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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

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].

2019

New Trends in the Simulation of Nanosplasmonic Optical D-Type Fiber Sensors

Authors
Guerreiro, A; Santos, DF; Baptista, JM;

Publication
SENSORS

Abstract
This article presents a review of the numerical techniques employed in simulating plasmonic optical sensors based on metal-dielectric nanostructures, including examples, ranging from conventional D-type fiber sensors, to those based on photonic crystal D-type fibers and incorporating metamaterials, nanowires, among other new materials and components, results and applications. We start from the fundamental physical processes, such as optical and plasmonic mode coupling, and discuss the implementation of the numerical model, optical response customization and their impact in sensor performance. Finally, we examine future perspectives.

2019

Enhancing nanoplasmonic sensing with metallic nanowires: From D-type to suspended core fibres

Authors
dos Santos, DN; Guerreiro, A; Baptist, JM;

Publication
FOURTH INTERNATIONAL CONFERENCE ON APPLICATIONS OF OPTICS AND PHOTONICS

Abstract
This paper explores and compares three different plasmonic optical fibre sensor configurations, based on D-type and suspended core fibres combined with metallic nanowires, and investigates how their different geometrical parameters can affect the coupling between the guided optical mode supported by fibres and the localized plasmonic modes, and how that ultimately results in improved sensor performance. Fibre optical sensors based on plasmonic resonances with metallic nanostructures have revolutionized the field of optical sensing because they have permitted to obtain sharper and fine-tuned resonances with higher sensitivity. The essence for exploring the properties of localized plasmonic modes and their coupling with the optical guided mode depends not only on the choice of the materials employed in the device, but also on the geometry of the different components and their relative position, which ultimately determines the spatial distributions of optical power of the different modes and consequently their overlap and coupling. In this work, we use numerical simulations based on finite element methods to demonstrate the importance of shaping the features of the guided optical mode to promote the coupling with the localized modes, in the two types of fibres considered. The results clarify some of the fundamental aspects behind the operation of these devices and provide novel proposals for enhanced refractive index sensors. © 2019 SPIE.

Supervised
thesis

2018

Recognition and 6 DoF Pose Estimation of 3D Models in Depth Sensor Data

Author
Inês de Sousa Caldas Rodrigues Leite

Institution
UP-FEUP

2018

Generation Expansion Plan using Dynamic Systems - Application on Brazilian System

Author
Mário Domingos Pires Coelho

Institution
UP-FEUP

2018

short-medium term operation planning of power systems under competitive environment

Author
José Carlos Vieira Sousa

Institution
UP-FEUP