Joan Josep Carvajal

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We report the formation of two-dimensional disordered arrays of poly(methyl)methacrylate (PMMA) microcolumns with embedded single size distribution of Lu0.990Er0.520Yb0.490 nanocrystals, (Er,Yb):Lu2O3, using a disordered porous silicon template. The cubic (Er,Yb):Lu2O3 nanocrystals, which crystallize into the cubic system with Ia3¯ space group, were(More)
Waveguide lasing of a Tm:KY(WO<inf>4</inf>)<inf>2</inf> epitaxial layer in a monolithic cavity is reported. The laser was operated at 2 &#x03BC;m in the Q-switched mode using Cr<sup>2&#x002B;</sup>:ZnSe as saturable absorber and in the continuous-wave regime.
We present the first cw Ho:KLuW laser operating at room temperature. It is resonantly pumped by a diode-pumped Tm:KLuW laser and emits at 2060 nm in E//N<inf>m</inf> polarization with a slope efficiency of 22%.
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