The sensitivity of the plasmonic sensor surfaces can be enhanced significantly if the sensor region is bent to U shape. Here, an experimental verification is done to evaluate the performance variations of the U-bent p...The sensitivity of the plasmonic sensor surfaces can be enhanced significantly if the sensor region is bent to U shape. Here, an experimental verification is done to evaluate the performance variations of the U-bent plasmonic silver coated sensor surfaces with different coating orientations inside the vacuum coating chamber. The performances of uncoated, partially coated as well as fully coated optical fiber U-bent surfaces are analyzed. The results show that the coating configuration of the U-bent surfaces can affect the sensing property. A fully silver coated sensor region outperforms the other two types of sensor surfaces with better sensing capability.展开更多
We report on fabrication of a rhodamine-6G-gold-nanoparticle doped polymer optical fiber.The gold nanoparticle is synthesized directly into the monomer solution of the polymer using laser ablation synthesis in liquid....We report on fabrication of a rhodamine-6G-gold-nanoparticle doped polymer optical fiber.The gold nanoparticle is synthesized directly into the monomer solution of the polymer using laser ablation synthesis in liquid.The size of the particle is found from the transmission electron microscopy.Rhodamine-6G is then mixed with the nanoparticle-monomer solution and optical characterization of the solution is investigated.It is found that there is a pronounced quenching of fluorescence of rhodamine 6G due to fluorescence resonance energy transfer.The monomer solution containing rhodamine 6G and gold nanoparticles is now made into a cylindrical rod and drawn into a polymer optical fiber.Further,the photostability is calculated with respect to the pure dye doped polymer optical fiber.展开更多
基金supported by the University Research Fellowship of Cochin University of Science and Technology(CUSAT),Cochin,India
文摘The sensitivity of the plasmonic sensor surfaces can be enhanced significantly if the sensor region is bent to U shape. Here, an experimental verification is done to evaluate the performance variations of the U-bent plasmonic silver coated sensor surfaces with different coating orientations inside the vacuum coating chamber. The performances of uncoated, partially coated as well as fully coated optical fiber U-bent surfaces are analyzed. The results show that the coating configuration of the U-bent surfaces can affect the sensing property. A fully silver coated sensor region outperforms the other two types of sensor surfaces with better sensing capability.
文摘We report on fabrication of a rhodamine-6G-gold-nanoparticle doped polymer optical fiber.The gold nanoparticle is synthesized directly into the monomer solution of the polymer using laser ablation synthesis in liquid.The size of the particle is found from the transmission electron microscopy.Rhodamine-6G is then mixed with the nanoparticle-monomer solution and optical characterization of the solution is investigated.It is found that there is a pronounced quenching of fluorescence of rhodamine 6G due to fluorescence resonance energy transfer.The monomer solution containing rhodamine 6G and gold nanoparticles is now made into a cylindrical rod and drawn into a polymer optical fiber.Further,the photostability is calculated with respect to the pure dye doped polymer optical fiber.
