Results 101 to 110 of about 182 (116)
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Acoustic broadband metacouplers

Applied Physics Letters, 2017
We present the concept of acoustic metacoupler for broadband impedance match between two media with different impedances and cross sections. An implementation is demonstrated that produces spatial gradient of effective acoustic impedance by utilizing helical-like structure with continuously varying pitch instead of changing the cross-section or ...
Kun Li   +4 more
openaire   +1 more source

Efficient Metacoupler for Complex Surface Plasmon Launching

Advanced Optical Materials, 2018
AbstractSurface plasmons (SPs) promise versatile potential applications in many aspects and thus have been a subject of enormous interest. As the most essential functionality, efficient coupling of free‐space light into complex SP field is of particular interest in current research.
Quan Xu   +9 more
openaire   +1 more source

Pathways for achieving conservation targets under metacoupled anthropogenic disturbances

Journal of Environmental Management
Enhancing connectivity between protected areas stands as a paramount objective in advancing global conservation goals, particularly in coastal regions grappling with escalating human disruptions. However, little attention has been given to quantitative assessment of human-nature interactions within and among protected areas.
Yi Li   +5 more
openaire   +2 more sources

High-performance polarization-controlled terahertz spoof surface plasmon polaritons metacoupler

2019 International Conference on Microwave and Millimeter Wave Technology (ICMMT), 2019
In this paper, a linear polarization-controlled (LPC) spoof surface plasmon polaritons (SSPPs) meta-coupler with high efficiency and directionality is proposed and demonstrated in the terahertz (THz) regime. By changing the polarization (TE or TM polarization) of the incident electromagnetic (EM) waves, the corresponding SSPPs can be directionally ...
Li-Zheng Yin   +4 more
openaire   +1 more source

Direct femtosecond-laser writing of optical-range nanoscale metagratings/metacouplers on diamond surfaces

Applied Physics Letters, 2019
A natural diamond surface was nanopatterned in a subablative scanning mode by multiple tightly focused 515-nm, 300-fs laser pulses, resulting in regular surface metagratings (nanoripples) with a subwavelength period of Λ ∼ 100 nm, an almost undistorted crystalline structure, free from sp2-carbon, oriented perpendicular to the laser polarization, and ...
S. I. Kudryashov   +7 more
openaire   +1 more source

Promoting the optimization of ecosystem services supply-flow-demand by integrating urban-rural metacoupling interactions

Transactions in Earth, Environment, and Sustainability
Clarifying how to systematically manage ecosystem services is crucial for addressing urban-rural conflicts and promoting urban-rural sustainable development, while ecosystem service optimization offers an effective approach. The optimization of ecosystem services encompasses not only the traditional supply and demand but also the entire process ...
Xiao Sun, Jianmin Qiao
exaly   +2 more sources

P‐47: Multi‐wavelength achromatic metacoupler for augmented reality display using adjoint method

SID Symposium Digest of Technical Papers
Diffractive waveguides are a promising optical combiner technology for augmented reality (AR) as they provide the potential for the slimmest geometry and lightest weight. However, their severe chromatic aberration imposes a big challenge for full‐color display applications.
Zhongtao Tian   +4 more
openaire   +1 more source

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