The aspect ratio effect on plasmonic properties and biosensing of bonding mode in gold elliptical nanoring arrays

被引：26
作者：
Tsai, Chia-Yang [1 ]
Chang, Kai-Hao
Wu, Che-Yao
Lee, Po-Tsung
机构：
[1] Natl Chiao Tung Univ, Dept Photon, Hsinchu 30010, Taiwan
来源：
OPTICS EXPRESS | 2013年 / 21卷 / 12期
关键词：
OPTICAL-PROPERTIES; RESONANCE SENSORS; NANORODS; FILMS; METAL;
D O I：
10.1364/OE.21.014090
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We investigate both numerically and experimentally the optical properties and biosensing of gold elliptical nanoring (ENR) arrays with various aspect ratios. The gold ENR exhibits a strong localized surface plasmon bonding mode in near-infrared region, whose peak wavelength is red-shifted as increasing the aspect ratio under longitudinal and transverse polarizations. Furthermore, the disk- and hole-like optical properties for longitudinal and transverse modes are observed, which cause different behaviors in field intensity enhancement. For biomolecule sensing, we find that both modes show increased surface sensitivities when enlarging the aspect ratio of gold ENR. (C) 2013 Optical Society of America
引用
收藏
页码：14090 / 14096
页数：7
相关论文
共 25 条
[1]   Optical properties of gold nanorings -: art. no. 057401 [J].
Aizpurua, J ;
Hanarp, P ;
Sutherland, DS ;
Käll, M ;
Bryant, GW ;
de Abajo, FJG .
PHYSICAL REVIEW LETTERS, 2003, 90 (05) :4
[2]   Biosensing with plasmonic nanosensors [J].
Anker, Jeffrey N. ;
Hall, W. Paige ;
Lyandres, Olga ;
Shah, Nilam C. ;
Zhao, Jing ;
Van Duyne, Richard P. .
NATURE MATERIALS, 2008, 7 (06) :442-453
[3]   Surface plasmon sensor based on the enhanced light transmission through arrays of nanoholes in gold films [J].
Brolo, AG ;
Gordon, R ;
Leathem, B ;
Kavanagh, KL .
LANGMUIR, 2004, 20 (12) :4813-4815
[4]   Nanopyramid surface plasmon resonance sensors [J].
Chung, Pei-Yu ;
Lin, Tzung-Hua ;
Schultz, Gregory ;
Batich, Christopher ;
Jiang, Peng .
APPLIED PHYSICS LETTERS, 2010, 96 (26)
[5]   Sub-diffraction-limited optical imaging with a silver superlens [J].
Fang, N ;
Lee, H ;
Sun, C ;
Zhang, X .
SCIENCE, 2005, 308 (5721) :534-537
[6]   Grating-induced plasmon mode in gold nanoparticle arrays -: art. no. 221103 [J].
Félidj, N ;
Laurent, G ;
Aubard, J ;
Lévi, G ;
Hohenau, A ;
Krenn, JR ;
Aussenegg, FR .
JOURNAL OF CHEMICAL PHYSICS, 2005, 123 (22)
[7]   Optical properties of periodic structures of metallic nanodisks [J].
Gantzounis, G. ;
Stefanou, N. ;
Papanikolaou, N. .
PHYSICAL REVIEW B, 2008, 77 (03)
[8]   Electromagnetic fields around silver nanoparticles and dimers [J].
Hao, E ;
Schatz, GC .
JOURNAL OF CHEMICAL PHYSICS, 2004, 120 (01) :357-366
[9]   Excitation and Reemission of Molecules near Realistic Plasmonic Nanostructures [J].
Kern, Andreas M. ;
Martin, Olivier J. F. .
NANO LETTERS, 2011, 11 (02) :482-487
[10]   Local detection of electromagnetic energy transport below the diffraction limit in metal nanoparticle plasmon waveguides [J].
Maier, SA ;
Kik, PG ;
Atwater, HA ;
Meltzer, S ;
Harel, E ;
Koel, BE ;
Requicha, AAG .
NATURE MATERIALS, 2003, 2 (04) :229-232
123