Zobrazeno 1 - 10 of 40 pro vyhledávání: '"Luiz Poffo"'
1
Akademický článek
Effect of Sensor Size, Number and Position under the Foot to Measure the Center of Pressure (CoP) Displacement and Total Center of Pressure (CoPT) Using an Anatomical Foot Model
Autor: Hussein Abou Ghaida, Luiz Poffo, Ronan Le Page, Jean-Marc Goujon
Publikováno v: Sensors, Vol 23, Iss 10, p 4848 (2023)
Ambulatory instrumented insoles are widely used in real-time monitoring of the plantar pressure in order to calculate balance indicators such as Center of Pressure (CoP) or Pressure Maps. Such insoles include many pressure sensors; the required numbe
Externí odkaz: https://doaj.org/article/042fb02a7a684537954cd80566f818f2
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2
Akademický článek
Multiparametric Remote Investigation in the near-IR through Optical Fiber for In Situ Measurements
Autor: Letizia Fede, Gregory Lefrere, Maroun Hjeij, Ronan Le Page, Luiz Poffo, Jean-Marc Goujon, Aymeric Le Gratiet
Publikováno v: Sensors, Vol 23, Iss 6, p 2911 (2023)
Diffuse reflectance spectroscopy (DRS) has proven to be a powerful, reliable, and non-invasive optical method for characterizing a specimen. Nevertheless, these methods are based on a rudimentary interpretation of the spectral response and can be irr
Externí odkaz: https://doaj.org/article/2b2d2867b89d4b1984dd3de7743c39b3
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3
Mid-infrared speckle reduction technique for hyperspectral imaging
Autor: Maroun Hjeij, Luiz Poffo, Bastien Billiot, Ronan Le Page, Pascal Besnard, Jean-Marc Goujon
Publikováno v: Proc. SPIE
SPIE Photonics Europe 2022
SPIE Photonics Europe 2022, Apr 2022, Strasbourg, France. pp.121380F, ⟨10.1117/12.2621817⟩
International audience; Recently, we proposed an active mid-infrared (MIR) hyperspectral imaging system for early detection of plant water stress. A quantum cascade tunable laser powered this stand-off detection system, in which "speckle" in images d
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cd0a3d7ce79fd18c959daedfe5a1a608
https://hal.science/hal-04090141
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4
Highlight of polarization filtering effect in passive porous silicon ridge waveguides
Autor: Fabien Cassio, Luiz Poffo, Nathalie Lorrain, Parastesh Pirasteh, Jonathan Lemaitre, Mohammed Guendouz
Publikováno v: Proc. SPIE
SPIE Photonics Europe 2022
SPIE Photonics Europe 2022, Apr 2022, Strasbourg, France. pp.1214805, ⟨10.1117/12.2621320⟩
International audience; Porous silicon is a material used in integrated optics with few studies on its structuration impact on the polarization in the near infra-red range. In this letter, we report optical characterizations around 1550 nm for differ
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6c17ba962ce55d7339103954bf77c77d
https://hal.science/hal-03780794
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5
Active hyperspectral mid-infrared imaging based on a widely tunable quantum cascade laser for early detection of plant water stress
Autor: Ronan Le Page, Pascal Besnard, Luiz Poffo, Jean-Marc Goujon, Maroun Hjeij, Bastien Billiot, Chaimae El Fakir
Publikováno v: Optical Engineering
Optical Engineering, SPIE, 2021, 60 (2), pp.023106. ⟨10.1117/1.OE.60.2.023106⟩
Optical Engineering, 2021, 60 (2), pp.023106. ⟨10.1117/1.OE.60.2.023106⟩
International audience; Plant water stress has been extensively studied using hyperspectral visible-and nearinfrared systems. Thermal imaging and the recent availability of widely tunable infrared quantum cascade laser (QCL) allow us to propose an ac
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ba84c397bc561a75160a0526ebfa2d8a
https://hal.archives-ouvertes.fr/hal-03219536/document
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6
Porosity calibration in a 4-layer porous silicon structure to fabricate a micro-resonator with well-defined refractive indices and dedicated to biosensing applications
Autor: Jonathan Lemaitre, Fabien Cassio, Isabelle Hardy, Nathalie Lorrain, Luiz Poffo, Parastesh Pirasteh, Mohammed Guendouz
Publikováno v: Optical Materials
Optical Materials, Elsevier, 2020, 110, pp.110468. ⟨10.1016/j.optmat.2020.110468⟩
Optical Materials, 2020, 110, pp.110468. ⟨10.1016/j.optmat.2020.110468⟩
International audience; Calibration of the porosity as well as the electrochemical anodization rate in a 4-layer porous silicon (PSi) waveguide structure, including a guiding, a confinement and two technological barrier layers, is studied and validat
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::80aaf851705071405e0cdf866d98da2e
https://hal.archives-ouvertes.fr/hal-03052881
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7
Optical Sensors Using Ultrahigh-Quality Micro-Resonators
Autor: Luiz Poffo, Michel Mortier, Patrice Feron, Louis Ruel, Christelle Pareige, Yannick Dumeige
Publikováno v: ICTON
Whispering gallery mode micro-resonators have been used in various sensing applications. They are normally made of melted glass and can have a quality (Q) factor around 108. We propose to provide optical gain to the micro-resonator by using erbium io
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::783d0788daec253483d0cb83178612f4
https://doi.org/10.1109/icton51198.2020.9203050
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8
Porous silicon micro-resonator implemented by standard photolithography process for sensing application
Autor: Monique Thual, Mohammed Guendouz, Nathalie Lorrain, Paul Azuelos, Isabelle Hardy, Pauline Girault, Jonathan Lemaitre, Joël Charrier, Parastesh Pirasteh, Luiz Poffo
Publikováno v: Optical Materials
Optical Materials, 2017, 72, pp.596-601. ⟨10.1016/j.optmat.2017.07.005⟩
Optical Materials, Elsevier, 2017, 72, pp.596-601. ⟨10.1016/j.optmat.2017.07.005⟩
International audience; A micro-resonator based on porous silicon ridge waveguides is implemented by a large scale standard photolithography process to obtain a low cost and sensitive sensor based on volume detection principle instead of the evanesce
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fa0a3a62aa7d9e6b0dcc01b92f81e430
https://doi.org/10.1016/j.optmat.2017.07.005
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9
Active Hyperspectral Mid-Infrared Imaging Based on Widely Tunable QCL Laser
Autor: Bastien Billiot, Jean-Marc Goujon, Chaimae El Fakir, Luiz Poffo, Pascal Besnard
Publikováno v: IEEE Xplore Digital Library
21st International Conference on Transparent Optical Networks (ICTON 2019)
21st International Conference on Transparent Optical Networks (ICTON 2019), Jul 2019, Angers, France. pp.1-4, ⟨10.1109/ICTON.2019.8840448⟩
ICTON
International audience; Thermal imaging and the recent availability of widely tunable infrared QCL lasers (Quantum Cascade Laser) allow us to propose an active hyperspectral imaging system operating in mid-infrared (MIR) band to obtain simultaneously
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bee0d23400e2f521612ca22a10cdbcf6
https://hal.science/hal-02382528/document
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10
Optimization of porous silicon waveguide design for micro-ring resonator sensing applications
Autor: Mohammed Guendouz, Loïc Bodiou, Monique Thual, Paul Azuelos, Luiz Poffo, Joël Charrier, Nathalie Lorrain, Yannick Dumeige, Pauline Girault
Publikováno v: Journal of Optics
Journal of Optics, Institute of Physics (IOP), 2018, 20 (8), pp.085301. ⟨10.1088/2040-8986/aad01b⟩
Journal of Optics, 2018, 20 (8), pp.085301. ⟨10.1088/2040-8986/aad01b⟩
International audience; The design of Porous Silicon (PSi) integrated micro-resonators is studied for both surface sensing and homogeneous sensing at 1550 nm to optimize the sensors' sensitivity and Limit of Detection (LOD) as a function of the poros
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d84c326919b454a6f1b8ccc022158bce
https://hal.archives-ouvertes.fr/hal-01891887
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