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  1. Article

    Open Access

    Hydrogels for active photonics

    Conventional photonic devices exhibit static optical properties that are design-dependent, including the material’s refractive index and geometrical parameters. However, they still possess attractive optical r...

    Byoungsu Ko, Nara Jeon, Jaekyung Kim, Hyunjung Kang… in Microsystems & Nanoengineering (2024)

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  2. Article

    Open Access

    Author Correction: Tunable metasurfaces via the humidity responsive swelling of single-step imprinted polyvinyl alcohol nanostructures

    Byoungsu Ko, Trevon Badloe, Younghwan Yang, Jeonghoon Park… in Nature Communications (2022)

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  3. Article

    Open Access

    Tunable metasurfaces via the humidity responsive swelling of single-step imprinted polyvinyl alcohol nanostructures

    The application of hydrogels in nanophotonics has been restricted due to their low fabrication feasibility and refractive index. Nevertheless, their elasticity and strength are attractive properties for use in...

    Byoungsu Ko, Trevon Badloe, Younghwan Yang, Jeonghoon Park… in Nature Communications (2022)

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  4. No Access

    Article

    Nanoimprint lithography for high-throughput fabrication of metasurfaces

    Metasurfaces are composed of periodic sub-wavelength nanostructures and exhibit optical properties that are not found in nature. They have been widely investigated for optical applications such as holograms, w...

    Dong Kyo Oh, Taejun Lee, Byoungsu Ko, Trevon Badloe… in Frontiers of Optoelectronics (2021)