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We design and investigate the optical properties of a novel hollow-core antiresonant fiber with nested elliptical cladding elements. This new structure shows low confinement loss even with a relatively small core. The lowest confinement loss of this structure is more than two orders of magnitude smaller than its circular-element counterparts. When the size of the cladding elements is properly designed,...
By means of doping the initial dissolved polymer, we have successfully fabricated optical-quality graphene-doped polymer nanofibers by a physical drawing technique. Using a waveguiding scheme, single graphene-doped polymer nanofibers exhibit broadband saturable absorbance (transmission change∼10%).
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