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Directional Nanoslit-Bump Coupler for Surface Plasmon Polaritons |
ZHANG Yong-Liang;ZHAO De-Yin;ZHOU Chuan-Hong;JIANG Xun-Ya |
| State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050 |
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| Cite this article: |
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ZHANG Yong-Liang, ZHAO De-Yin, ZHOU Chuan-Hong et al 2008 Chin. Phys. Lett. 25 168-171 |
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Abstract We investigate a p-polarized plane wave transmitted through a metallic slit--bump nanostructure using the finite difference time domain simulation. It is found that narrow bumps with suitable separation can diffract surface plasmons into highly directional collimating beams. The number and directionality of the beams can be controlled by adjusting the geometry parameters of the nanostructure. The structure with optimized parameters may be interesting for practical applications as directional nanoslit SPP-light coupler in integrated photonic devices.
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| Keywords:
42.82.Et
41.85.Ct
42.25.Fx
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Received: 28 June 2007
Published: 27 December 2007
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| PACS: |
42.82.Et
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(Waveguides, couplers, and arrays)
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41.85.Ct
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(Particle beam shaping, beam splitting)
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42.25.Fx
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(Diffraction and scattering)
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[1] Agrawal V M and Mills D L 1982 Surface Polaritons(Amsterdam: North-Holland)
[2] Ebbesen T W, Lezec H J, Ghaemi H F, Thio T and Wolff P A1998 Nature 391 667
[3] Lezec H J, Degiron A, Deraux E, Linke R A, Martin-MorenoL, Garcia-Vidal F J and Ebbesen T W 2002 Science 297820
[4]Martn-Moreno L, Garca-Vidal F J, Lezec H J, Degiron A, andEbbesen T W 2003 Phys. Rev. Lett. 90 167401
[5]Sun Z and Kim H K 2004 Appl. Phys. Lett. 85642
[6]Sun Z 2006 Appl. Phys. Lett. 89 261119
[7]Kramper P, Agio M, Soukoulis C M, Birner A, Muler F,Wehrspohn R B, Gosele U and Sandoghdar V 2004 Phys. Rev.Lett. 92 113903
[8]Palik E D 1985 Handbook of Optical Constants ofSolids (New York: Academic) p 350
[9] Sanchez-Gil J A 1998 Appl. Phys. Lett. 733509
[10] Sanchez-Gil J A and Maradudin A A 1999 Phy. Rev. B 60 83597 |
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