Abstract
The optical properties of mirrors in two‐dimensional photonic crystal slabs are studied with fully‐vectorial calculations. We compare the properties of different reflectors and show that, in heterostructure mirrors, the penetration length associated with the delay induced by distributed reflection is not correlated to the characteristic damping length of the electromagnetic energy in the mirror. This unexpected result evidences that the usual trade‐off between short damping lengths and large penetration lengths that is classically encountered in distributed Bragg reflectors can be overcome with carefully designed photonic crystal structures.
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