Buscar
Mostrando ítems 1-10 de 23
Sensitivity improvement of a humidity sensor based on silica nanospheres on a long-period fiber grating
(MDPI, 2009)
Artículo / Artikulua,
This work addresses a new configuration that improves the sensitivity of a humidity sensor based on a long-period fiber grating coated with a SiO(2)-nanospheres film. An intermediate higher refractive index overlay, ...
Application of gold complexes in the development of sensors for volatile organic compounds
(World Gold Council, 2007)
Artículo / Artikulua,
Two different kinds of sensors have been developed by using the same kind of vapochromic complexes. The vapochromic materials [Au2Ag2(C6F5)(4)L-2](n) have different colours depending on the ligand L. These materials change, ...
Fringe generation with non-uniformly coated long-period fiber gratings
(Optical Society of America, 2007)
Artículo / Artikulua,
In this work, the spectral characteristics of non-uniform
symmetrically ring shaped coatings deposited on long-period fiber gratings
(LPFGs) have been theoretically and experimentally investigated. To
optimize the ...
Fiber optic multiple-wavelength filter based on one dimensional photonic bandgap structures with defects
(IEEE, 2004)
Artículo / Artikulua,
In this paper, a theoretical analysis is given of an
optical fiber multiple-wavelength tunable filter based on a onedimensional
(1-D) photonic bandgap (PBG) structure with four
defects. To understand the positioning of ...
Volatile organic compound optical fiber sensors: a review
(MDPI, 2006)
Artículo / Artikulua,
Volatile organic compound (VOC) detection is a topic of growing interest with applications in diverse fields, ranging from environmental uses to the food or chemical industries. Optical fiber VOC sensors offering new and ...
Development of an in-fiber nanocavity towards detection of volatile organic gases
(MDPI, 2006)
Artículo / Artikulua,
A fiber optic sensor for Volatile Organic Compounds (VOCs) detection has been developed and characterized for some organic gasses. The sensor is based on a novel vapochromic material, which is able to change its optical ...
Pyridine vapors detection by an optical fibre sensor
(MDPI, 2008)
Artículo / Artikulua,
An optical fibre sensor has been implemented towards pyridine vapors detection; to achieve this, a novel vapochromic material has been used, which, in solid state, suffers a change in colour from blue to pink-white in ...
Fiber-optic nanorefractometer based on one-dimensional photonic-bandgap structures with two defects
(IEEE, 2004)
Artículo / Artikulua,
A theoretical analysis of a fiber-optic photonic-
bandgap (PBG)-based nanorefractometer is presented.
Changes up to 11.2 dB in the optical output power in an index
of refraction range of 1.7 with a sensitivity of 1.5 ...
Development of an optical refractometer by analysis of one-dimensional photonic bandgap structures with defects
(Optical Society of America, 2003)
Artículo / Artikulua,
A theoretical analysis of an optical fiber photonic-bandgap-based refractometer is presented. The design is based on a quarter-wave ref lector with one defect. By modifying both the real and the imaginary parts of the index ...
Strategies for fabrication of hydrogen peroxide sensors based on electrostatic self-assembly (ESA) method
(Elsevier, 2004)
Artículo / Artikulua,
An optical fiber sensor has been fabricated for detection of 5 M–0.1mM concentrations of hydrogen peroxide with a linear response. The
deposition method used is electrostatic self-assembly (ESA) of polymer cationic and ...