Frequency-Dependent Formulations of a Drude-Critical Points Model for Explicit and Implicit FDTD Methods Using the Trapezoidal RC Technique
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概要
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A Drude-critical points (D-CP) model for considering metal dispersion is newly incorporated into the frequency-dependent FDTD method using the simple trapezoidal recursive convolution (TRC) technique. Numerical accuracy is investigated through the analysis of pulse propagation in a metal (aluminum) cladding waveguide. The TRC technique with a single convolution integral is found to provide higher accuracy, when compared with the recursive convolution counterpart. The methodology is also extended to the unconditionally stable FDTD based on the locally one-dimensional scheme for efficient frequency-dependent calculations.
著者
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Ando Ryoji
Faculty Of Agriculture Iwate University
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Yamauchi Junji
Faculty Of Bioscience And Biotechnology Tokyo Institute Of Technology
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Shibayama Jun
Faculty Of Engineering Hosei University
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Nakano Hisamatsu
Faculty Of Engineering Hosei University
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Watanabe Keisuke
Faculty Of Pharmaceutical Sciences Kumamoto University
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ANDO Ryoji
Faculty of Science and Engineering, Hosei University
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WATANABE Keisuke
Faculty of Science and Engineering, Hosei University
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- Frequency-Dependent Formulations of a Drude-Critical Points Model for Explicit and Implicit FDTD Methods Using the Trapezoidal RC Technique