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About

Paulo Marques was born in Portugal in 1968. He received a degree in Physics (1991), a MSc in Optoelectronics and Lasers (1995) and a PhD in Physics (2000), all from the University of Porto, Portugal. From Nov. 1999 he was appointed as Teaching Assistant in University of Trás-os-Montes e Alto Douro. In 2001, he joined the Faculty of Science from University of Porto as an Assistant Professor.

Since July 2000 he develops research activity in the Optoelectronics and Electronics Systems Unit (UOSE) of INESC PORTO, being responsible for several National and European research contracts. His current research interests include integrated optical sensors, laser direct writing techniques for integrated optics and microfabrication in general, microfluidics, Bragg gratings, optical photosensitivity. More recently has been involved in laser processing with ultrafast lase sources. Has published 4 world patents (patent family of 32) and published more than 100 scientific papers in international magazines and conferences and three book chapters.

Since October 2009 is the coordinator of the Center of Applied Photonics of INESCTEC (former Optoelectronics and Electronics Systems Unit). From May 2013 is also the director of the Micro and Nanofabrication Center of Porto University (CEMUP MNTEC).

Interest
Topics
Details

Details

  • Nationality

    Portugal
  • Centre

    Applied Photonics
  • Contacts

    +351220402301
    paulo.v.marques@inesctec.pt
009
Publications

2020

Magnetic field sensors in fused silica fabricated by femtosecond laser micromachining

Authors
Maia, JM; Amorim, VA; Viveiros, D; Marques, PVS;

Publication
Journal of Physics: Photonics

Abstract

2019

Loss Mechanisms of Optical Waveguides Inscribed in Fused Silica by Femtosecond Laser Direct Writing

Authors
Amorim, VA; Maia, JM; Viveiros, D; Marques, PVS;

Publication
Journal of Lightwave Technology

Abstract

2019

High Performance Titanium oxide coated D-shaped Optical Fiber Plasmonic Sensor

Authors
Gangwar, RK; Amorim, VA; Marques, PVS;

Publication
IEEE Sensors Journal

Abstract

2019

Advances in Fs-Laser Micromachining Towards the Development of Optofluidic Devices

Authors
Maia, JM; Amorim, VA; Alexandre, D; Marques, PVS;

Publication
Springer Series in Optical Sciences

Abstract
In this chapter the developments made in femtosecond laser micromachining for applications in the fields of optofluidics and lab-on-a-chip devices are reviewed. This technology can be applied to a wide range of materials (glasses, crystals, polymers) and relies on a non-linear absorption process that leads to a permanent alteration of the material structure. This modification can induce, for instance, a smooth variation of the refractive index or generate etching selectivity, which can be used to form integrated optical circuits and microfluidic systems, respectively. Unlike conventional techniques, fs-laser micromachining offers a way to produce high-resolution three-dimensional components and integrate them in a monolithic approach. Recent advances made in two-photon polymerization have also enabled combination of polymeric structures with microfluidic channels, which can provide additional functionalities, such as fluid transport control. In particular, here it is emphasised the integration of microfluidic systems with optical layers and polymeric structures for the fabrication of miniaturized hybrid devices for chemical synthesis and biosensing. © 2019, Springer Nature Switzerland AG.

2019

Spectral characteristics of optical waveguides fabricated in glass by femtosecond laser direct writing

Authors
Amorim, VA; Viveiros, D; Maia, JM; Marques, PVS;

Publication
Proceedings of SPIE - The International Society for Optical Engineering

Abstract
The fabrication of optical waveguides with femtosecond laser direct writing is reported in two materials, Suprasil1 and Eagle2000. The influence of typical fabrication parameters, such as pulse energy and scan velocity, on the waveguide's spectral characteristics is explored from 500 to 1700 nm. Tests conducted in Suprasil1 evidence a strong presence of Rayleigh scattering, hindering the production of low-loss waveguides at short wavelengths. On the other hand, optical waveguides fabricated in Eagle2000 exhibited lower insertion losses at short wavelengths, enabling the fabrication of low-loss broadband optical waveguides with a two order of magnitude higher scan velocity when compared with Suprasil1. © 2019 SPIE.

Supervised
thesis

2017

Fabrication of opticals Ensing devices by 3D laser  micromachining

Author
Carlos Duarte Rodrigues Viveiros

Institution
UP-FCUP

2017

High Power Fiber Lasers and Amplifiems -Power Scaling and Performance limitations

Author
Miguel Alexandre Ramos de Melo

Institution
UP-FCUP

2016

FemtoEtch – Femtosecond Laser Micromachining and Applications in Microfluidics and Optofluidics

Author
João Miguel Mendes da Silva Maia

Institution
UP-FCUP

2016

Determinação das condições ótimas de fabricação de componentes óticos revestidos fabricados a partir de vidros fluoro-fosfatados

Author
Tomás Freire Barbas de Albuquerque

Institution
UP-FCUP

2016

Fabrication of Integrated Optical Devices in Fused Silica by Femtosecond Laser Direct Writing

Author
Vítor Alexandre Oliveira Amorim

Institution
UP-FCUP