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Conferencia JM López-Higuera. Viernes 31 de Octubre 13:00, Sala de Grados de la Facultad de Ciencias PDF Imprimir E-Mail
Viernes 31 de Octubre 13:00, Sala de Grados de la Facultad de Ciencias

J. M. López-Higuera (Grupo de Ingeniería Fotónica, Universidad de Cantabria)

Sensing Using light.

Resumen:

Today, Photonics is considered by the European Commission a Key Enabling Technology (KET) for the Europe Development and also an Essential Technology for the Nation (USA).

Photonic Sensing understood, in wide sense, as “sensing using light technologies” will be an area with very important expectations of annual growths and strong socio-economic impacts in the present decade (2010-2020).

In the talk, after a mention of what it must be understood as Photonics Field we will go into Photonic Sensing area including the particular case of the sensors using fiber technologies (OFS). Several significant cases will be presented and discussed. Challenges will be also addressed.



El Profesor Jose Miguel López-Higuera es Doctor Ingeniero de Telecomunicaciones (1989) y Catedrático de Tecnología Electrónica (2001) y es el jefe del Grupo de Ingeniería Fotónica de la Universidad de Cantabria. Su investigación se centra en sistemas sensores de fibra óptica e instrumentación para ingeniería, construcción, biomedicina, etc., campo en el que en ha dirigido más de 80 proyectos y contribuido en los últimos 15 años con más de 300 publicaciones, más de 40 charlas invitadas en congresos y 17 patentes. El Prof. López-Higuera es evaluador de numerosos paneles de proyectos nacionales e internacionales, referee de revistas como Nature Materials, etc. y editor de varias revistas del campo de la fotónica, así como miembro (fellow) de las prestigiosas organizaciones SPIE, OSA y IEEE. Además es co-fundador de las empresas tecnológicas TELNOS, Empiric Technologies, SL y Sadiq Engineering.
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INVITED CONFERENCE PDF Imprimir E-Mail
European Workshop on Fibre Optic Sensors for Industrial Applications (Toulouse, France); 2014

Fiber Bragg grating sensors for Structural Health Monitoring in civil Engineering adn Composites

José Miguel López-Higuera

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CONFERENCIA INVITADA PDF Imprimir E-Mail
 5th OMGS-2014 (Nanjing, China; 2014)
 
Photonic Sensors: Sensing using Light Technologies (Invited Paper)
 
José Miguel López-Higuera
 
Today, Photonics is considered by the European Commission a Key Enabling Technology (KET) for the Europe Development and also an Essential Technology for the Nation (USA). Photonic Sensing understood in wide sense as “sensing using light technologies” will be and area with very important expectations of annual growths and strong socio-economic impacts in the present decade (2010-2020). In the talk, after a mention of what it must be understood as Photonics field we will go into Photonic Sensing area including the particular case of the sensors using fiber technologies (OFS). Several significant cases (including the ones useful for geotechnical applications) will be presented and discussed.
 
 
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CONFERENCIA INVITADA PDF Imprimir E-Mail
20th Imeko TC-4 (Benevento, Italy; 2014)

Spectroscopic Optical Sensors for Welding Diagnostics

J. Mirapeix, A. Cobo, J.J. Valdiande, R. Ruiz-Lombera, P.B. Garcia-Allende, O.M. Conde, L. Rodriguez-Cobo and J.M. Lopez-Higuera

Degradation of the wall of human ascending thoracic aorta has been assessed through Optical Coherence Tomography (OCT). OCT images of the media layer of the aortic wall exhibit micro-structure degradation in case of diseased aortas from aneurysmal vessels. The OCT indicator of degradation depends on the dimension of areas of the media layer where backscattered reflectivity becomes smaller due to a disorder on the  morphology of elastin, collagen and smooth muscle cells (SMCs). Efficient pre-processing of the OCT images is required to accurately extract the dimension of degraded areas after an optimized thresholding procedure. OCT results have been validated against conventional histological analysis.
The OCT qualitative assessment has achieved a pair sensitivity-specificity of 100%-91.6% in low-high degradation discrimination when a threshold of 4965.88μm2 is selected. This threshold suggests to have physiological meaning. The OCT quantitative evaluation of degradation achieves a correlation of 0.736 between the OCT indicator and the histological score. This in-vitro study can be transferred to the clinical scenario to provide an intraoperative assessment tool to guide cardiovascular surgeons in open
repair interventions.
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