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The authors review their recent advances in the development of optical fiber Bragg grating (FBG) sensor technologies. After a brief review of the fiber grating sensors, several newly developed FBG sensors are described. With the continuous development of fiber materials, microstructures and post-processing technologies, FBG sensors are still creative after the first demonstration of permanent gratings...
Some novel periodic structures with different internal nanopatterns are numerically and experimentally demonstrated based on multi-exposure two-beam interference lithography. Two-dimensional quasi-crystal structures were fabricated with precisely controlled exposure directions and doses. The experiment results show such a fabrication technology is very promising for making diverse large-area submicron...
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