Cookies Policy
The website need some cookies and similar means to function. If you permit us, we will use those means to collect data on your visits for aggregated statistics to improve our service. Find out More
Accept Reject
  • Menu
    Facts & Numbers
    000
    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 research awarded at international optics and photonics conference

    The research work developed by Paulo Santos and Tiago Ferreira, INESC TEC researchers, was acknowledged at the International Conference AOP 2022 – 5th International Conference on Application of Optics and Photonics, promoted by the Portuguese Society of Optics and Photonics (SPOF). André Gomes, former INESC TEC researcher, received the awards for best PhD thesis at the conference.

    03rd October 2022

    INESC TEC robotics project wins VIDA RURAL award

    The METBOTS project, developed by INESC TEC in partnership with ADVID - Vine and Wine cluster, won the "I&D que Marca" award, granted at the 2022 edition of the VIDA RURAL Awards.

    27th May 2022

    Industrial and Systems Engineering

    INESC TEC reaches the podium at the 8th edition of the Crédito Agrícola Entrepreneurship and Innovation award

    The SpecTOM and Smart Trap projects were acknowledged at the 8th edition of the Crédito Agrícola Entrepreneurship and Innovation award, an initiative that rewards innovative projects, with economic viability and significant benefits for society. SpecTOM won the Agro-Industry 4.0 category and Smart Trap (new designation is AgIoTrap) won the Born from Knowledge (BfK) award, granted by the National Innovation Agency (ANI). INESC TEC's Technology Licensing Office (SAL) supported the participation of said projects in this initiative.

    09th March 2022

    Networked Intelligent Systems

    INESC TEC will develop a new method to detect micro-contaminants

    INESC TEC will validate a new approach for the detection of micro-contaminants in different application areas, namely water quality control, optimisation of industrial processes, and even medical diagnosis – in real time, and in complex environments.  

    17th January 2022

    Industrial and Systems Engineering

    INESC TEC leads project to improve productivity and quality of wine production

    The Centre for Robotics in Industry and Intelligent Systems (CRIIS) and the Centre for Applied Photonics (CAP) at INESC TEC will develop an automatic platform to integrate robotic-assisted intelligent photonics sensors, with artificial intelligence and systems biology.  

    10th January 2022

    View all News
    001
    Interest Topics
    Explore Interest Topics
    089

    Featured Projects

    SMARTCAP

    Light-activated cap for catheters sterilization

    2022-2025

    MYTAG

    Dispositivos de monitorização ambiental universais baseados na análise Inteligente de dispersão ótica amplificada com polímeros de impressão molecular

    2022-2025

    LIRA

    Optical Fiber Micro-Kelvin Temperature Sensor Network For Sensitive Optical Payloads

    2021-2023

    DFOSREN

    DFOS – distributed fibre optic sensing para deteção de colisões nas linhas aéreas de muito alta tensão

    2021-2022

    EUSCORES

    EUropean - Scalable and Complementary Offshore Renewable Energy Sources

    2021-2025

    SpecTOM_BIPProof2020

    Programa de atribuição de apoios para prova de conceito da Universidade do Porto

    2021-2021

    GREENPEG

    Análise de composição elementar pela técnica LIBS

    2020-2020

    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

    CorkSurf

    Analisador de composição e homogeneidade de tratamentos de superfície por espectroscopia de plasma induzido por laser

    2020-2023

    CaVaLi

    Cadeia de valor do lítio

    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

    2019-2022

    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

    2018-2022

    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

    2018-2022

    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

    2017-2022

    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
    Paulo Vicente Marques

    Centre Coordinator

    Ireneu Dias

    Centre Coordinator

    ViewClose Alphabet
    • a
    • b
    • c
    • d
    • e
    • f
    • g
    • h
    • i
    • j
    • k
    • l
    • m
    • n
    • o
    • p
    • q
    • r
    • s
    • t
    • u
    • v
    • w
    • x
    • y
    • z
    002

    Laboratories

    Laboratory of Microfabrication

    Imaging Laboratory

    Publications

    CAP Publications

    View all Publications

    2022

    Long-Period Fiber Gratings Coated with Poly(ethylene glycol) as Relative Humidity Sensors

    Authors
    Dias, B; de Almeida, JMMM; Coelho, LCC;

    Publication
    U.Porto Journal of Engineering

    Abstract
    Relative humidity is an important parameter in controlled environments and is typically monitored using low-cost electrochemical sensors with low resolution and accuracy. This kind of sensors cannot not be implemented in harsh or explosive environments (as in pyrotechnic facilities) due to electrical discharges, or in marine structures where the oxidation of the sensing probe materials changes the sensing response). In these cases, fiber optic sensors can provide solutions due to their intrinsic properties, such as immunity to electromagnetic interference and resistance in harsh environments. This work presents preliminary results regarding the steps of the fabrication of Long-Period Fiber Gratings, the coating processes with a thin layer of poly(ethylene glycol) (PEG) and its sensing performance to relative humidity, displaying a from 60 to 100%sensitivity of 0.6 nm/%RH in the range of 80 to 100%RH.

    CloseRead Abstract

    2022

    Femtosecond laser micromachining of suspended silica-core liquid-cladding waveguides inside a microfluidic channel

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

    Publication
    OPTICS AND LASERS IN ENGINEERING

    Abstract
    This work addresses the fabrication of straight silica-core liquid-cladding suspended waveguides inside a microfluidic channel through fs-laser micromachining. These structures enable the reconfiguration of the waveguide's mode profile and enhance the evanescent interaction between light and analyte. Further, their geometry resembles a tapered optical fiber with the added advantage of being monolithically integrated within a microfluidic platform. The fabrication process includes an additional post-processing thermal treatment responsible for smoothening the waveguide surface and reshaping it into a circular cross-section. Suspended waveguides with a minimum core diameter of 3.8 µm were fabricated. Their insertion losses can be tuned and are mainly affected by mode mismatch between the coupling and suspended waveguides. The transmission spectrum was studied and it was numerically confirmed that it consists of interference between the guided LP01 mode and uncoupled light and of modal interference between the LP01 and LP02 modes. © 2022 Elsevier Ltd

    CloseRead Abstract

    2022

    Differential Refractometric Biosensor for Reliable Human IgG Detection: Proof of Concept

    Authors
    Mendes, JP; Coelho, LCC; Jorge, PAS; Pereira, CM;

    Publication
    BIOSENSORS-BASEL

    Abstract
    A new sensing platform based on long-period fiber gratings (LPFGs) for direct, fast, and selective detection of human immunoglobulin G (IgG; Mw = 150 KDa) was developed and characterized. The transducer's high selectivity is based on the specific interaction of a molecularly imprinted polymer (MIPs) design for IgG detection. The sensing scheme is based on differential refractometric measurements, including a correction system based on a non-imprinted polymer (NIP)-coated LPFG, allowing reliable and more sensitive measurements, improving the rejection of false positives in around 30%. The molecular imprinted binding sites were performed on the surface of a LPFG with a sensitivity of about 130 nm/RIU and a FOM of 16 RIU-1. The low-cost and easy to build device was tested in a working range from 1 to 100 nmol/L, revealing a limit of detection (LOD) and a sensitivity of 0.25 nmol/L (0.037 mu g/mL) and 0.057 nm.L/nmol, respectively. The sensor also successfully differentiates the target analyte from the other abundant elements that are present in the human blood plasma.

    CloseRead Abstract

    2022

    Comprehensive comparison of linear and non-linear methodologies for lithium quantification in geological samples using LIBS

    Authors
    Ferreira, MFS; Capela, D; Silva, NA; Goncalves, F; Lima, A; Guimaraes, D; Jorge, PAS;

    Publication
    SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY

    Abstract
    Laser-induced breakdown spectroscopy allows fast chemical analysis of light elements without significant sample preparation, turning it into a promising technique for on-site mining operations. Still, the performance for quantification purposes remains its major caveat, obstructing a broader application of the technique. In this work, we present an extensive comparison of the performances of distinct algorithms for quantification of Lithium in a mining prospection stage, using spectra acquired with both a commercial handheld device and a laboratory prototype. Covering both linear and non-linear methodologies, the results show that, when covering a wide range of concentrations typical on a mining operation, non-linear methodologies manage to achieve errors compatible with a semi-quantitative performance, offering performances better than those obtained with linear methods, which are more affected by saturation and matrix effects. The findings enclosed offer support for future applications in the field and may possibly be generalized for other elements of interest in similar mining environments.

    CloseRead Abstract

    2022

    Sputtering Deposition of TiO2 Thin Film Coatings for Fiber Optic Sensors

    Authors
    Silva, D; Monteiro, CS; Silva, SO; Frazao, O; Pinto, JV; Raposo, M; Ribeiro, PA; Serio, S;

    Publication
    PHOTONICS

    Abstract
    Thin films of titanium dioxide (TiO2) and titanium (Ti) were deposited onto glass and optical fiber supports through DC magnetron sputtering, and their transmission was characterized with regard to their use in optical fiber-based sensors. Deposition parameters such as oxygen partial pressure, working pressure, and sputtering power were optimized to attain films with a high reflectance. The films deposited on glass supports were characterized by UV-Vis spectroscopy, X-ray diffraction (XRD), and scanning electron microscopy (SEM). Regarding the deposition parameters, all three parameters were tested simultaneously, changing the working pressure, the sputtering power, and the oxygen percentage. It was possible to conclude that a lower working pressure and higher applied power lead to films with a higher reflectance. Through the analysis of the as-sputtered thin films using X-ray diffraction, the deposition of both Ti and TiO2 films was confirmed. To study the applicability of TiO2 and Ti in fiber sensing, several thin films were deposited in single mode fibers (SMFs) using the sputtering conditions that revealed the most promising results in the glass supports. The sputtered TiO2 and Ti thin films were used as mirrors to increase the visibility of a low-finesse Fabry–Perot cavity and the possible sensing applications were studied.

    CloseRead Abstract
    Supervised Theses

    2021

    Scalable Digital Baseband Beamformer for Satellite Reception

    Author
    Helder Henrique Avelar

    Institution
    UP-FEUP

    2021

    Regulatory Design with Storage Systems: Assessment of Operational, Market and Economic Features

    Author
    Igor Roberto Rezende e Castro de Abreu

    Institution
    UP-FEUP

    2021

    Implementação de ferramentas de qualidade em processos industriais

    Author
    Maria Francisca Bernardino dos Santos Monteiro

    Institution
    UP-FEUP

    2021

    SPOT – jogo sério baseado em realidade aumentada para a prevenção do melanoma

    Author
    Ana Catarina Rodrigues Ferreira

    Institution
    UP-FEUP

    2021

    Tactical sales and Operations Planning: quantitative decision-making approaches for integrated planning

    Author
    Daniel Filipe Conceição Pereira

    Institution
    UP-FEUP

    View all Supervised Theses

    Facts & Figures

    36Researchers

    2016

    14Senior Researchers

    2016

    3R&D Employees

    2020

    View all Facts & Figures
    Contacts
    CAP
    Centre for Applied Photonics
    Paulo Vicente Marques

    Coordinator

    +351220402301

    paulo.v.marques@inesctec.pt

    Ireneu Dias

    Coordinator

    +351220402301

    ireneu.dias@inesctec.pt