Title: Height-Modulation of Nanopixel Arrays by Light-Controlled Capillary Force Lithography
Abstract: Height modulation of nanopixel arrays is a critical aspect of nanotechnology, offering enhanced and d
iverse functionalities. In this seminar, we would like to introduce light-controlled capillary force lithography for rapidly constructing nanopixel arrays without the need for expensive instruments or complex procedures. By leveraging the capillary rise of photopolymer into nanoscale cavities with spatially varying UV light, this method enables the creation of spatially height-modulated nanopixel arrays. The versatility of this technique is demonstrated through its application in creating grayscale metasurfaces, structural colors, and nanolens arrays. Particularly, this approach offers several advantages, including simplicity and efficiency. The ease and speed of implementation make it a promising solution for customizing nanopixel arrays on-demand to enhance and diversify the functionalities across a wide range of applications.
Bio: Myung-Gi Ji received the B.S. and M.S degree in electrical and electronics engineering from Chung-Ang University, Seoul, South Korea, in 2015 and 2017, respectively. He is currently Ph.D. candidate and working as a research assistant in Dr. Jaeyoun (Jay) Kim’s research group. His research interests include Nanoimprint Lithography in micro/nano fabrication, optics, and device characterization for optical applications.
Advisor: Dr. Jaeyoun (Jay) Kim
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