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A distributed feedback (DFB) waveguide cavity with erbium-tris(8-hydroxyquinoline) has been fabricated by X-ray interference lithography in a laboratory-scale apparatus. The DFB cavity consists of a large area (∼8mm2) one-dimensional grating of polymethylmethacrylate on Si (100). Structural, morphological and optical properties of the device have been studied. On-grating narrowing of the photoluminescence...
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