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Slow-light and enhanced sensitivity in a displacement sensor using a lossy fiber-based ring resonator
(IEEE / OSA, 2013)
info:eu-repo/semantics/article,
Along the last years, much debate has been done on the efficiency of slow-light phenomena in order to enhance lightmatter interactions, especially for sensing purposes. This improvement could be key to develop more compact ...
Simultaneous measurement of humidity and temperature based on a partially coated optical fiber long period grating
(Elsevier, 2016)
info:eu-repo/semantics/article,
A humidity and temperature optical fiber sensor based on a long-period grating (LPG), which can provide simultaneous response to both magnitudes, is proposed and demonstrated via experiments. Previously, the LPG was fully ...
Continuous liquid-level sensor based on a long-period grating and microwave photonics filtering techniques
(IEEE, 2016)
info:eu-repo/semantics/article,
A fiber optic liquid-level sensor based on a long period grating (LPG) is proposed and experimentally validated. The principle of operation is based on a technique used to analyze microwave photonics filters. A 4-cm-long ...
Low-power class-AB CMOS voltage feedback current operational amplifier with tunable gain and bandwidth
(IEEE, 2014)
Artículo / Artikulua,
A CMOS class AB variable gain Voltage Feedback Current Operational Amplifier (VFCOA) is presented. The implementation is based on class AB second generation current conveyors and exploits an electronically tunable ...
A comparative study of degradation and performance of thin film photovoltaic generators versus a multi-crystalline generator
(2013)
info:eu-repo/semantics/conferenceObject,
Thin film solar cells (TFSC) are supposed to have higher energy yield rates than crystalline silicon (Si-x) mainly possible by some enhancements like lower temperature coefficient and higher absorption of diffuse light. ...
A novel camera phone-based platform for Sol-Gel-derived fluorescence pH sensing
(2013)
info:eu-repo/semantics/conferenceObject,
In this work a novel camera phone system for fluorescence-based sol-gel-derived pH sensing is presented. The sol-gel based pH material, a microfluidic chip and a camera phone have been combined to obtain a fluorescence-based ...
Optical sensor based on polymer electrospun nanofibers for sensing humidity
(2011)
info:eu-repo/semantics/conferenceObject,
A novel humidity sensor based on polymer electrospun nanofibers coating onto an optical fiber is proposed in this work. The coating is composed of poly(acrylic acid), and its fabrication was performed by the electrospinning ...
Humidity sensor based on a long-period fiber grating coated with a hydrophobic thin film
(2010)
info:eu-repo/semantics/conferenceObject,
In this work it is proposed a novel fiber optic humidity sensor based on a functionally coated long-period fiber grating (LPG). The coating is composed of tetraorthosilicate matrix functionalized with perfluorooctyltriethoxysilane ...
Real-time imaging with frequency scanning array antenna for industrial inspection applications at W band
(Springer, 2018)
info:eu-repo/semantics/article,
A real-time imaging system based on a frequency scanning antenna for conveyor belt setups is presented in this paper. The frequency scanning antenna together with an inexpensive parabolic reflector operates at the W band ...
Compact dual-band terahertz quarter-wave plate metasurface
(IEEE, 2014)
info:eu-repo/semantics/article,
A dual-band quarter-wave plate based on a modified extraordinary transmission hole array is numerically analyzed and experimentally demonstrated at terahertz frequencies. To control independently orthogonal polarizations, ...