Faculdade

Department

Joana Isabel Lázaro Almeida

Assistant Researcher
Laboratório 242 - Ala Norte - Edifício I
212 948 576
10536

Academic Degrees

PhD in Physics Engineering (2017, FCT-NOVA)

Research Interests

During my research career in the CEFITEC Laser Technology Group, within the scope of the doctoral scholarship SFRH/BD/90410/2012, I contributed significantly to the main advances in the performance of solar-pumped lasers, some of which were highlighted internationally. . I also actively participated in six projects funded by SFERA (Solar Facilities for European Research Area) I-II Horizon 2020. I am currently a junior researcher in the area of ​​solar laser at FCT-NOVA, under contract CEECIND/03081/2017. Since then, I have actively participated in three more projects funded by SFERA-III and I am, at the moment, as main researcher of an exploratory project EXPL/FIS-OTI/0332/2021, which consists of developing a prototype for the simultaneous pumping of several laser crystals with a broader absorption spectrum in the visible region, using concentrated solar energy. This project will allow the simultaneous emission of several solar laser beams with improved performance and thermal efficiency, which could pave the way for the future application of this renewable technology.

Research Projects

Ref.: EXPL/FIS-OTI/0332/2021

Título: Production of seven-beam Ce:Nd:YAG solar laser in TEM00-mode regim

Data: 2022/01 – 2024/01

Cargo: Main Researcher

Financiadores: Foundation for Science and Technology, I.P.

Ref.: Breakthroughs

Título: New breakthroughs in Ce:Nd:YAG solar laser

Data: 2023/01 – 2023/09

Cargo: Researcher

Financiadores: SFERA-III, Horizon 2020

Representative Publications

Garcia, D.; Liang, D.; Almeida, J.; Catela, M.; Costa, H.; Tibúrcio, B. D.; Guillot, E.; Vistas, C. R. Lowest-threshold solar laser operation under cloudy sky condition. Renewable Energy 210 (2023): 127-133. http://dx.doi.org/10.1016/j.renene.2023.03.124

Liang, D.; Vistas, C. R.; Garcia, D.; Tibúrcio, B. D.; Catela, M.; Costa, H.; Guillot, E.; Almeida, J. Most efficient simultaneous solar laser emissions from three Ce:Nd:YAG rods within a single pump cavity. Solar Energy Materials and Solar Cells 246 (2022). https://doi.org/10.1016/j.solmat.2022.111921 Featured in Laser Focus World

Almeida, J.; Liang, D.; Garcia, D.; Tibúrcio, B. D.; Costa, H.; Catela, M.; Guillot, E.; Vistas, C. R. 40 W continuous wave Ce:Nd:YAG solar laser through a fused silica light guide. Energies 15, 3998 (2022). https://doi.org/10.3390/en15113998

Vistas, C. R.; Liang, D.; Garcia, D.; Catela, M.; Tibúrcio, B. D.; Costa, H.; Guillot, E.; Almeida, J. Uniform and Non-Uniform Pumping Effect on Ce:Nd:YAG Side-Pumped Solar Laser Output Performance. Energies 15 10 (2022). https://doi.org/10.3390/en15103577

Vistas, C. R.; Liang, D.; Almeida, J.; Tibúrcio, B. D.; Garcia, D.; Catela, M.; Costa, H.; Guillot, E. Ce:Nd:YAG side-pumped solar laser.  J. Photonics Energy 11 018001 (2021). 

https://doi.org/10.1117/1.JPE.11.018001 Featured in JPE

Almeida, J.; Liang, D.; Costa, H.; Garcia, D.; Tibúrcio, B. D.; Catela, M.; Vistas, C. R. Seven-rod pumping concept for simultaneous emission of seven TEM00-mode solar laser beams. J. Photonics Energy 10, 038001 (2020).  https://doi.org/10.1117/1.JPE.10.038001 JPE Front Cover

Almeida, J.; Liang, D.; Tibúrcio, B. D.; Garcia, D.; Vistas, C. R. Numerical modeling of a four-rod pumping scheme for improving TEM 00 -mode solar laser performance. J. Photonics Energy 9, [018001] (2019). https://doi.org/10.1117/1.JPE.9.018001 Featured in JPE

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