Abstract
Recently, it has become possible to microfabricate high reflectivity mirrors by creating two- and three-dimensional periodic structures. These periodic crystals can be designed to open up frequency bands within which the propagation of electromagnetic waves is forbidden irrespective of the propagation direction in space and define photonic bandgaps. When combined with high index contrast slabs in which light can be efficiently guided, microfabricated two-dimensional photonic bandgap mirrors provide us with the geometries needed to confine and concentrate light into extremely small volumes and to obtain very high field intensities. We show the use of these fabricated optical mirrors in functional nonlinear optical devices, such as lasers, modulators, and waveguides.
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