Presentation 2009-01-29
Analysis of plasmonic waveguide devices using the frequency-dependent LOD-FDTD method based on the trapezoidal recursive convolution technique
Jun SHIBAYAMA, Akifumi NOMURA, Ryoji ANDO, Junji YAMAUCHI, Hisamatsu NAKANO,
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Abstract(in English) The implicit finite-difference time-domain (FDTD) method based on the locally one-dimensional (LOD) scheme is extended to a frequency-dependent version with the help of a trapezoidal recursive convolution (TRC) technique and the extended method is applied to the analysis of plasmonic waveguide devices. After formulating the TRC-LOD-FDTD, we analyze a metal cladding optical waveguide expressed in the Drude model. It is revealed that the TRC technique requiring a single convolution integral yields the numerical accuracy comparable to that of the PLRC technique with two convolution integrals. Next, we investigate the sidelobe suppression in a plasmon waveguide grating (PWG). It is shown that the use of an apodized and a chirped grating leads to a significant reduction in the sidelobes. Finally, we analyze a plasmonic microcavity in which a defect section is introduced into the PWG. By changing the width of the air core region, we obtain tunable characteristics of the resonance wavelength.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Finite-difference time-domain (FDTD) method / locally one-dimensional (LOD) scheme / trapezoidal recursive convolution (TRC) technique / plasmon waveguide grating (PWG) / sidelobe suppression / microcavity
Paper # PN2008-58,OPE2008-161,LQE2008-158
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Conference Information
Committee LQE
Conference Date 2009/1/22(1days)
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Registration To Lasers and Quantum Electronics (LQE)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Analysis of plasmonic waveguide devices using the frequency-dependent LOD-FDTD method based on the trapezoidal recursive convolution technique
Sub Title (in English)
Keyword(1) Finite-difference time-domain (FDTD) method
Keyword(2) locally one-dimensional (LOD) scheme
Keyword(3) trapezoidal recursive convolution (TRC) technique
Keyword(4) plasmon waveguide grating (PWG)
Keyword(5) sidelobe suppression
Keyword(6) microcavity
1st Author's Name Jun SHIBAYAMA
1st Author's Affiliation Faculty of Engineering, Hosei University()
2nd Author's Name Akifumi NOMURA
2nd Author's Affiliation Faculty of Engineering, Hosei University
3rd Author's Name Ryoji ANDO
3rd Author's Affiliation Faculty of Engineering, Hosei University
4th Author's Name Junji YAMAUCHI
4th Author's Affiliation Faculty of Engineering, Hosei University
5th Author's Name Hisamatsu NAKANO
5th Author's Affiliation Faculty of Engineering, Hosei University
Date 2009-01-29
Paper # PN2008-58,OPE2008-161,LQE2008-158
Volume (vol) vol.108
Number (no) 419
Page pp.pp.-
#Pages 6
Date of Issue