Dr. Susana Silva

INESC TEC, Institute for Systems and Computer Engineering, Technology and Science, Porto, Portugal

Dr. Susana Silva

INESC TEC, Institute for Systems and Computer Engineering, Technology and Science, Porto, Portugal

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Academic Career Length

21Years (2006-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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23 December 2010 in Applied Microbiology and Biotechnology

Journal Article

Light requirements in microalgal photobioreactors: an overview of biophotonic aspects

9 April 2020 in Sensors

Journal Article

Optical Fiber Temperature Sensors and Their Biomedical Applications

The use of sensors in the real world is on the rise, providing information on medical diagnostics for healthcare and improving quality of life. Optical fiber sensors, as a result of their unique properties (small dimensions, capability of multiplexing, chemical inertness, and immunity to electromagnetic fields) have found wide applications, ranging from structural health monitoring to biomedical and point-of-care instrumentation. Furthermore, these sensors usually have good linearity, rapid response for real-time monitoring, and high sensitivity to external perturbations. Optical fiber sensors, thus, present several features that make them extremely attractive for a wide variety of applications, especially biomedical applications. This paper reviews achievements in the area of temperature optical fiber sensors, different configurations of the sensors reported over the last five years, and application of this technology in biomedical applications.

23 May 2012 in Applied Optics

Journal Article

Ultrahigh-sensitivity temperature fiber sensor based on multimode interference

Edwin G. P. Pachon

The proposed sensing device relies on the self-imaging effect that occurs in a pure silica multimode fiber (coreless MMF) section of a single-mode–multimode–single-mode (SMS)-based fiber structure. The influence of the coreless-MMF diameter on the external refractive index (RI) variation permitted the sensing head with the lowest MMF diameter (i.e., 55 μm) to exhibit the maximum sensitivity (

2800 nm / RIU

). This approach also implied an ultrahigh sensitivity of this fiber device to temperature variations in the liquid RI of 1.43: a maximum sensitivity of

- 1880 pm / ° C

was indeed attained. Therefore, the results produced were over 100-fold those of the typical value of approximately

13 pm / ° C

achieved in air using a similar device. Numerical analysis of an evanescent wave absorption sensor was performed, in order to extend the range of liquids with a detectable RI to above 1.43. The suggested model is an SMS fiber device where a polymer coating, with an RI as low as 1.3, is deposited over the coreless MMF; numerical results are presented pertaining to several polymer thicknesses in terms of external RI variation.

5 April 2011 in IEEE Sensors Journal

Journal Article

A Review of Palladium-Based Fiber-Optic Sensors for Molecular Hydrogen Detection

Palladium-based fiber-optic sensors have been one of the most promising configurations for hydrogen sensing. In the latest decade, fiber-optic sensors have indeed earned a strong interest owing to their ability to monitor molecular hydrogen at specific spatial points-either as a sensing tip device or in large areas via multiple sensing regions distributed along the optical fiber. This review focuses on the various types of optical fiber hydrogen sensors, containing specifically palladium as active element. Three distinct working principles are described, viz. interferometric-, in tensity-, and fiber grating-based sensors; their characteristics and sensing performances are critically overviewed.

11 September 2008 in Applied Optics

Journal Article

Simultaneous measurement of multiparameters using a Sagnac interferometer with polarization maintaining side-hole fiber

Gabriela Statkiewicz-Barabach

J. Wojcik

A Sagnac interferometer with a section of a polarization maintaining side-hole fiber for multiparameter measurement is proposed. The sensor was experimentally demonstrated to be sensitive to torsion, temperature, and longitudinal strain, simultaneously. The birefringence in the investigated side-hole fiber is induced simultaneously by the elliptical shape of a germanium-doped core and by field overlap with the air holes surrounding the core. The latter effect is purely geometrical and causes high chromatic dispersion of the group birefringence in the long wavelength range, which results in a different period of spectral interference fringes. A different wavelength response is obtained for each interference fringe peak when the fiber is subjected to torsion, temperature, or longitudinal strain. A matrix equation for simultaneous measurement of the three parameters—torsion, temperature, and longitudinal strain—is also proposed.

15 May 2014 in Photonic Sensors

Journal Article

Advanced fiber-optic acoustic sensors

Acoustic sensing is nowadays a very demanding field which plays an important role in modern society, with applications spanning from structural health monitoring to medical imaging. Fiber-optics can bring many advantages to this field, and fiber-optic acoustic sensors show already performance levels capable of competing with the standard sensors based on piezoelectric transducers. This review presents the recent advances in the field of fiber-optic dynamic strain sensing, particularly for acoustic detection. Three dominant technologies are identified — fiber Bragg gratings, interferometric Mach-Zehnder, and Fabry-Pérot configurations — and their recent developments are summarized.

About Me

Susana Novais holds a PhD in Physics Engineering from the University of Aveiro (2019), awarded with honors and distinction, and has been an Assistant Researcher at the Centre for Applied Photonics, INESC TEC, since 2019. She has authored more than 70 publications in international journals, book chapters, and conference proceedings, and serves as Academic Editor for Sensors as well as a reviewer for several international journals. She is actively involved in the international scientific community, having participated in the organization and technical committees of conferences such as EOSAM and OFS. She is a member of the EOSAM Technical Committee and serves on the programme committees of IEEE ICC, PHOTOPTICS, and AOP. She is also a member of the Portuguese Society for Optics and Photonics (SPOF). Her research focuses on the development of fibre-optic sensing technologies for biomedical, environmental, maritime, and harsh-environment applications, and has more recently expanded to Raman spectroscopy, biomedical diagnostics, optical fibre design, and machine-learning approaches for acoustic signal classification.

Dr. Susana Silva

Dr. Susana Silva

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About Me