Design of acoustic/elastic phase gradient metasurfaces: principles, functional elements, tunability, and coding

AL Chen, YS Wang, YF Wang… - Applied …, 2022 - asmedigitalcollection.asme.org
Acoustic/elastic metasurfaces as a kind of two-dimensional metamaterials are of
subwavelength thickness and show remarkable ability of acoustic/elastic wave …

Non-diffracting light wave: fundamentals and biomedical applications

YX Ren, H He, H Tang, KKY Wong - Frontiers in Physics, 2021 - frontiersin.org
The light propagation in the medium normally experiences diffraction, dispersion, and
scattering. Studying the light propagation is a century-old problem as the photons may …

Robust far-field optical image transmission with structured random light beams

Y Liu, X Zhang, Z Dong, D Peng, Y Chen, F Wang… - Physical Review …, 2022 - APS
The ability to overcome the adverse effect induced by the obstacles within the transmission
link is a central challenge in long-distance optical image transmission and is significantly …

Generation of a controllable multi-spiral beam by using the modulated helico-conical phases

S Liu, Y Zheng, H ** forces with circular pearcey airy beams
Y Liang, L Tan, N Liu, K Chen, H Liang, H Wu, B Luo… - Physical Review …, 2023 - APS
We propose and demonstrate an autofocusing beam, named the circular Pearcey Airy beam
(CPAB). It is found that the CPAB exhibits a superior autofocusing property, leading to an …

Dynamical power flow and trap**-force properties of two-dimensional Airy-beam superpositions

F Lu, L Tan, Z Tan, H Wu, Y Liang - Physical Review A, 2021 - APS
Abruptly autofocusing beams have attracted more and more attention because of their
potential applications in optical manipulation. Here, we not only experimentally and …

Generation of auto-focusing vortex beam via segment vortex phase for imaging edge-enhancement

D Lin, S Tao - Physica Scripta, 2024 - iopscience.iop.org
The auto-focusing beam based on the circular Airy beam and segmented vortex phase,
termed circular Airy segmented vortex beam (CASVB), was generated. During propagation …

Potential barrier-induced dynamics of finite energy Airy beams in fractional Schrödinger equation

X Huang, X Shi, Z Deng, Y Bai, X Fu - Optics Express, 2017 - opg.optica.org
The dynamics of Airy beams modeled by the fractional Schrödinger equation (FSE) with the
potential barrier are numerically investigated. Adjusting the Lévy index provides a …

Obstacle evasion in free-space optical communications utilizing Airy beams

G Zhu, Y Wen, X Wu, Y Chen, J Liu, S Yu - Optics letters, 2018 - opg.optica.org
A high speed free-space optical communication system capable of self-bending signal
transmission around line-of-sight obstacles is proposed and demonstrated. Airy beams are …

Broadband acoustic focusing by Airy-like beams based on acoustic metasurfaces

DC Chen, XF Zhu, Q Wei, DJ Wu, XJ Liu - Journal of Applied Physics, 2018 - pubs.aip.org
An acoustic metasurface (AM) composed of space-coiling subunits is proposed to generate
acoustic Airy-like beams (ALBs) by manipulating the transmitted acoustic phase. The self …