Results 21 to 30 of about 11,312 (236)
Photoinduced Electron Transfer Based Ion Sensing within an Optical Fiber
Sensors, 2011 We combine suspended-core microstructured optical fibers with the photoinduced electron transfer (PET) effect to demonstrate a new type of fluorescent optical fiber-dip sensing platform for small volume ion detection.
Tanya M. Monro +5 more
doaj +1 more source
Ultra-low Brillouin scattering in anti-resonant hollow-core fibers
APL Photonics, 2020 Sensitive optical experiments in fiber, including for applications in communications and quantum information, are limited by the noise generated when light scatters from thermally excited guided-acoustic phonons.
Arjun Iyer +4 more
doaj +1 more source
APL Photonics, 2021 The tracking of small particles is an important but challenging task for biological applications such as disease diagnostics and medical research. Current methods are limited to the use of bulky instruments such as flow cytometers and microscopes.
Lu Peng +7 more
doaj +1 more source
Sensors, 2022 The use of simpler and less bulky equipment, with a reliable performance and at relative low cost is increasingly important when assembling sensing configurations for a wide variety of applications.
Luís Pereira +6 more
doaj +1 more source
Passive Temperature-Compensating Technique for Microstructured Fiber Bragg Gratings [PDF]
, 2008 The thermal drift of the characteristic wavelength of fiber Bragg gratings (FBGs) photowritten in the core of microstructured fibers (MOFs) is significantly reduced by inserting a liquid of suitable refractive index into their holes.
Bernard Dussardier +7 more
core +6 more sources
Antiguiding in microstructured optical fibers
Optics Express, 2004 Antiguiding, as opposed to positive index-contrast guiding (or index-guiding), in microstructured air-silica optical fibers is shown to have a significant influence on the fiber's transmission property, especially when perturbations exist near the defect core.
M, Yan, P, Shum
openaire +2 more sources
Index matching between passive and active tellurite glasses for use in microstructured fiber lasers: Erbium doped lanthanum-tellurite glass [PDF]
, 2009 Active and passive variants of La-containing tellurite glasses have been developed with matched refractive indices. The consequences of adding lanthanum to the glass was studied through measurements of the crystallization stability, glass viscosity and ...
Birks +23 more
core +1 more source
Fiber Optic-Based Refractive Index Sensing at INESC Porto
Sensors, 2012 A review of refractive index measurement based on different types of optical fiber sensor configurations and techniques is presented. It addresses the main developments in the area, with particular focus on results obtained at INESC Porto, Portugal.
Orlando Frazão +10 more
doaj +1 more source
Advances in infrared and imaging fibres for astronomical instrumentation [PDF]
, 2006 Optical fibres have already played a huge part in ground based astronomical instrumentation, however, with the revolution in photonics currently taking place new fibre technologies and integrated optical devices are likely to have a profound impact on ...
Haynes, Roger +3 more
core +2 more sources
Microstructured optical fibers: where�??s the edge?
Optics Express, 2002 We establish that Microstructured Optical Fibers (MOFs) have a fundamental mode cutoff, marking the transition between modal confinement and non-confinement, and give insight into the nature of this transition through two asymptotic models that provide a mapping to conventional fibers.
Kuhlmey, B. T. +5 more
openaire +3 more sources