UIDB/00068/2020
Dawei Liang
Head of Research
242 - Ed. I
(+351) 21 294 85 76 10528
dl@fct.unl.pt
Research Areas
The conversion of solar radiation into laser radiation by solar pumping is of increasing importance because free broadband sunlight can be converted into amazing laser light, which is a source of narrowband, collimated radiations with extremely high brightness and intensity. Our solar laser laboratory at New University of Lisbon was established over a decade ago, embarking on a challenging journey to significantly improve both solar-to-laser conversion efficiency and the output beam quality of solar-pumped lasers. Thanks to a huge amount of painstaking research efforts, we have attained some international recognitions and highlights.
Main publications
Liang, D.; Almeida, J.; Tibúrcio, B. D.; Catela, M.; Garcia, D.; Costa, H.; Vistas, C. R. Seven-Rod Pumping Approach for the Most Efficient Production of TEM00 Mode Solar Laser Power by a Fresnel Lens. J. Sol. Energy Eng. Trans. ASME 143, [061004] (2021). https://doi.org/10.1115/1.4051223
Liang, D.; Almeida, J.; Garcia, D.; Tibúrcio, B. D.; Guillot, E.; Vistas, C. R. Simultaneous solar laser emissions from three Nd:YAG rods within a single pump cavity. Sol. Energy 199, 192-197 (2020).
https://doi.org/10.1016/j.solener.2020.02.027
Liang, D.; Vistas, C. R.; Almeida, J.; Tibúrcio, B. D.; Garcia, D. Side-pumped continuous-wave Nd:YAG solar laser with 5.4% slope efficiency. Sol. Energy Mater. Sol. Cells 192, 147-153 (2019).
https://doi.org/10.1016/j.solmat.2018.12.029
Liang, D.; Vistas, C. R.; Tibúrcio, B. D.; Almeida, J. Solar-pumped Cr:Nd:YAG ceramic laser with 6.7% slope efficiency. Sol. Energy Mater. Sol. Cells 185, 75-79 (2018). https://doi.org/10.1016/j.solmat.2018.05.020
Liang, D.; Almeida, J.; Vistas, C. R.; Guillot, E. Solar-pumped Nd:YAG laser with 31.5 W/m2 multimode and 7.9 W/m2 TEM00-mode collection efficiencies. Sol. Energy Mater. Sol. Cells 159, 345-349 (2017).
https://doi.org/10.1016/j.solmat.2016.09.048 Featured in Laser Focus World
Liang, D.; Almeida, J.; Guillot, E. Side-pumped continuous-wave Cr:Nd:YAG ceramic solar laser. Appl. Phys. B: Lasers Opt. 111, 305-311 (2013).
https://doi.org/10.1007/s00340-013-5334-4
Liang, D.; Almeida, J. Solar-pumped TEM00 mode Nd:Yag laser. Opt. Express 21, 25107-25112 (2013). https://doi.org/10.1364/OE.21.025107 Featured in Laser Focus World
More information in:
ORCID: 0000-0002-4406-4108
Scopus Author ID: 7202206600
