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Yang, Zhiyong
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Publications (8/8 displayed)
- 2021High refractive index IR lenses based on chalcogenide glasses molded by spark plasma sinteringcitations
- 2015Mid infrared supercontinuum generation from chalcogenide glass waveguides and fiberscitations
- 2015Mid infrared supercontinuum generation from chalcogenide glass waveguides and fiberscitations
- 2014Relative contribution of stoichiometry and mean coordination to the fragility of Ge-As-Se glass forming liquidscitations
- 2013Thermoelectric bulk glasses based on the Cu-As-Te-Se systemcitations
- 2010Optical microfabrication of tapers in low-loss chalcogenide fiberscitations
- 2010Composition dependence and reversibility of photoinduced refractive index changes in chalcogenide glasscitations
- 2010Opto-electrophoretic detection of bio-molecules using conducting chalcogenide glass sensors.citations
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article
Optical microfabrication of tapers in low-loss chalcogenide fibers
Abstract
We demonstrate the use of photoinduced fluidity in low-loss chalcogenide fibers for producing tapers with fine control of the diameter and geometry. The tapers produced this way act as sensing zones along chalcogenide glass fibers used for evanescent wave spectroscopy. The optical microfabrication method consists in irradiating the chalcogenide fiber with sub-bandgap laser light under a tensile stress. The resulting athermal photoinduced fluidity permits to produce tapers with good control over the geometry without altering the optical properties of the fiber. Gains in detection sensitivity greater than 1 order of magnitude are measured using these tapers.