A5024897185- Photonic and Optical Devices
- Magneto-Optical Properties and Applications
- Advanced Fiber Optic Sensors
- Gold and Silver Nanoparticles Synthesis and Applications
- Quantum Dots Synthesis And Properties
- Metamaterials and Metasurfaces Applications
- Plasmonic and Surface Plasmon Research
- Nanoplatforms for cancer theranostics
Universidade do Estado do Rio de Janeiro
2024
Universidade Federal do Rio de Janeiro
2018-2022
Pontifical Catholic University of Rio de Janeiro
2015
In this paper we discuss the results obtained with an in-fiber Fabry-Perot interferometer (FPI) used in strain and magnetic field (or force) sensing. The intrinsic FPI was constructed by splicing a small section of capillary optical fiber between two pieces standard telecommunication fiber. sensor built attaching to magnetostrictive alloy one configuration also magnet another. Our sensors were found be over 4 times more sensitive fields around 10 less temperature when compared Fiber Bragg...
In this article, a compact fiber-optic current sensor (FOCS) based on an in-fiber Fabry–Pérot interferometer (FPI) and magnetostrictive transducer is presented. The FPI employed in the proposed FOCS was fabricated with 273- <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$\mu \text{m}$ </tex-math></inline-formula> Section of capillary fiber spliced between two pieces standard single-mode (SMF). commercial...
In this paper we discuss results obtained with an in-line Fabry-Perot interferometer (FPI) built by splicing a small section of capillary fiber between two pieces standard single mode fiber, resulting in rectangular air cavity. The FPIs were characterized regarding sensitivity to temperature and longitudinal strain. bonded Terfenol-D, magnetostrictive alloy, be used as magnetic field sensors. Fiber Bragg Gratings also Terfenol-D for comparison. FPI based on optical showed higher applied when...
The inclusion of nanoparticles in technological development increases every year. For example, metallic are applied cosmetics, medicine, and sensing areas among others. When light interacts with nanoparticles, the Localized Surface Plasmon Resonance (LSPR) can occur. LSPR is subject advanced courses Physics some students could have several difficulties its comprehension. To benefit students, it proposed a very simple simulator built Python to study influence features spherical host medium...
We demonstrated an LSPR nanobiosensor in a colloidal solution of Au nanoparticles, for the binding between monoclonal antibody anti-T. solium and vesicular fluid from T. antigen. The sensor response had limit detection 0.06μg/mL, antigen concentrations 0.1 to 2.0 μg/mL, with potential Neurocysticercosis diagnosis.
This paper presents a study comparative between two types of in-fiber Fabry-Pérot interferometers (FPI) and commercial fiber Bragg grating (FBG) for magnetic field sensing. The first FPI sensor (FP1) was manufactured with 273 $\mu$m section capillary fiber. other (FP2) by etching the tip telecom SMF (germanium-doped) in hydrofluoric acid. sensors plus (FBG), were bonded on Terfenol-D piece. results show that FP2 presented sensitivity 2.02 times higher than FP1 3.4 FBG sensor.
This work presents a comparative study between magnetic field sensors based on in-fiber Fabry-Pérot interferometers (FPI) and fiber Bragg gratings (FBG). FPI results showed high sensitivity being 340% higher than the FBG commercial.