AlGaAs-based vertical-external-cavity surface-emitting laser exceeding 4 W of direct emission power in the 740–790 nm spectral range
Hermann Kahle, Kostiantyn Nechay, Jussi-Pekka Penttinen, Antti Tukiainen, Sanna Ranta, and Mircea Guina Abstract An optically pumped vertical-external-cavity surface-emitting laser (VECSEL) for direct emission in the 740–790 nm wavelength region is reported. The gain...Temperature sensitivity modulation through crystal field engineering in Ga3+ co-doped Gd3Al5-xGaxO12:Cr3+, Nd3+ nanothermometers
K Elzbieciak, A Bednarkiewicz, L Marciniak – Sensors and Actuators B: Chemical, 2018 Abstract Luminescent nanothermometry (LNT) based on temperature-dependent emission intensity of transition metals (TM) is a promising new direction to enhance the performance...Synthesis and luminescence studies of CaF2:Yb:Pr solid solutions powders for photonics
SV Kuznetsov, OA Morozov, VG Gorieva… – Journal of Fluorine Chemistry 2018- Optics Letters, 2018 Abstract Praseodymium and ytterbium-doped calcium fluoride powder samples were prepared by co-precipitation from aqueous solutions followed by annealing at 600 °C....AlGaAs-based vertical-external-cavity surface-emitting laser exceeding 4 W of direct emission power in the 740–790 nm spectral range
H Kahle, K Nechay, JP Penttinen, A Tukiainen, S Ranta… – Optics Letters, 2018 Abstract An optically pumped vertical-external-cavity surface-emitting laser (VECSEL) for direct emission in the 740–790 nm wavelength region is reported. The gain structure is based...Alexandrite spectroscopic and laser characteristic investigation within a 78–400 K temperature range
M Fibrich, J Šulc, D Vyhlídal, H Jelínková, M Čech – Laser Physics, 2017 Abstract We report on the influence of temperature on the spectroscopic and lasing properties of alexandrite () crystal. The fluorescence lifetime, polarization-resolved absorption and...
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