Results 1 to 10 of about 4,317 (190)

Metalens-style image synthesis for metalens imaging via image-to-image translation [PDF]

Scientific Reports
Metalenses offer wafer-scale, ultra-thin optics for compact cameras, but strong chromatic and field-dependent aberrations still limit their practical use.
Chanik Kang, Hyewon Suk, Joonhyuk Seo, Ikbeom Jang, Haejun Chung   +4 more
doaj   +2 more sources

Design of high efficiency achromatic metalens with large operation bandwidth using bilayer architecture

Opto-Electronic Advances, 2021
Achromatic metalens composed of arrays of subwavelength nanostructures with spatially varying geometries is attractive for a number of optical applications. However, the limited degree of freedom in the single layer achromatic metasurface design makes it
Yilin Wang, Qingbin Fan, Ting Xu
doaj   +3 more sources

Diamond Metasurface-Based Optical Tweezers With Enhanced Robustness. [PDF]

Adv Sci (Weinh)
Conventional metasurface optical tweezers are hindered by thermal instability from laser heating. This work overcomes this by using diamond metasurfaces, exploiting their low thermo‐optic coefficient and minimal thermal expansion. The platform demonstrates stable particle trapping, translocation, and rotation, enabling robust miniaturized systems for ...
Zhu JY, Li KX, Ni PN, Li SH, Wang SR, Dou WJ, Zhu YY, Wei ZP, Shan CX.   +8 more
europepmc   +2 more sources

Dynamic phase assembled terahertz metalens for reversible conversion between linear polarization and arbitrary circular polarization

Opto-Electronic Advances, 2022
If a metalens integrates the circular polarization (CP) conversion function, the focusing lens together with circular-polarizing lens (CPL) in traditional cameras may be replaced by a metalens.
Jitao Li, Guocui Wang, Zhen Yue, Jingyu Liu, Jie Li, Chenglong Zheng, Yating Zhang, Yan Zhang, Jianquan Yao   +8 more
doaj   +3 more sources

Electrically Tunable Bifocal Metalens with Diffraction‐Limited Focusing and Imaging at Visible Wavelengths

Advanced Science, 2021
Tunable optical devices powered by metasurfaces provide a new path for functional planar optics. In particular, lenses with tunable focal lengths can play a key role in various fields with applications in imaging, displays, and augmented and virtual ...
Trevon Badloe, Inki Kim, Yeseul Kim, Joohoon Kim, Junsuk Rho   +4 more
doaj   +2 more sources

Review for optical metalens based on metasurfaces: fabrication and applications [PDF]

Microsystems & Nanoengineering
Metalens is the next generation of optical metasurfaces for compact imaging, sensing, and display applications that allow the phase, polarization, frequency, amplitude, angular momentum, etc.
Zhikai Hu, Manna Gu, Ying Tian, Chenxia Li, Mingmin Zhu, Haomiao Zhou, Bo Fang, Zhi Hong, Xufeng Jing   +8 more
doaj   +2 more sources

Dual‐Wavelength Switchable Focusing via a Fabry‐Pérot Resonance‐Enabled Hydrogel Metalens

Advanced Physics Research
Active metalenses overcome the static properties of traditional devices, offering a promising platform for realizing tunable focusing with versatile functionalities.
Xiaofeng Dong, Yufeng Zha, Tianyu Liu, Qijun Yan, Leyi Ren, Zhipeng Qian, Jiao Tang, Qianqian Zhou, Degao Xu, Wen‐xing Yang, Chenjie Dai   +10 more
doaj   +2 more sources

Nature inspired design methodology for a wide field of view achromatic metalens [PDF]

Nanophotonics
Metalenses have become ubiquitous in academic research and have begun to make their transition to industry. However, chromatic aberration still greatly limits the applications of metalenses.
Engelberg Jacob, Mazurski Ronen, Levy Uriel   +2 more
doaj   +2 more sources

Focus control of wide-angle metalens based on digitally encoded metasurface

Opto-Electronic Advances
Based on the principle of super-symmetric lens with quadratic phase gradient transformation, combined with the principle of digital coding of metasurface, we propose a wide-angle coded metalens for focusing control in two-dimensional space. This metalens
Yi Chen, Simeng Zhang, Ying Tian, Chenxia Li, Wenlong Huang, Yixin Liu, Yongxing Jin, Bo Fang, Zhi Hong, Xufeng Jing   +9 more
doaj   +3 more sources

Broadband achromatic metalens for high-resolution imaging [PDF]

Light: Science & Applications
Introduction of the stepwise phase dispersion compensation layer allowed broadband achromatic metalens to have a high numerical aperture, which enabled high-resolution metalens imaging.
Yangkyu Kim, Inki Kim
doaj   +2 more sources