| Presentation | 2010-07-29 Analysis of a waveguide grating using the 3-D LOD-FDTD method Ryoji ANDO, Jun SHIBAYAMA, Junji YAMAUCHI, Hisamatsu NAKANO, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The three-dimensional finite-difference time-domain (FDTD) method based on the locally one-dimensional (LOD) scheme is applied to the analysis of a waveguide grating. First, the formulation is presented, in which dispersion control parameters are introduced to reduce the numerical dispersion error caused by a large time step. Next, as a preliminary calculation, the wavelength response of a waveguide grating is analyzed in a two-dimensional problem. The use of the dispersion control parameter contributes to the accuracy improvement even with a large time step beyond the Courant-Friedrich-Levy limit. In particular, the application of the parameter to only the propagation direction is found to be sufficient, since the forward and backward waves along the waveguide predominate the propagation properties. Finally, a 3-D waveguide grating is analyzed. The use of the dispersion control parameter only in the propagation direction also enables us to employ a large time step for efficient calculations. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Finite-difference time-domain (FDTD) method / locally one-dimensional (LOD) scheme / waveguide grating / numerical dispersion |
| Paper # | MW2010-50,OPE2010-35 |
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| Conference Information | |
| Committee | MW |
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| Conference Date | 2010/7/22(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Microwaves (MW) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Analysis of a waveguide grating using the 3-D LOD-FDTD method |
| Sub Title (in English) | |
| Keyword(1) | Finite-difference time-domain (FDTD) method |
| Keyword(2) | locally one-dimensional (LOD) scheme |
| Keyword(3) | waveguide grating |
| Keyword(4) | numerical dispersion |
| 1st Author's Name | Ryoji ANDO |
| 1st Author's Affiliation | Faculty of Engineering, Hosei University() |
| 2nd Author's Name | Jun SHIBAYAMA |
| 2nd Author's Affiliation | Faculty of Engineering, Hosei University |
| 3rd Author's Name | Junji YAMAUCHI |
| 3rd Author's Affiliation | Faculty of Engineering, Hosei University |
| 4th Author's Name | Hisamatsu NAKANO |
| 4th Author's Affiliation | Faculty of Engineering, Hosei University |
| Date | 2010-07-29 |
| Paper # | MW2010-50,OPE2010-35 |
| Volume (vol) | vol.110 |
| Number (no) | 155 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |