Results 41 to 50 of about 769 (50)

High-Resolution Phase-Only Holographic 3D Display Based on Light Field Images Rendered in the Frequency Domain

open access: yesIEEE Photonics Journal, 2021
Phase-only holograms are more attractive than the amplitude holograms for the higher energy utilization and the possibility to realize on-axis holographic 3D display without conjugate image.
Fuyang Xu   +6 more
doaj   +1 more source

An Ultrabroadband THz Absorber Based on Structured Doped Silicon With Antireflection Techniques

open access: yesIEEE Photonics Journal, 2018
Broadband absorber in the terahertz region (0.1-10 THz) has attracted considerable attentions due to its important applications in detecting, imaging, and electromagnetic stealth.
Jing Yuan   +6 more
doaj   +1 more source

Monolithic metasurface spatial differentiator enabled by asymmetric photonic spin-orbit interactions

open access: yesNanophotonics, 2020
Spatial differentiator is the key element for edge detection, which is indispensable in image processing, computer vision involving image recognition, image restoration, image compression, and so on.
He Qiong   +7 more
doaj   +1 more source

Broadband and high-efficiency accelerating beam generation by dielectric catenary metasurfaces

open access: yesNanophotonics, 2020
Self-accelerating beams show considerable captivating phenomena and applications owing to their transverse acceleration, diffraction-free and self-healing properties in free space.
Zhang Fei   +7 more
doaj   +1 more source

Using light to image millimeter wave based on stacked meta-MEMS chip

open access: yesLight: Science & Applications
A stacked metamaterial MEMS (meta-MEMS) chip is proposed, which can perfectly absorb electromagnetic waves, convert them into mechanical energy, drive movement of the optical micro-reflectors array, and detect millimeter waves.
Han Wang   +8 more
doaj   +1 more source

Scaled transverse translation by planar optical elements for sub-pixel sampling and remote super-resolution imaging

open access: yesNanophotonics
High resolution imaging represents a relentless pursuit within the field of optical system. Multi-frame super-resolution (SR) is an effective method for enhancing sampling density, while it heavily relies on sub-pixel scale displacement of a bulky camera.
Zhang Qi   +9 more
doaj   +1 more source

Catenary Electromagnetics for Ultra‐Broadband Lightweight Absorbers and Large‐Scale Flat Antennas

open access: yesAdvanced Science, 2019
Catenary functions are exciting and fundamental building blocks in constructing various kinds of waves in subwavelength structures. Here, a simple yet powerful approach inspired by catenary optics is proposed to realize efficient manipulation of ...
Yijia Huang   +7 more
doaj   +1 more source

All-metallic geometric metasurfaces for broadband and high-efficiency wavefront manipulation

open access: yesNanophotonics, 2019
Geometric metasurfaces have shown superior phase control capacity owing to the geometric nature of their phase profile. The existing geometric metasurfaces are generally composed of metal-dielectric composites or all-dielectric subwavelength structures ...
Xie Xin   +7 more
doaj   +1 more source

Deep-learning-assisted inverse design of polarization-multiplexed structural color filters with ultrahigh saturation based on all-dielectric metasurface

open access: yesResults in Physics
Although great progress has been made for metasurface-based structural color filters, there are still significant challenges in encoding metasurfaces with complex color images, especially in high saturation or multi-channel cases, where traditional ...
Yongqiang Hu   +8 more
doaj  

Plotting philosophy picture of uniaxial magnetic anisotropy in arsenide and phosphide dilute ferromagnetic semiconductors

open access: yesResults in Physics
In this work, we performed a systematic investigation on the comparison of magnetic anisotropy between three III-Mn-V dilute ferromagnetic semiconductors (Ga,Mn)As, (In,Mn)As and (Ga,Mn)P prepared by ion implantation and pulsed laser melting. Compressive
Mingyang Tian   +8 more
doaj  

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