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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Petersen, Paul Michael
in Cooperation with on an Cooperation-Score of 37%
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Publications (8/8 displayed)
- 2022A Tunable Hyperspectral Imager for Detection and Quantification of Marine Biofouling on Coated Surfacescitations
- 2020Micro-integrated high-power narrow-linewidth external-cavity tapered diode laser at 808 nmcitations
- 2017Effective optimization of surface passivation on porous silicon carbide using atomic layer deposited Al2O3citations
- 2017Effective optimization of surface passivation on porous silicon carbide using atomic layer deposited Al2O3citations
- 2017Investigation of saturation effects in ceramic phosphors for laser lightingcitations
- 2016Surface passivation of nano-textured fluorescent SiC by atomic layer deposited TiO2citations
- 2016Surface passivation of nano-textured fluorescent SiC by atomic layer deposited TiO2citations
- 2016Investigation of the effect of UV-LED exposure conditions on the production of vitamin D in pig skincitations
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article
Investigation of saturation effects in ceramic phosphors for laser lighting
Abstract
We report observation of saturation effects in a Ce:LuAG and Eu-doped nitride ceramic phosphor for conversion of blue laser light for white light generation. The luminous flux from the phosphors material increases linearly with the input power until saturation effects limit the conversion. It is shown, that the temperature of the phosphor layer influences the saturation power level and the conversion efficiency. It is also shown that the correlated color temperature (CCT), phosphor conversion efficiency and color rendering index (CRI) are dependent both on incident power and spot size diameter of the illumination. A phosphor conversion efficiency up to 140.8 lm/W with CRI of 89.4 was achieved. The saturation in a ceramic phosphor, when illuminated by high intensity laser diodes, is estimated to play the main role in limiting the available luminance from laser based lighting systems.