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About

About

José Manuel Baptista graduated in “Electrical and Computer Engineering” from the University of Porto, Porto, Portugal, in 1991, followed by the M.Sc. degree in “Physics of Laser Communications” from the University of Essex, Colchester, U.K., in 1993, and then he obtained the Ph.D. degree in “Electrical and Computer Engineering” from the University of Porto, in 2002.

Currently, he is the Vice-Rector of the University of Madeira for Research and External Relations. He is Associate Professor of the Exact Sciences and Engineering Department of the University of Madeira, Portugal. He is also Senior Researcher in the Optoelectronics and Electronics Systems Unit at INESC Porto, Portugal.

His main scientific areas are the fiber optic sensors, fiber optic communications and fiber optic technologies. He is author of 78 journal publications, 110 communications in national and international conferences, 3 chapter books, 2 patents, reviewer of several scientific publications, and member of various international scientific organizations. He was recently the Leader of the European INTERREG SUDOE Project "ECOAL-MGT - Ecological Management of Coal Waste Piles, SOE3/P2/P714 and he has participated in several national and international funded scientific projects.

Interest
Topics
Details

Details

  • Nationality

    Portugal
  • Centre

    Applied Photonics
  • Contacts

    +351220402301
    jose.m.baptista@inesctec.pt
003
Publications

2022

Tunable Plasmonic Resonance Sensor Using a Metamaterial Film in a D-Shaped Photonic Crystal Fiber for Refractive Index Measurements

Authors
Cardoso, MP; Silva, AO; Romeiro, AF; Giraldi, MTR; Costa, JCWA; Santos, JL; Baptista, JM; Guerreiro, A;

Publication
APPLIED SCIENCES-BASEL

Abstract
Subwavelength cells of metallic nanorods arrayed in a dielectric background, termed “metamaterials”, present bulk properties that are useful to control and manipulate surface plasmon resonances. Such feature finds tremendous potential in providing a broad manifold of applications for plasmonic optical sensors. In this paper, we propose a surface-plasmon-resonance-based sensor with spectral response tunable by the volume fraction of silver present in a metamaterial layer deposited on a D-shaped photonic crystal fiber. Using computational simulations, we show that sensitivity and resolution can be hugely altered by changing the amount of constituents in the metamaterial, with no further modifications in the structure of the sensor. Moreover, the designed sensor can also be applied to label the average volume fraction of silver in the metamaterial layer and then to estimate its effective constitutive parameters.

2021

Development of a Long Period Fiber Grating Interrogation System Using A Multimode Laser Diode

Authors
Silva, LH; Santos, P; Coelho, LCC; Jorge, P; Baptista, JM;

Publication
SENSORS

Abstract
Optical fiber gratings have long shown their sensing capabilities. One of the main challenges, however, is the interrogation method applied, since typical systems tend to use broadband light sources with optical spectrum analyzers, laser scanning units or CCD (Charged Coupled Device) spectrometers. The following paper presents the development of an interrogation system, which explores the temperature response of a multimode laser diode, in order to interrogate long period fiber gratings. By performing a spectral sweep along one of its rejection bands, a discrete attenuation spectrum is created. Through a curve fitting technique, the original spectrum is restored. The built unit, while presenting a substantially reduced cost compared with typical interrogation systems, is capable of interrogating along a 10 nm window with measurement errors reaching minimum values as low as 0.4 nm, regarding the grating central wavelength, and 0.4 dB for its attenuation. Given its low cost and reduced dimensions, the developed system shows potential for slow-changing field applications.

2021

Second-Order Dispersion Sensor Based on Multi-Plasmonic Surface Resonances in D-Shaped Photonic Crystal Fibers

Authors
Cardoso, MP; Silva, AO; Romeiro, AF; Giraldi, MTR; Costa, JCWA; Santos, JL; Baptista, JM; Guerreiro, A;

Publication
PHOTONICS

Abstract
This paper proposes a scheme to determine the optical dispersion properties of a medium using multiple localized surface plasmon resonances (SPR) in a D-shaped photonic crystal fiber (PCF) whose flat surface is covered by three adjacent gold layers of different thicknesses. Using computational simulations, we show how to customize plasmon resonances at different wavelengths, thus allowing for obtaining the second-order dispersion. The central aspect of this sensing configuration is to balance miniaturization with low coupling between the different localized plasmon modes in adjacent metallic nanostructures. The determination of the optical dispersion over a large spectral range provides information on the concentration of different constituents of a medium, which is of paramount importance when monitoring media with time-varying concentrations, such as fluidic media.

2021

Multi-Plasmonic Resonance Based Sensor for the Characterization of Optical Dispersion Using a D-Shaped Photonic Crystal Fiber

Authors
Cardoso, MP; Silva, AO; Romeiro, AF; Giraldi, MTR; Costa, JCWA; Santos, JL; Baptista, JM; Guerreiro, A;

Publication
IEEE INSTRUMENTATION & MEASUREMENT MAGAZINE

Abstract
Surface plasmon-polaritons are electromagnetic modes that can be excited at a conducting-dielec-tric interface [1]. The engineering of surface plasmon resonance (SPR) based devices is a milestone in the development of optical sensors. The ability to construct an all-optical system to confine lightwave power at subwavelength dimensions with higher levels of sensitivity and resolution in a broad spectral range are the central features that have attracted a rapid-growing interest in SPR sensors [2]. Particularly, minute variations in the refractive index of the surrounding medium (also known as analyte) change significantly the characteristics of the electromagnetic fields of a surface plasmon mode. As a consequence, the spectral shifts in the mode phase and also losses variations in the associated confined power can be used to detect analyte properties that are described in terms of the refractive index [3].

2021

Multiparameter Plasmonic Resonance Sensor using a D-shaped Photonic Crystal Fiber

Authors
Romeiro, AF; Cardoso, MP; Silva, AO; Costa, JCWA; Giraldi, MTR; Santos, JL; Baptista, JM; Guerreiro, A;

Publication
2021 SBMO/IEEE MTT-S INTERNATIONAL MICROWAVE AND OPTOELECTRONICS CONFERENCE (IMOC)

Abstract
This paper proposes a scheme to determine multiple parameters of a medium using multiple localized surface plasmon resonances (SPR) in a D-shaped photonic crystal fiber (PCF) whose flat surface is covered by two adjacent gold layers of different thicknesses. We show how to customize plasmon resonances at different wavelengths with very low cross-talk between them, thus allow obtaining the optical dispersion, the average refractive index and the temperature of the sample. Since the surface plasmon resonances are excited at distinct spectral channels, the sensing structure can be used to determine simultaneously these parameters.

Supervised
thesis

2018

Analysis, design, and evaluation of a contextual information system for older adults

Author
Inês Alexandra Santos Carneiro

Institution
UP-FEUP

2018

Probabilistic Prediction of Power Flow in a Distributed Energy Cloud

Author
Mohamed Fouad Hassan Lotfi Mahmoud

Institution
UP-FEUP