Improved switching using Fano resonances in photonic crystal structures.
نویسندگان
چکیده
We present a simple and robust structure for realizing asymmetric Fano transmission characteristics in photonic crystal waveguide-cavity structures. The use of Fano resonances for optical switching is analyzed using temporal coupled mode theory in combination with three-dimensional finite difference time domain simulations taking into account the signal bandwidth. The results suggest a significant energy reduction by employing Fano resonances compared to more well established Lorentzian resonance structures. A specific example of a Kerr nonlinearity shows an order of magnitude energy reduction.
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عنوان ژورنال:
- Optics letters
دوره 38 14 شماره
صفحات -
تاریخ انتشار 2013