Dr. Vilson Rosa Almeida Profile

Dr. Vilson Rosa Almeida

Senior Visiting Professor

SPIE Involvement:

Author

SPIE Journal Paper | 16 August 2022

Archimedean spiral waveguide as efficient all-optical phase modulator for space laser beam pointing

Alessandro Santos, Vilson Almeida, Willer Santos

OE, Vol. 61, Issue 08, 087102, (August 2022) https://doi.org/10.1117/12.10.1117/1.OE.61.8.087102

KEYWORDS: Silicon, Waveguides, Modulators, Phased array optics, Absorption, Phase shift keying, Computer simulations, Phase shifts, Wave propagation, Thermography

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SPIE Journal Paper | 27 October 2016

Optical forces in a silicon nano-optomechanical device based on a cross-slot waveguide

Janderson Rocha Rodrigues, Vilson Rosa Almeida

JNP, Vol. 10, Issue 04, 046009, (October 2016) https://doi.org/10.1117/12.10.1117/1.JNP.10.046009

KEYWORDS: Waveguides, Polarization, Silicon, Refractive index, Dielectric polarization, Active optics, Superposition, Magnetism, Control systems, Photonic devices

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Proceedings Article | 13 May 2016 Paper

Optical forces in a silicon nano-optomechanical device based on a cross-slot waveguide

Janderson Rodrigues, Vilson Almeida

Proceedings Volume 9891, 98910K (2016) https://doi.org/10.1117/12.2227175

KEYWORDS: Waveguides, Silicon, Refractive index, Nano opto mechanical systems, Polarization, Active optics, Nanophotonics, Waveguide sensors, Sensors, Finite element methods, Control systems, Superposition, Photonic devices, Nanosensors

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Proceedings Article | 1 May 2014 Paper

Polymer and composite polymer slot waveguides

Marianne Hiltunen, William Fegadolli, Hugo L. Lira, Pasi Vahimaa, Jussi Hiltunen, Sanna Aikio, Vilson Almeida, Pentti Karioja

Proceedings Volume 9133, 91331G (2014) https://doi.org/10.1117/12.2052251

KEYWORDS: Waveguides, Polymers, Silicon, Polarization, Resonators, Interferometers, Refractive index, Polymer multimode waveguides, Glucose, Sensors

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Proceedings Article | 20 May 2013 Paper

Fiber Bragg grating based angular accelerometer: a first approach

Matheus Carvalho, Rogério Cazo, Vilson Almeida, Carmem Barbosa

Proceedings Volume 8794, 87940A (2013) https://doi.org/10.1117/12.2026038

KEYWORDS: Fiber Bragg gratings, Photodetectors, Optical fibers, Fiber optic gyroscopes, Electronic circuits, Surface plasmons, Fiber optics, Gyroscopes, Navigation systems, Seismic sensors

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Proceedings Article | 9 September 2010 Paper

Dynamic response of optical fiber Bragg grating temperature sensors

Gleison da Silva, Josemir Santos, Vilson de Almeida, Rogério Caso

Proceedings Volume 7653, 76531A (2010) https://doi.org/10.1117/12.866469

KEYWORDS: Fiber Bragg gratings, Optical fibers, Temperature sensors, Sensors, Current controlled current source, Optical fabrication, Photonics, Environmental sensing, Temperature metrology

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Proceedings Article | 18 February 2009 Paper

On-chip silicon photonic wavelength control of laser source

Xuan Wang, Tao Liu, Vilson Almeida, Roberto Panepucci

Proceedings Volume 7220, 722014 (2009) https://doi.org/10.1117/12.809820

KEYWORDS: Optical filters, Microrings, Silicon, Polarization, Silicon photonics, Waveguides, Resonators, Switches, Tunable filters, Absorption

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Proceedings Article | 25 October 2004 Paper

High-confinement photonic structures for light propagation in the visible range

Amy Turner, Vilson Almeida, Michal Lipson

Proceedings Volume 5597, (2004) https://doi.org/10.1117/12.571708

KEYWORDS: Waveguides, Resonators, Light wave propagation, Geometrical optics, Integrated photonics, Scattering, Polarization, Plasma enhanced chemical vapor deposition, Telecommunications, Microrings

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Proceedings Article | 25 October 2004 Paper

Light amplification on silicon using highly confined photonic structures

Qianfan Xu, Vilson Almeida, Michal Lipson

Proceedings Volume 5597, (2004) https://doi.org/10.1117/12.571685

KEYWORDS: Waveguides, Raman spectroscopy, Silicon, Absorption, Raman scattering, Switches, Sensors, Solids, Picosecond phenomena, Ultrafast phenomena

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Proceedings Article | 25 October 2004 Paper

Slab polymer photonic crystals

Roberto Panepucci, Bryan Kim, Vilson Almeida, Matthew Jones

Proceedings Volume 5597, (2004) https://doi.org/10.1117/12.571406

KEYWORDS: Photonic crystals, Polymers, Waveguides, Silicon, Etching, Polymethylmethacrylate, Refraction, Cladding, Oxides, Photonic devices

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Proceedings Article | 14 October 2004 Paper

Optically controlled photonic crystal nanocavity in silicon

Stefan Preble, Vilson Almeida, Michal Lipson

Proceedings Volume 5511, (2004) https://doi.org/10.1117/12.561635

KEYWORDS: Silicon, Refractive index, Modulation, Photonic crystals, Absorption, Waveguides, Switching, Dispersion, Plasma, Ultrafast phenomena

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Proceedings Article | 9 November 2000 Paper

Rotation rate measurement using an opto-electronic oscillator (OEO) based on Sagnac interferometer

V. R. de Almeida

Proceedings Volume 4185, 41854J (2000) https://doi.org/10.1117/12.2302306

KEYWORDS: Sagnac interferometers, Oscillators, Sensors, Optoelectronics, Modulators, Feedback loops, Picosecond phenomena, Photodetectors, Phase shifts, Fiber optics

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Showing 5 of 12 publications

Conference Committee Involvement (3)

Silicon Photonics and Photonic Integrated Circuits

3 April 2016 | Brussels, Belgium

Silicon Photonics and Photonic Integrated Circuits

14 April 2014 | Brussels, Belgium

Silicon Photonics and Photonic Integrated Circuits

16 April 2012 | Brussels, Belgium

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