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Electrospun Polymer Nanofibers as Subwavelength Optical Waveguides Incorporating Quantum Dots

机译:电纺聚合物纳米纤维作为结合了量子点的亚波长光波导

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摘要

There is considerable interest in the use of subwavelength-diameter optical waveguides for applications in nanophotonic devices.[1], [2] Silica fibers, for example, can be drawn to remarkably small diameters and used as waveguides.[3] However, manipulating such fibers in order to incorporate them into integrated devices is a challenge, as is the coupling of light into such small guides. Conventional approaches to optical coupling into fibers such as butt-coupling, mechanical lapping, and tapered waveguides involve steps such as cleaving, polishing, and alignment that are difficult to implement with subwavelength structures.[4], [5] We have explored a process for forming polymeric nanofibers using a technique that can deposit the fibers as optical waveguides directly on planar integrated optical structures. Incorporation of nanoparticles into the fibers can alter the optical properties of the fiber or act as internal optically active elements.
机译:在纳米光子器件中使用亚波长直径的光波导引起了极大的兴趣。[1],[2]例如,可以将石英纤维拉成非常小的直径并用作波导。[3]然而,操纵这样的光纤以将它们结合到集成装置中是一个挑战,光耦合到这种小的导向器中也是这样。传统的将光耦合到光纤中的方法,例如对接耦合,机械研磨和锥形波导,涉及诸如劈裂,抛光和对准等步骤,这些步骤很难用亚波长结构实现。[4],[5]我们已经探索了一个过程使用可以将纤维作为光波导直接沉积在平面集成光学结构上的技术来形成聚合物纳米纤维。将纳米颗粒掺入到纤维中可以改变纤维的光学性质或充当内部光学活性元素。

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