CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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Femtosecond Pulse Propagation in a Symmetric Gap Surface Plasmon Polariton Waveguide |
LU Zhi-Xin 1,2, YU Li1,2**, LIU Bing-Can1,2,3, ZHANG Kai1,2, SONG Gang1,2
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1State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876
2School of Science, Beijing University of Posts and Telecommunications, Beijing 100876
3Department of Fundamental Courses, Academy of Armored Force Engineering, Beijing 100072
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Cite this article: |
LU Zhi-Xin, YU Li, LIU Bing-Can et al 2011 Chin. Phys. Lett. 28 087801 |
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Abstract We investigate the effect of a symmetric gap surface plasmon polariton (SPP) waveguide on ultrashort pulses with a central wavelength of 850 nm and a width of 20 fs using the finite-difference time-domain method. The length of the waveguide is 560 nm. Linear and nonlinear dielectrics are chosen to be the core layers whose thicknesses are set to be 20, 50, 100 and 200 nm, respectively. The results show that for the linear case, strong coupling of the SPP mode can lead to the pulse tailing phenomenon and spectrum compression due to waveguide resonance. For the nonlinear case, the output pulse is broadened and the fluctuation is more complex than the input pulse and can induce the spectrum splitting as well. The smaller the thickness of the core layer is, the more distinct the pulse distortion is, which may be due to the combined effects of dispersion, waveguide resonance and self-phase modulation.
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Keywords:
78.67.-n
78.68.+m
42.25.-p
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Received: 07 March 2011
Published: 28 July 2011
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PACS: |
78.67.-n
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(Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures)
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78.68.+m
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(Optical properties of surfaces)
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42.25.-p
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(Wave optics)
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[1] Maier S A 2007 Plasmonics: Fundamentals and Applications (New York: Springer) chap 7 p 109
[2] Gramotnev D K and Bozhevolnyi S I 2010 Nature Photon 4 83
[3] Rokitski R, Tetz K A and Fainman Y 2005 Phys. Rev. Lett. 95 177401
[4] Samson Z L, Horak P, MacDonald K F and Zheludev N I 2011 Opt. Lett. 36 250
[5] Zayats A V, Smolyaninov I I and Maradudin A A 2005 Phys. Rep. 408 131
[6] Bozhevolnyi S I, Volkov V S, Devaux E and Ebbesen T W 2005 Phys. Rev. Lett. 95 046802
[7] Pile D F P and Gramotnev D K 2004 Opt. Lett. 29 1069
[8] Wang B and Wang G P 2004 Opt. Lett. 29 1992
[9] Liu F, Rao Y, Tang X, Wan R Y, Huang Y D, Zhang W and Peng J D 2007 Appl. Phys. Lett. 90 241120
[10] Wurtz G A, Pollard R and Zayats A V 2006 Phys. Rev. Lett. 97 057402
[11] Palomba S and Novotny L 2008 Phys. Rev. Lett. 101 056802
[12] Yun B F, Hu G H, Ji Y and Cui Y P 2009 J. Opt. Soc. Am. B 26 1924
[13] Stegeman G I 1982 IEEE J. Quant. Electron. 18 1610
[14] Stegeman G I, Seaton C T, Ariyasu J, Wallis R F and Maradudin A A 1985 J. Appl. Phys. 58 2453
[15] Smolyaninov I I and Davis C C 2005 Phys. Rev. B 69 205417
[16] Yin H P, Xu C and Hui P M 2009 Appl. Phys. Lett. 94 221102
[17] Li Y and Zhang X P 2008 Opt. Commun. 281 5009
[18] Li Y and Zhang X P 2009 Opt. Commun 282 4303
[19] Luebbers R J 1992 IEEE T. Antenn. Propag. 40 1297
[20] Min C J, Wang P, Jiao X J, Deng Y and Ming H 2007 Opt. Express 15 9541
[21] Weber M J 2002 Handbook of Optical Materials (Boca Raton: CRC Press) chap 4 p 352
[22] Henari F Z and Dakhel A A 2008 J. Appl. Phys. 104 033110
[23] Buzzi S, Galli M and Agio M 2009 Appl. Phys. Lett. 94 223115
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