Journal ArticleDOI
Printable Nanocomposite Metalens for High-Contrast Near-Infrared Imaging
TLDR
In this paper, a printable metalense composed of a silicon nanocomposite is developed to overcome the manufacturing limitations of conventional metalenses. The nanocompositionite is synthesized by dispersing silicon n...Abstract:
Printable metalenses composed of a silicon nanocomposite are developed to overcome the manufacturing limitations of conventional metalenses. The nanocomposite is synthesized by dispersing silicon n...read more
Citations
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Journal ArticleDOI
Holographic metasurface gas sensors for instantaneous visual alarms.
Inki Kim,Won-Sik Kim,Kwan Kim,Muhammad Afnan Ansari,Muhammad Qasim Mehmood,Trevon Badloe,Yeseul Kim,Junho Gwak,Heon Lee,Young-Ki Kim,Junsuk Rho +10 more
TL;DR: In this article, a compact sensor platform that integrates liquid crystals and holographic metasurfaces is proposed to autonomously sense the existence of a volatile gas and provide an immediate visual holographic alarm.
Journal ArticleDOI
Metasurface-Driven Optically Variable Devices.
C. U. Jung,Gyeongtae Kim,Minsu Jeong,Jaehyuck Jang,Zhaogang Dong,Trevon Badloe,Joel K. W. Yang,Joel K. W. Yang,Junsuk Rho +8 more
TL;DR: Metasurface-driven OVDs (mOVDs) can contain multiple optical responses in a single device, making them difficult to reverse engineered as discussed by the authors, which can provide a more robust solution for optical anti-counterfeiting.
Journal ArticleDOI
Novel Spin‐Decoupling Strategy in Liquid Crystal‐Integrated Metasurfaces for Interactive Metadisplays
Muhammad Naveed,Joohoon Kim,Isma Noreen Javed,Muhammad Afnan Ansari,Junhwa Seong,Y. Massoud,Trevon Badloe,In-Cheol Kim,Kashif Riaz,Muhammad Zubair,Muhammad Qasim Mehmood,Junsuk Rho +11 more
TL;DR: In this paper , a simple asymmetric spin-orbit interaction (SOI)-based technique is realized for multifunctional metaoptics, employing only a single unit cell, breaking the conventional tradeoff between design complexity and efficient asymmetric transmission efficiency.
Journal ArticleDOI
Electrically Tunable Bifocal Metalens with Diffraction-Limited Focusing and Imaging at Visible Wavelengths
TL;DR: In this paper, an electrically controllable bifocal metalens at visible wavelengths by incorporating a metasurface designed to focus light at two different focal lengths, with liquid crystals to actively manipulate the focal length of the metalens through the application of an external bias.
Journal ArticleDOI
Photonic Encryption Platform via Dual-Band Vectorial Metaholograms in the Ultraviolet and Visible.
Joo-Suc Kim,Dongmin Jeon,Junhwa Seong,Trevon Badloe,Nara Jeon,Gyeong Uk Kim,Jaekyung Kim,Sang Hun Baek,Jong-Lam Lee,Junsuk Rho +9 more
TL;DR: In this article , a dual-band vectorial metahologram in the visible and ultraviolet (UV) regimes for optical encryption was proposed. But the proposed scheme is limited to the use of a pixelated metasurface.
References
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Journal ArticleDOI
Metasurface eyepiece for augmented reality
Gun-Yeal Lee,Jong-Young Hong,Soon Hyoung Hwang,Seokil Moon,Hyeokjung Kang,Sohee Jeon,Hwi Kim,Jun-Ho Jeong,Byoungho Lee +8 more
TL;DR: A metasurface application to realize a compact near-eye display system for augmented reality with a wide field of view, full-color imaging, high resolution and a sufficiently large eyebox is demonstrated.
Journal ArticleDOI
Adaptive metalenses with simultaneous electrical control of focal length, astigmatism, and shift
TL;DR: Elect electrically tunable large-area metalenses controlled by artificial muscles capable of simultaneously performing focal length tuning as well as on-the-fly astigmatism and image shift corrections, which until now were only possible in electron optics are demonstrated.
Journal ArticleDOI
Vapor-phase self-assembled monolayer for improved mold release in nanoimprint lithography
Gun Young Jung,Zhiyong Li,Wei Wu,Yong Chen,Deirdre L. Olynick,Shih-Yuan Wang,William M. Tong,†,‖ and,R. Stanley Williams +7 more
TL;DR: This work compared the atomic force microscopy, ellipsometry, reflection-absorption infrared spectroscopy, and contact angle results collected from substrates treated by two different application processes and found that the vapor-phase process was superior.
Journal ArticleDOI
Complete amplitude and phase control of light using broadband holographic metasurfaces
Gun-Yeal Lee,Gwanho Yoon,Seung-Yeol Lee,Hansik Yun,Jaebum Cho,Kyookeun Lee,Hwi Kim,Junsuk Rho,Byoungho Lee +8 more
TL;DR: The first experimental demonstrations of the complete complex-amplitude holograms with subwavelength definition at visible wavelengths were achieved, and excellent performances with a remarkable signal-to-noise ratio as compared to those of traditional phase-only holograms were obtained.
Journal ArticleDOI
Fast-Fourier-transform based numerical integration method for the Rayleigh-Sommerfeld diffraction formula
Fabin Shen,Anbo Wang +1 more
TL;DR: The implementation of a fast-Fourier-transform based direct integration method is presented, and Simpson's rule is used to improve the calculation accuracy, and the Rayleigh-Sommerfeld diffraction integral integral is investigated.