Results 51 to 60 of about 560,130 (293)

Horn-like space-coiling metamaterials toward simultaneous phase and amplitude modulation [PDF]

, 2018
Acoustic metasurfaces represent a family of planar wavefront-shaping devices garnering increasing attention due to their capacity for novel acoustic wave manipulation.
Anderson, Stephan, Ghaffarivardavagh, Reza, Holt, R. Glynn, Nikolajczyk, Jacob, Zhang, Xin   +4 more
core   +2 more sources

Cavity-excited Huygens’ metasurface for wavefront manipulation

Acta Physica Sinica, 2022
In this paper, cavity-excited Huygens’ metasurface is proposed for high-efficiency wavefront manipulation. By adjusting the length of electric dipole and magnetic dipole , the proposed Huygens’ metasurface meta unit can provide nearly 360° phase coverage with sufficiently high transmission efficiency.
Shuai Huang, Tian-Hao Wu, Chun-Sheng Guan, Xu-Min Ding, Yu-Ming Wu, Qun Wu, Xiao-Bin Tang   +6 more
openaire   +1 more source

Highly efficient transmissive wavefront steering with acoustic metagrating composed of Helmholtz-resonators

Materials & Design, 2022
Recently, a kind simply structured metasurface made of binary phase modulated meta-unit shows extraordinary beam steering functionality especially in the reflective beam manipulation.
Kangyao Sun, Yuancheng Fan, Shuang Chen, Fan Yang, Jiahui Li, Quanhong Fu, Fuli Zhang   +6 more
doaj   +1 more source

Lensless Wavefront Parallel Processing of Vector Beams by Self‐Images of a Self‐Organized Q‐Plates Microarray

Advanced Photonics Research, 2022
Wavefront shaping of structured light beams is attracting considerable attention in optics and related technologies. Due to the potential benefits, it is crucial to develop versatile methods for controlling the wavefront in a compact space with the ...
Yuji Sasaki, Kenji Yamazaki, Naoshi Murakami, Keisaku Yamane, Hiroshi Orihara   +4 more
doaj   +1 more source

Nanoarrays for the generation of complex optical wave-forms [PDF]

, 2014
Light beams with unusual forms of wavefront offer a host of useful features to extend the repertoire of those developing new optical techniques.
Andrews, David, Bradshaw, David S., Franke-Arnold, Sonja, Lui, Ruifeng, Padgett, Miles J., Phillips, David B., Williams, Mathew D.   +6 more
core   +1 more source

Optimization of DMD-based independent amplitude and phase modulation by analysis of target complex wavefront

Scientific Reports, 2022
The paper presents the results of a comprehensive study on the optimization of independent amplitude and phase wavefront manipulation which is implemented using a binary digital micromirror device. The study aims to investigate the spatial resolution and
Alexandra Georgieva, Andrey V. Belashov, Nikolay V. Petrov   +2 more
doaj   +1 more source

Underwater Transmitted Wavefront Manipulation Based on Bubble-Arrayed Acoustic Metasurfaces

Frontiers in Physics, 2022
Manipulating underwater acoustic waves along the prescribed trajectory has great potential for various applications. Traditional metasurfaces for underwater acoustic modulation usually have complex structural designs and are complicated to manufacture ...
Zhimin Li, Zibin Lin, Longsheng Zeng, Hao Wu, Xue-Feng Zhu   +4 more
doaj   +1 more source

Broadband High-Efficiency Co-Polarized Wavefront Manipulation Based on Multi-Layered Metasurface for Terahertz Wave [PDF]

IEEE Access
Metasurfaces can achieve multifunctional wavefront control, but most co-polarized metasurfaces can only achieve a 360° phase coverage at specific frequency points.
Su Zong, Jiajun Liang
openalex   +2 more sources

A Step-by-step Guide to the Realisation of Advanced Optical Tweezers [PDF]

, 2015
Since the pioneering work of Arthur Ashkin, optical tweezers have become an indispensable tool for contactless manipulation of micro- and nanoparticles.
Gigain, Sylvain, Jones, Philip H., Marago, Onofrio M., Pesce, Giuseppe, Sasso, Antonio, Volpe, Giorgio, Volpe, Giovanni   +6 more
core   +3 more sources

Caustic design in periodic lattices [PDF]

, 2012
We study curved trajectory dynamics and design in discrete array settings. We find that beams with power law phases produce curved caustics associated with the fold and cusp type catastrophes.
Chremmos, Ioannis, Efremidis, Nikolaos K.   +1 more
core   +2 more sources