| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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Effect of Media on the Electric Field of a Rhombic Nanostructure Array |
ZHU Shao-Li, ZHOU Wei |
| Precision Engineering and Nanotechnology Centre, School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798 |
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| Cite this article: |
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ZHU Shao-Li, ZHOU Wei 2010 Chin. Phys. Lett. 27 067801 |
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Abstract Electric field distribution is an important parameter for nanostructure arrays in nanobiosensing applications. It can influence the sensitivity and the resolution of nanobiosensors. We focus on the effect of media on the electric field distribution of a rhombic silver nanostructure array. The finite-difference time-domain algorithm-based numerical calculation method is used to monitor the electric field distribution of the silver nanostructures when the refractive index of the medium around the nanostructure array is changed. The calculated results show that tuning the refractive index of the medium around silver can have a considerable influence on the electric field distribution in the reflection and transmission directions. This effect can be used to increase the extinction efficiency and to improve the resolution of the spectra for nanobiosensing.
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| Keywords:
78.20.-e
78.20.Ek
78.20.Ci
78.67.Bf
41.20.Jb
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Received: 23 September 2009
Published: 25 May 2010
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| PACS: |
78.20.-e
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(Optical properties of bulk materials and thin films)
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78.20.Ek
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(Optical activity)
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78.20.Ci
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(Optical constants (including refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity))
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78.67.Bf
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(Nanocrystals, nanoparticles, and nanoclusters)
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41.20.Jb
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(Electromagnetic wave propagation; radiowave propagation)
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[1] Neuendorf R, Quinten M and Kreibig U 1996 J. Chem. Phys. 104 6348
[2] Quinten M, Leitner A, Krenn J R and Aussenegg F R 1998 Opt. Lett. 23 1331
[3] Zhao J, Zhang X, Yonzon C, Haes A J and Van Duyne R P 2006 Nanomedicine 1 219
[4] Sherry L J, Jin R, Mirkin C A, Schatz G C and Van Duyne R P 2006 Nano Lett. 6 2060
[5] Haes A J, Zou S, Zhao J, Schatz G C and Van ~Duyne R P 2006 J. Am. Chem. Soc. 128 10905
[6] Willets K A and Van Duyne R P 2007 Ann. Rev. Phys. Chem . 58 267
[7] Schatz G C and Van Duyne R P 2002 Handbook of Vibrational Spectroscopy . Wiley, Chichester
[8] Haes A J and Van Duyne R P 2004 Anal. Bioanal. Chem. 379 920
[9] Draine B T and Flatau P J 1994 J. Opt. Soc. Am. A 11 1491
[10] Simpson J J, Heikes R P and Taflove A 2006 Antennas and Propagation, IEEE Transactions on 54 1734
[11] Grimault A S, Vial A and Lamy de la Chapelle M 2006 Appl. Phys. B 84 111
[12] Zhu S L, Luo X G and Du C L 2007 Chin. Phys. Lett. 24 2902
[13] Zhu S L, Du C L and Fu Y Q 2009 J. Comput. Theor. Nanosci. 6 1034
[14] Zhu S L and Zhou W 2009 Plasmonics 4 303
[15] Zhu S L and Zhou W 2010 J. Comput. Theor. Nanosci. 7 (in press)
[16] Zou S, Janel N and Shatz G C 2004 J. Chem. Phys. 120 10871
[17] Jin E X and Xu X 2006 Appl. Phys. B 84 3
[18] Gai H F, Wang J and Tian Q 2007 J. Nanophoton. 1 013555
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