Optical: systems and elements – Optical amplifier – Particular active medium
Patent
1994-05-10
1995-08-08
Hellner, Mark
Optical: systems and elements
Optical amplifier
Particular active medium
257 17, 437 15, H01L 3300
Patent
active
054404215
ABSTRACT:
A periodic dielectric structure and method of fabricating same, the structure having a three-dimensional photonic bandgap. The structure includes a plurality of layers, each layer having a stratum of a first material having a first dielectric constant and a plurality of parallel grooves along a first axis lying in the plane of the layer, the grooves including a second material having a second dielectric constant; and a plurality of parallel channels formed through the plurality of layers in a second axis orthogonal to the plane of the layers, the channels being adapted to comprise a third material having a third dielectric constant, thereby resulting in the structure having three-dimensional periodicity. In preferred embodiments, the second and third materials include air.
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Fan Shanhui
Joannopoulos John D.
Meade Robert D.
Villeneuve Pierre R.
Hellner Mark
Massachusetts Institute of Technology
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