 1063
[24] Prodan E, Radloof C, Halas N J, Nordlander P 2003 Science 302 419
[25] Wang H, Goodrich G P, Tam, Oubre F C, Nordlander P, Halas N J 2005 J.Phys.Chem. B 109 11083
[26] Wu D J, Xu X D, Liu X J 2008 Solid State Comm. 146 7
[27] Prodan E, Lee A, Nordlander P 2002 Chem. Phys. Lett. 360 325
[28] Tam F, Halas N J 2003 Prog. Org. Coat. 47 275
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