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Fabrication of dual analyte luminescent optrodes by photopolymerization

P. A. S. Jorge、C. Maule、Olivier Soppera 等 4 位作者2010-07-08Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE

A technique for the fabrication of luminescence based fiber optic optrodes with multiple analyte sensitivity is proposed. Combination of photosensitive polymers doped with different luminescent indicators was used to produce fiber probes, by self-guiding photopolymerization, having different geometries and sensing cap…

Analytical Chemistry and SensorsSilicone and Siloxane ChemistryPhotopolymerization techniques and applications

Characterization of nanolayer LPG refractometer according surrounding refractive index

Eliana F. C. Simões、Ilda Abe、João A.B.P. Oliveira 等 6 位作者2010-07-08Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE

In this work the behavior of an optical fiber Long Period Grating (LPG) refractometer with the variations of the surrounding refractive index is discussed. The objective is to characterize optical fiber refractometers sensitive to surrounding refractive index, higher and lower than the cladding. For values of surround…

Advanced Fiber Optic SensorsPhotonic and Optical DevicesOptical Coatings and Gratings

Optical properties of a nanomatch-like plasmonic structure

Xudong Cui、Weihua Zhang、Daniel Erni 等 4 位作者2010-07-08Journal of the Optical Society of America A

The optical properties of a match-like plasmonic nanostructure are numerically investigated using full-wave finite-difference time-domain analysis in conjunction with dispersive material models. This work is mainly motivated by the developed technique enabling reproducible fabrication of nanomatch structures as well a…

Plasmonic and Surface Plasmon ResearchPhotonic Crystals and ApplicationsOptical Coatings and Gratings

Enhancing absorption and sensitivity within structured optical fibres

John Canning、Whayne Padden、Danijel Boskovic 等 9 位作者2010-07-08Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE

We propose enhancing the absorption of a species inside the channels of a structured optical fibre by depositing a high index layer within the air holes. This layer draws out the optical field within the mode increasing the overlap interaction. Simulations support the general idea and an experimental demonstration is…

Photonic and Optical DevicesPhotonic Crystals and ApplicationsPorphyrin and Phthalocyanine Chemistry

Radio interference measurements on a ceramic disc insulator string with field reduction electrode

B. Subba Reddy、Udaya Kumar2010-07-08Journal of Instrumentation

This paper presents a laboratory study of the discharge radio noise generated by ceramic insulator strings under normal conditions. In the course of study, a comparison on the performance of two types of insulator strings under two different conditions was studied namely (a) normal disc insulators in a string and (b)…

High voltage insulation and dielectric phenomenaElectromagnetic Compatibility and Noise SuppressionElectrostatic Discharge in Electronics

Understanding the mode coupling process in a strong long period grating

Long Jin、Wei Jin、Jian Ju2010-07-08Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE

A long period grating (LPG) is a longitudinal periodic optical structure that drives couplings from the fundamental core mode into phase-matched co-propagating cladding modes of an optical fiber and a series of attenuation dips are formed in the transmission spectrum [1]. LPGs have been applied as photonic sensors to…

Advanced Fiber Optic SensorsPhotonic and Optical DevicesOptical Coatings and Gratings