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24 April 2003 FDTD simulation of hexagonal micropillar cavities
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Proceedings Volume 5116, Smart Sensors, Actuators, and MEMS; (2003)
Event: Microtechnologies for the New Millennium 2003, 2003, Maspalomas, Gran Canaria, Canary Islands, Spain
Hexagonal micropillar (μ-pillar) cavities have been studied using 2-D finite-difference time-domain (FDTD) method. Singlemode resonances have been observed from a 2-μm sized hexagonal μ-pillar cavity that is selectively input-coupled. The simulated resonance wavelengths are consistent with the wavefront-matching condition based on ray-optics. The resonant field distribution has an integer number of field maxima along the cavity rim similar to whispering-gallery modes. Laterally waveguide-coupled hexagonal μ-pillar cavity channel add/drop filters with parallel and non-parallel waveguides have also been designed and simulated. Preliminary simulation of a 20-μm sized hexagonal μ-pillar cavity laterally coupled with 0.4-μm wide parallel waveguides demonstrated an extinction ratio of ≈ 8 dB, a signal/background ratio of ≈ 11 dB and a finesse of ≈ 5.
© (2003) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Frankie Kim Lam Tung, Ning Ma, and Andrew W. Poon "FDTD simulation of hexagonal micropillar cavities", Proc. SPIE 5116, Smart Sensors, Actuators, and MEMS, (24 April 2003);

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