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Presentation

Presentation

At CAP we perform R&D in applied photonics, principally focusing on optical fibre technology.

We are oriented towards applied research and development in optical fibre sources, optical fibre communication, optical fibre sensors and microfabrication (thin films and integrated optics).

Our group is always looking for opportunities for technology transfer to industrial companies using its specific competencies in optoelectronics and systems integration.

Latest News
Networked Intelligent Systems

INESC TEC researchers set two world records in optical sensing

During the months of October and November, Paulo Robalinho and André Gomes, researchers at INESC TEC’s Centre for Applied Photonics (CAP), published two articles in scientific journals, for the dissemination of two world records obtained in the optical deformation sensing and refractive index, using the Vernier effect.

10th November 2020

Networked Intelligent Systems

INESC TEC researcher receives award at the 22nd National Physics Conference

The work presented by Diana Capela, researcher at INESC TEC’s Centre for Applied Photonics (CAP), was awarded at PHYSICS 2020 – 22nd National Physics Conference and 30th Iberian Meeting for the Teaching of Physics, which took place between September 2 and 5, at the Institute of Education of the University of Lisbon. The participants attended the event in person and via Zoom.

22nd September 2020

Networked Intelligent Systems

INESC TEC spin-off acknowledged as one of the most promising in the world in digital health

ILoF – Intelligent on Fiber, a spin-off from the University of Porto, established in INESC TEC and currently incubated at the Faculty of Medicine (FMUP), is among the 150 most promising start-ups in the field of digital health worldwide, according to a list provided by CB Insights, a North American company specialised in business analysis.

31st August 2020

Project resorts to photonics and AI to predict the evolution of COVID-19 infection

A group of researchers from INESC TEC's Centre for Applied Photonics (CAP), Centre for Biomedical Engineering Research (C-BER) and Centre for Innovation Technology and Entrepreneurship (CITE), together with the spin-off iLoF, is studying the implementation of a quick and low-cost tool based on personalised medicine, in order to predict the evolution of  Covid-19 viral infection in patients.

11th May 2020

FCT approved five INESC TEC projects to fight against COVID-19

The Foundation for Science and Technology (FCT) approved five INESC TEC projects under the "RESEARCH FOR COVID-19" financing line, with the Institute as the applicant entity in three of said projects - and a total of €85M funding. These initiatives will focus on the development of solutions to fight against the COVID-19 pandemic.

27th April 2020

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Interest Topics
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Featured Projects

GREENPEG

Análise de composição elementar pela técnica LIBS

2020-2021

LightBrain

LightBrain - a light speed neuromorphic chip with quantum fluids of light

2020-2022

SMARTFARM40

Soluções inteligentes para uma agricultura sustentável, preditiva e autónoma

2020-2023

inSITE

inSITE. Insitu ore grading system using LIBS in harsh environments

2020-2022

FOOD4U

Real-time monitoring of fresh food quality with optical sensors

2019-2020

SmartEcotec

Viabilidade de Implementação de Sistema de Inteligência Artificial para o Diagnóstico, Previsão e Controlo Multivariado de Unidades de Tratamento de Lixiviados

2019-2020

WiPTherm

Innovative WIreless Power devices Using micro-Thermoelectric Generators arrays for Nanosatellites

2019-2022

OpTweezers

Consultoria, aconselhamento técnico e acesso a infraestrutura de fabrico e teste de pinças óticas

2019-2020

ESAPlastics

DE-RISK ASSESSMENT: SPECTROMETER FOR MARINE LITTER

2019-2021

EFAR

Cabeças sensoras para corrente contínua

2019-2019

FlexOPlan

Planeamento Operacional da Potência Ativa e Reativa na Interface entre TSO e DSO

2019-2021

LED

Consultoria especializada em sistemas óticos

2018-2020

SENVIB

Sensor ótico de vibração para aplicações em transformadores

2018-2018

MetBots

Metabolomic robots with self-learning artificial intelligence for precision agriculture

2018-2021

GreenNanoSensing

Quantum nanoSensing for renewable energy and environmental management

2018-2021

ENDOR

Endoscope based on new optical fibre technology for Raman spectroscopy

2018-2021

SolSensors

Development of advanced fibre optic sensors to monitor the durability of concrete and reinforced concrete structures

2018-2021

SAFEWATER

On chip whispering gallery mode optical microcavities for emerging microcontaminant determination in waters

2018-2021

FLAPSYS

Fiber laser plasma spectroscopy system for real time element analysis

2018-2021

MINDOG

Adaptação de 3 sensores de H2S para incorporação em sistemas de deteção de flatulência canina

2017-2019

TEC4Sea

Modular Platform for Research, Test and Validation of Technologies supporting a Sustainable Blue Economy

2017-2021

INFANTE

Sistema de apresentação da "Maquete do Porto Mediaval", do Museu Casa do Infante

2017-2017

AGRINUPES

Integrated monitoring and control of water, nutrients and plant protection products towards a sustainable agricultural sector

2017-2020

CORAL-SENSORS

CORAL – Sustainable Ocean Exploitation: Tools and Sensors

2016-2018

CORAL-TOOLS

CORAL – Sustainable Ocean Exploitation: Tools and Sensors

2016-2018

Femto3D

Fabricação tridimensional de dispositivos ópticos integrados por escrita directa com laser femtosegundo

2016-2017

TECCON2

Acordo de Cooperação em P&D entre INESC P&D Brasil e INESCTEC para participação no projeto TECCON2

2016-2020

STRONGMAR-CRAS

STRengthening MARritime Technology Research Center

2016-2018

MarineEye

MarinEye - A prototype for multitrophic oceanic monitoring

2015-2017

NanoStima-RL1

NanoSTIMA - Macro-to-Nano Human Sensing Technologies

2015-2019

VAMOS

Viable Alternative Mine Operating System

2015-2019

EYEFRY

Cooking oils degradation assessment system

2014-2015

Re-Learning

Human motor re-learning by sensor information fusion

2014-2015

GOPA

Environmental processes management and optimisation

2013-2014

Spin_Fonao

Magnetic-induced ferroelectricity unravelled through spin-phonon coupling

2013-2015

InCell

Optical fibre tweezers for single cell manipulation and analysis

2013-2014

SNIFFER

Sensor devices network for food supply chain security

2013-2016

ThermaMonitor

System based on optical fibre sensors to monitor temperature in electrical machines

2013-2014

Sensing

Network Sensing for Critical Systems Monitoring

2013-2015

SmartGrids

Smart Grids

2013-2015

Cyclops

Single-Pixel Imaging Lidar based on Compressive Sensing

2013-2014

Cooperation

Cooperation and Perception for Augmented Autonomy

2013-2015

Ecoal-MGT

Ecological Management of Coal Waste Piles

2012-2015

IORT

The effect of shielding on dose distributions in intra-operative electron radiotherapy: a Monte Carlo simulation study

2012-2015

SPR

Plasmonics Based Fibre Optic Sensing with Enhanced Performance

2012-2014

WineBioCode

Biosensor Development for Wine Traceability in the Douro Region

2012-2015

E-Coli

Lab-on-a-chip: E.coli rapid detection

2012-2012

NanoWires

Optical Fibre NanoWires

2012-2012

FLUOROCT

Dose distribution mapping and Monte Carlo simulations in CT-fluoroscopy

2011-2014

Wood

Numerical and experimental study of cohesive laws in bonded wood joints

2011-2014

AQUAMONITOR

Optical fiber sensors for water quality monitoring applied to the determination of dissolved carbon dioxide in aquaculture

2011-2013

Nanovalor

Pole of Competitiveness in Nanotechnology for the enhancement of R&D potential in the Euroregion Galicia-Northern Portugal

2011-2014

MicroNanoCarolina

Expanding activity in optics and optoelectronics: micro and nonofabrication technologies

2010-2012

Multiferroicos

Multiferroic and Magnetoelectric materials for spintronics: obstacles and interfaces

2010-2013

FIBDOSE

Fibre dosimeters for in vitro and in vivo dosimetry in External Radiotherapy and Brachytherapy

2010-2013

SmartCoat

Optical fibre sensors embedded in composite materials to monitor physical parameters

2010-2012

TECCON

Optical fibre sensors to supervise, control and protect electric power systems

2010-2013

SensEFil

Monitoring filament wound vessels using optical sensors embedded in composite reinforcement

2010-2012

MCP

Antibacterial and osteogenic behaviour of Modified Calcium Phosphates (MCP): in vitro and in vivo evaluation

2010-2013

Hybrid

Hybrid electro-optical microfluidic device for single cell analysis

2010-2013

WaveTune

Monitoring systems based on optical fibre technology

2010-2011

SensingVed

Intelligent monitoring system based on sensor networks

2010-2010

Microphyte

Sensors for a new and more competitive bioprocess for the production of hydrogen

2010-2013

SensKanoe

Sensing systems applied to canoes

2009-2012

Mobiles

Sustainable electric mobility - Solutions for the logistics associated with electric vehicle battery charging

2009-2012

TunLas

Optical fibre tunable lasers

2009-2017

SkateMus

Music generation from skater movements

2009-2009

Memimetria

System to measure the thickness of materials using interferometric imaging setups

2008-2010

Biomotion

Perception of biological motion - integrating psychophysics, neurophysiology and computational modeling

2008-2012

Bioswim

Body Interface System based on Wearable Integrated Monitoring

2008-2011

Endurance0

Optical fibre Bragg sensors to monitor structures in Civil Engineering

2008-2010

Nanocrystalline

Glass Ceramics with Non Linear Optical Properties

2008-2011

AmdraphydII

Advanced Monitoring and Diagnosis of the Physical Dynamics of the Estuary of Aveiro

2008-2009

Oreo2

Self-patternable organic/inorganic hybrids for low cost integrated optics devices

2008-2010

SenRONS

Optical fibre sensors to determine reactive oxygen and nitric oxide in biological systems

2008-2011

Motion

Monitoring and compensaTion of Impairments in Optical Networks

2007-2010

Welding

Optical fibre Bragg sensors for friction stir welding (FSW) and laser beam welding (LBW) modeling

2007-2009

Biopelvic

Study of Female Pelvic Floor Disorders

2007-2010

Optic-Algae

Hybrid photobioreactors containing microstructured optical fibres for operations with microalgae

2007-2010

SmartBio

HIP Femoral Prosthesis for in vivo loosening data acqusition

2007-2010

NextGenPCF

Next Generation Photonic Crystal Fibres

2006-2009

Team
002

Laboratories

Laboratory of Microfabrication

Imaging Laboratory

Publications

CAP Publications

View all Publications

2020

Probabilistic structural analysis of Sao Joao Bridge based on the on-site study of the time-dependent behavior of concrete

Authors
Santos, LO; Xu, M; Virtuoso, F;

Publication
STRUCTURAL CONCRETE

Abstract
This article aims to present a procedure to take into account the variability of the time-dependent behavior of concrete on its structural effects, evaluated from the study of creep and shrinkage based on experimental data obtained on-site. For this purpose, the Sao Joao Bridge, a railway bridge built in Porto, Portugal in 1991, is presented as a case study. Sao Joao Bridge is a railway bridge crossing the river Douro. It is a prestressed concrete structure, with a total length of 1,028 m, including the main span of 250 m, two side spans of 125 m, six approaching spans on the left river bank, and three approaching spans on the right river bank (Porto). During bridge construction, a comprehensive structural health monitoring (SHM) system was set up, as well as an on-site study of time-dependent behavior of concrete. This study was based on creep 15 specimens and 15 shrinkage specimens, prepared simultaneously with some segments of the deck, using the same material, and it was kept running during almost 20 years. The results of this study were treated statistically and used as random variables in a probabilistic analysis of the time-dependent behavior of the bridge. After a brief description of the mentioned on-site study and the bridge SHM system, the paper presents the procedure followed on the bridge numerical probabilistic analysis. Finally, the values computed by the numerical model are presented and compared with the experimental values provided by the SHM.

2020

Evaluation of potential tidal impoundment energy systems in Ria de Aveiro, Portugal

Authors
Rocha, J; Abreu, T; Felgueiras, C;

Publication
ENERGY REPORTS

Abstract
The shelving of the seabed and funneling of the water by the estuaries is favorable for tidal impoundment technologies. In this work, the estimation of the tidal potential energy for Ria de Aveiro lagoon was achieved through the application of a model developed in the Delft3D software. This software can reproduce the hydrodynamics of this complex system and simulations were run to identify hot spots to retrieve gravitational potential energy. For the selected places, both power and annual energy were calculated. It was concluded that the tidal energy that can be extracted from Ria de Aveiro is considerable, justifying further studies to consider the accommodation of some type of tidal exploitation, in the foreseeable future. (C) 2020 TheAuthors. Published by Elsevier Ltd.

2020

iLoF: An intelligent Lab on Fiber Approach for Human Cancer Single-Cell Type Identification

Authors
Paiva, JS; Jorge, PAS; Ribeiro, RSR; Balmana, M; Campos, D; Mereiter, S; Jin, CS; Karlsson, NG; Sampaio, P; Reis, CA; Cunha, JPS;

Publication
Scientific reports

Abstract
With the advent of personalized medicine, there is a movement to develop "smaller" and "smarter" microdevices that are able to distinguish similar cancer subtypes. Tumor cells display major differences when compared to their natural counterparts, due to alterations in fundamental cellular processes such as glycosylation. Glycans are involved in tumor cell biology and they have been considered to be suitable cancer biomarkers. Thus, more selective cancer screening assays can be developed through the detection of specific altered glycans on the surface of circulating cancer cells. Currently, this is only possible through time-consuming assays. In this work, we propose the "intelligent" Lab on Fiber (iLoF) device, that has a high-resolution, and which is a fast and portable method for tumor single-cell type identification and isolation. We apply an Artificial Intelligence approach to the back-scattered signal arising from a trapped cell by a micro-lensed optical fiber. As a proof of concept, we show that iLoF is able to discriminate two human cancer cell models sharing the same genetic background but displaying a different surface glycosylation profile with an accuracy above 90% and a speed rate of 2.3 seconds. We envision the incorporation of the iLoF in an easy-to-operate microchip for cancer identification, which would allow further biological characterization of the captured circulating live cells.

2020

Femtosecond laser direct written off-axis fiber Bragg gratings for sensing applications

Authors
Viveiros, D; Amorim, VA; Maia, JM; Silva, S; Frazao, O; Jorge, PAS; Fernandes, LA; Marques, PVS;

Publication
Optics and Laser Technology

Abstract
First order off-axis fiber Bragg gratings (FBGs) were fabricated in a standard single mode fiber (SMF-28e) through femtosecond laser direct writing. A minimum offset distance between the grating and core center of 2.5 µm was found to create a multimode section, which supports two separate fiber modes (LP0,1 and LP1,1), each split into two degenerate polarization modes. The resulting structure breaks the cylindrical symmetry of the fiber, introducing birefringence (˜10-4) resulting in a polarization dependent Bragg wavelength for each mode. Based on the modal and birefringence behavior, three off-axis FBGs were fabricated with 3.0, 4.5 and 6.0 µm offsets from the core center, and then characterized in strain, temperature, and curvature. The tested off-axis FBGs exhibited a similar strain sensitivity of ~1.14 pm/µ? and a temperature sensitivity of ~12 pm/C. The curvature and orientation angle were simultaneously monitored by analyzing the intensity fluctuation and the wavelength shift of the LP1,1 Bragg resonance. A maximum curvature sensitivity of 0.53 dB/m-1 was obtained for the off-axis FBG with a 3.0 µm offset. © 2020 Elsevier Ltd

2020

Femtosecond laser-written long period fibre gratings coated with titanium dioxide for improved sensitivity

Authors
Viveiros, D; De Almeida, JMMM; Coelho, L; Vasconcelos, H; Amorim, VA; Maia, JM; Jorge, PAS; Marques, PVS;

Publication
Optical Sensing and Detection VI

Abstract

Supervised Theses

2019

Optical fibre tweezers for trapping and manipulation of sub-­micrometre particles

Author
Sandra Cristina Martins Rodrigues

Institution
UP-FCUP

2019

Fast prototyping of advanced sensing devices using three-dimensional direct writing with femtosecond laser

Author
Vítor Alexandre Oliveira Amorim

Institution
UP-FCUP

2019

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

Author
Miguel Alexandre Ramos de Melo

Institution
UP-FCUP

2019

Fabrication of Optofluidic Systems by Femtosecond Laser Micromachining

Author
João Miguel Mendes da Silva Maia

Institution
UP-FCUP

2019

Development of differential optrodes for highly sensitive and reliable chemical sensing

Author
João Pedro Sampaio Mendes

Institution
UP-FCUP

Facts & Figures

0Book Chapters

2020

8Academic Staff

2020

12Papers in indexed journals

2020

Contacts