Results 141 to 150 of about 3,849 (260)

Multichannel terahertz quasi-perfect vortex beams generation enabled by multifunctional metasurfaces. [PDF]

Nanophotonics, 2022
Liu W, Yang Q, Xu Q, Jiang X, Wu T, Gu J, Han J, Zhang W.   +7 more
europepmc   +1 more source

On Determination Method for Resolution of Secondary Electron Images in Scanning Electron Microscopy

Advanced Science, EarlyView.
An idealized SEM, termed Rayleigh's microscope, is constructed by Monte Carlo simulation to represent imaging conditions that just satisfy the Rayleigh criterion. Based on this physically defined model, sharpness–resolution conversion curves are established and combined with the Rose criterion, enabling automated resolution evaluation from practical ...
Tongfang Yang, Yanbo Zou, Zejun Ding
wiley   +1 more source

Direct all-electrical decoding of vector vortex beams on chip. [PDF]

Sci Adv
Dai M, Zhang X, Chen W, Wang C, Wang Q, Wang QJ.   +5 more
europepmc   +1 more source

Optical metasurfaces for generating and manipulating optical vortex beams. [PDF]

Nanophotonics, 2022
Ahmed H, Kim H, Zhang Y, Intaravanne Y, Jang J, Rho J, Chen S, Chen X.   +7 more
europepmc   +1 more source

Recent Advances in Laser‐Induced Graphene‐Based Gas Sensors: From Sensing Mechanisms to Biomedical Applications

Advanced Science, EarlyView.
Laser‐induced graphene (LIG) provides a scalable, laser‐direct‐written route to porous graphene architecture with tunable chemistry and defect density. Through heterojunction engineering, catalytic functionalization, and intrinsic self‐heating, LIG achieves highly sensitive and selective detection of NOX, NH3, H2, and humidity, supporting next ...
Md Abu Sayeed Biswas, Ankan Dutta, Shuvendu Das, Abu Musa Abdullah, Wanqing Zhang, Fatema Tuz Zohra, Huanyu Cheng   +6 more
wiley   +1 more source

Multi-channel ultrasonic Bessel vortex beams by spatial multiplexing metalens. [PDF]

Commun Eng
Su Y, Wang D, Gu Z, Liu C, Zhu J.
europepmc   +1 more source

Balanced-ternary-inspired reconfigurable vortex beams using cascaded metasurfaces. [PDF]

Nanophotonics, 2022
Liu J, Qi J, Yao J, Hu W, Zhang D, Xu HX, Wang X.   +6 more
europepmc   +1 more source

Atomic Defects in Layered Transition Metal Dichalcogenides for Sustainable Energy Storage and the Intelligent Trends in Data Analytics

Advanced Science, EarlyView.
This review comprehensively summarizes the atomic defects in TMDs for their applications in sustainable energy storage devices, along with the latest progress in ML methodologies for high‐throughput TEM data analysis, offering insights on how ML‐empowered microscopy facilitates bridging structure–property correlation and inspires knowledge for precise ...
Zheng Luo, Ying Yang, Zizhen Fu, Fengqi Liu, Susu Fang, Kele Xu, Shanshan Wang   +6 more
wiley   +1 more source

The Generation and Control of Irregularly Shaped Perfect Vector Vortex Beams on Hybrid Poincaré Spheres Using All-Dielectric Metasurfaces. [PDF]

Nanophotonics
Sun X, Yang X, Tao H, Song H, Cai J, Zou J, He J, Wang J.   +7 more
europepmc   +1 more source

Generation of Subdiffraction Optical Needles by Simultaneously Generating and Focusing Azimuthally Polarized Vortex Beams through Pancharatnam-Berry Metalenses. [PDF]

Nanomaterials (Basel), 2022
Shen Z, Huang S.
europepmc   +1 more source