Francesco Todescato, Ilaria Fortunati, Samuele Gardin, Eleonora Garbin, Elisabetta Collini, Renato Bozio, Jacek J. Jasieniak, Gioia Della Giustina, Giovanna Brusatin, Stefano Toffanin and Raffaella Signorini Soft-Lithographed Up-Converted Distributed Feedback Visible Lasers Based on CdSe–CdZnS–ZnS Quantum Dots Advanced Functional Materials 22
By exploiting sol–gel chemistry and the nanoimprinting process, a low-cost up-converted distributed feedback laser is realized. Properly synthesized graded CdSe–CdZnS–ZnS quantum dots are used as active gain material. The laser prototype efficiently works in the visible region, by pumping with one- or two-photon processes. This solution-processed device opens the way to the production of emission-tunable compact lasers.
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