Efficient approach for the calculation of transmission and reflection spectra of photonic crystal waveguide devices

Rei-Shin Chen; Yih-Bin Lin

doi:10.1117/12.892002

23 September 2011 Efficient approach for the calculation of transmission and reflection spectra of photonic crystal waveguide devices

Rei-Shin Chen, Yih-Bin Lin

Author Affiliations +

Proceedings Volume 8102, Nanoengineering: Fabrication, Properties, Optics, and Devices VIII; 810214 (2011) https://doi.org/10.1117/12.892002
Event: SPIE NanoScience + Engineering, 2011, San Diego, California, United States

Abstract

The conventional approach to calculate the transmission and reflection spectra of a photonic crystal (PC) waveguide device by the finite-difference time-domain method is both time and memory demanding. Here we propose a more efficient approach to obtain these spectra. First, the PC-based absorbing boundary condition is employed. Second, the reflected pulse is obtained by subtracting from a reference waveform. For a T-junction in square lattice PC, a computational cell of 40 x 36 lattice constants can be used instead of 180 x 140 lattice constants. The simulation time is reduced to only one tenth of that using the conventional approach.

Citation Download Citation

Rei-Shin Chen and Yih-Bin Lin "Efficient approach for the calculation of transmission and reflection spectra of photonic crystal waveguide devices", Proc. SPIE 8102, Nanoengineering: Fabrication, Properties, Optics, and Devices VIII, 810214 (23 September 2011); https://doi.org/10.1117/12.892002

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