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Recently, it was learned from the University of Science and Technology that experts from the university have collaborated with experts from the American University School of Medicine and Southwest College to propose a new optical mode for 3D printer LED light source - one-dimensional Bloch surface waves existing in the composite structure of multi-layer dielectric films and nano special blue optical fibers. The 3D printed ultraviolet curing light source mode has successfully solved the technical problem of extremely fine polymer nanofibers being unable to transmit optical signals on conventional substrates.

As is well known, the tremendous achievements of micrometer scale special blue light fibers have led to the highly developed industry and the rapid 'shrinking' of the world. Therefore, the fundamental theory of microfibers was awarded the Nobel Prize in Physics in 2009. Nowadays, nanoscale 3D printing of ultraviolet curing light source fibers has become an international frontier research hotspot. Polymer nanofibers, due to their excellent mechanical properties, especially their good elasticity and flexibility, and the ability to change their material properties through chemical design, are one of the preferred choices for constructing ultra compact photonic devices and integrated photonic circuits for micro 3D printer LED light sources.

However, its material is flexible and has a huge aspect ratio, so it must be placed on a substrate, such as commonly used glass or silicon wafers, in order to be truly practical and develop new nano 3D printed ultraviolet curing light source optical waveguide sensor devices. When the radius of the nano special blue optical fiber is very small, such as less than 125nm, the nano optical fiber placed on glass will not be able to transmit optical signals. To solve this problem, the research team carefully designed multi-layer dielectric films using structural parameters to support polymer nanofibers, and used the photonic bandgap of LED light sources in 3D printers with multi-layer films to prevent the leakage of optical signals in the nanofibers. The experimental results indicate that extremely fine nanofibers can fully transmit optical signals on the multilayer dielectric film.

It is reported that the research on the 3D printed ultraviolet curing light source has received support from project funds such as the Ministry of Science and Technology, the National Natural Science Foundation of China, the Energy Chemistry Collaborative Innovation Center, and the Anhui Outstanding Youth Fund. The production process of related special blue light fiber samples has received support from the 3D printer LED light source instrument and technology of the Micro Nano Research and Manufacturing Center of the University of Science and Technology of China.

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