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The goal of this example is to demonstrate how FDTD may be used to analyze photonic crystal cavities. We want to determine the resonant frequency, Quality factor, and mode profile of the cavity modes. Once we learn how to find the mode of interest and measure its Q-factor, we will use a particle swarm optimization to find the inner hole radius which provides the maximum Q factor.

 

Note:

The screen shots in this example were created with the Mac version of FDTD.  The graphical user interface looks a slightly different than it does on Windows and Linux.

 

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