Mr. Daniel Almeida Profile

Daniel Almeida

at Instituto Superior de Engenharia de Lisboa

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Author

Publications (3)

Proceedings Article | 11 March 2024 Presentation + Paper

Amorphous silicon grating couplers based on random and quadratic variation of the refractive index

Paulo Lourenço, Daniel Almeida, João Costa, Alessandro Fantoni, Manuela Vieira, Marco De'Rossi

Proceedings Volume 12880, 128800J (2024) https://doi.org/10.1117/12.3002858

KEYWORDS: Refractive index, Optical gratings, Waveguides, Design, Optical fibers, Diffraction gratings, Amorphous silicon, Silicon, Lithography, Simulations

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Proceedings Article | 4 March 2022 Presentation + Paper

Multi-micron dimensioning of amorphous silicon rib waveguides

João Costa, Manuela Vieira, Alessandro Fantoni, Daniel Almeida

Proceedings Volume 11995, 119950D (2022) https://doi.org/10.1117/12.2610221

KEYWORDS: Waveguides, Amorphous silicon, Light wave propagation, Refractive index, Photonic integrated circuits, Optical fibers, Magnetism, Finite-difference time-domain method, Wave propagation, Tolerancing

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Proceedings Article | 5 March 2021 Presentation + Paper

Performance of an a-Si:H MMI multichannel beam splitter analyzed by computer simulation

Alessandro Fantoni, João Costa, Paulo Lourenço, Miguel Fernandes, Manuela Vieira, Daniel Almeida

Proceedings Volume 11691, 1169106 (2021) https://doi.org/10.1117/12.2583028

KEYWORDS: Brain-machine interfaces, Waveguides, Computer simulations, Beam splitters, Beam analyzers, Beam propagation method, Point-of-care devices, Photomasks, Multimode interference devices, Lithography

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