Results 181 to 190 of about 1,127 (217)
Some of the next articles are maybe not open access.
Hollow-core microstructured polymer optical fiber
Optics Letters, 2006We have fabricated microstructured polymer optical fibers that guide light in a hollow core using the photonic bandgap mechanism. The hollow core allows the use of polymer fibers to be extended to wavelength ranges where material absorption typically prohibits their use, with attenuation lower than the material loss observed in the infrared.
Alexander, Argyros +3 more
openaire +2 more sources
Localized biosensing with Topas microstructured polymer optical fiber
Optics Letters, 2006We present what is believed to be the first microstructured polymer optical fiber (mPOF) fabricated from Topas cyclic olefin copolymer, which has attractive material and biochemical properties. This polymer allows for a novel type of fiber-optic biosensor, where localized sensor layers may be activated on the inner side of the air holes in a ...
Grigoriy, Emiliyanov +6 more
openaire +2 more sources
A microstructured polymer optical fiber biosensor
2006 Conference on Lasers and Electro-Optics and 2006 Quantum Electronics and Laser Science Conference, 2006We demonstrate selective detection of fluorophore labeled antibodies from minute samples probed by a sensor layer of the complementary biomolecules immobilized inside the air holes of microstructured Polymer Optical Fibers.
Grigoriy Emiliyanov +5 more
openaire +1 more source
Future directions for microstructured polymer optical fibers
SPIE Proceedings, 2004Microstructured Polymer Optical Fibers (MPOF) were first made in 2001, and subsequent development has aimed at exploiting the material and design opportunities they present. Most effort has been focused on developing approaches for high bandwidth MPOF, and investigating the properties of multimode microstructured fibers.
Maryanne C. Large +12 more
openaire +1 more source
Numerical aperture in microstructured polymer optical fibers
SPIE Proceedings, 2005Microstructured or 'air-clad' fibers, with air holes surrounding a large core, have demonstrated much wider light acceptance angles than conventional fibers. Recently, a new method employing leaky modes has been used to determine the numerical aperture in highly multimode air-clad microstructured fibers.
Nader A. Issa +3 more
openaire +1 more source
Design of photosensitive microstructured polymer optical fibers
Frontiers of Optoelectronics in China, 2009We propose a new hole-assisted polymer optical fiber design to eliminate the influence of dopant diffusion and to increase the ultra violet (UV) writing efficiency in fiber Bragg grating inscription. The optical waveguide is formed inside a solid core polymethyl methacrylate (PMMA) doped with photosensitive trans-4-stilbenemethanol, surrounded by a ...
Hwa-Yaw Tam +3 more
openaire +1 more source
Fabrication of microstructured polymer optical fiber preform
SPIE Proceedings, 2006We report a new technology to fabricate microstructured polymer optical fiber (MPOF, also named polymer photonic crystal fiber, pPCF) preform rods by in-situ polymerization of monomer in a mould. Series of pPCF preform rods including elliptic core fiber preform rod, single-mode fiber preform rod and ring-type holes structured preform rods have been ...
Yani Zhang +6 more
openaire +1 more source
Laser based microstructuring of polymer optical fibers for sensors optimization
SPIE Proceedings, 2015Microstructuring of Polymer Optical Fibers-POF through surface modification with UV excimer laser radiation has been performed and studied. The laser modified surface cavities on fibers act as material receptors of exact volume allowing highly controllable and repeatable structures.
Athanasekos L. +5 more
openaire +2 more sources
Applications of microstructured polymer optical fibers
2010 Photonics Global Conference, 2010This paper considers several applications of microstructured polymer optical fibres (mPOF) which rely on the properties of the polymer. These include strain sensing using single-mode mPOF inscribed with long period gratings, the use chiral materials to make circularly birefringent fibres, combinations of polymers to study novel fibre designs and the ...
openaire +1 more source
Transmission of terahertz radiation using a microstructured polymer optical fiber
Optics Letters, 2008A hollow-core microstructured polymer optical fiber was analyzed in the terahertz (THz) region. Spectral analysis of time domain data shows propagation of THz waves in both the hollow-core and the microstructured cladding with a time delay of approximately 20 ps. The frequency range and shift of the transmission bands between different sized waveguides
Carlito S, Ponseca +6 more
openaire +2 more sources

