Infrared photoluminescence of erbium-tris(8-hydroxyquinoline) in a distributed feedback cavity |
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Authors: | S. Prezioso L. Ottaviano M. Donarelli L. Palladino A. Reale |
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Affiliation: | a Dipartimento di Fisica, Università dell’Aquila, gc-LNGS INFN, Via Vetoio, 67100 L’Aquila, Italy b Dipartimento di Ingegneria Elettronica, Università di Roma “Tor Vergata”, Viale Politecnico I, 00133 Roma, Italy |
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Abstract: | 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 () one-dimensional grating of polymethylmethacrylate on Si (1 0 0). Structural, morphological and optical properties of the device have been studied. On-grating narrowing of the photoluminescence emission has been observed for the 492 nm grating period in correspondence to the 4f-4f Er band peak (at 1530 nm), indicating the possibility of optical gain for applications in the telecommunications. |
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Keywords: | Organic laser DFB cavity Erbium X-ray interference lithography |
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