Zobrazeno 1 - 10
of 183
pro vyhledávání: '"wavelength scale"'
Publikováno v:
Materials & Design, Vol 238, Iss , Pp 112736- (2024)
Sound diffusion performance is considered as an important issue in building acoustics. A well-diffused sound field can effectively enhance the human listening experience. In this context, inspired by Fresnel lenses in optics, we design a sub-waveleng
Externí odkaz:
https://doaj.org/article/2bc6636978504e79be8f4bef6d866759
Autor:
Yuan Quan, Ge Qin, Chen Linsen, Zhang Yi, Yang Yuhang, Cao Xun, Wang Shuming, Zhu Shining, Wang Zhenlin
Publikováno v:
Nanophotonics, Vol 12, Iss 13, Pp 2295-2315 (2023)
Unlike traditional optical components, which rely on the gradual accumulation of light along the optical path over a distance much larger than the wavelength to form a wavefront, metasurfaces manipulate light field properties on the wavelength thickn
Externí odkaz:
https://doaj.org/article/29ac8544fed7466387571c22e1a30d4f
Publikováno v:
IEEE Access, Vol 10, Pp 52258-52272 (2022)
Hyperspectral remote sensing is a reliable solution for monitoring heavy metal pollution in crops. However, there are few studies on the spectral transformation and estimation of heavy metal content in crops using time-frequency analysis. In this stu
Externí odkaz:
https://doaj.org/article/a3e08079e59540f888b37230cd6c4159
Publikováno v:
Results in Physics, Vol 40, Iss , Pp 105815- (2022)
Here we theoretically investigate the cooperative effects between plasmonic nanoantennas mediated by whispering gallery modes (WGMs) of wavelength-scale dielectric resonators. Strong constructive cooperative effects can be obtained which lead to sign
Externí odkaz:
https://doaj.org/article/a245cc8e061d407d9e5de2946f8e665f
Autor:
Yang Cheng, Yu Lu, Qing Yang, Jun Zhong, Mengchen Xu, Xiaodan Gou, Lin Kai, Xun Hou, Feng Chen
Publikováno v:
Nanomaterials, Vol 12, Iss 24, p 4378 (2022)
The preparation of the wavelength-scale micropores on metallic surfaces is limited by the high opacity of metal. At present, most micropores reported in the literature are more than 20 µm in diameter, which is not only large in size, but renders the
Externí odkaz:
https://doaj.org/article/6e5a34b4788649a090db70b3d64d137a
Akademický článek
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Autor:
Abdellatif Cherifi, Benamar Bouhafs
Publikováno v:
Photonic Sensors, Vol 7, Iss 3, Pp 199-205 (2017)
Abstract Recently, the subject on “plasmonics” has received significant attention in designing surface plasmon resonance (SPR) sensors. In order to achieve extremely high-sensitivity sensing, multilayered configurations based on a variety of acti
Externí odkaz:
https://doaj.org/article/60c682341fda43c8a468099d43a3a001
Publikováno v:
GEOPHYSICS. 87:V117-V129
Diffraction images can be used for modeling reservoir heterogeneities at or below the seismic wavelength scale. However, the extraction of diffractions is challenging because their amplitude is weaker than that of overlapping reflections. Recently, d
Autor:
Miriam J. Leonhardt, Melissa Tacy
Publikováno v:
Journal of the Australian Mathematical Society. 114:222-252
In this paper we study the small-scale equidistribution property of random waves whose coefficients are determined by an unfair coin. That is, the coefficients take value $+1$ with probability p and $-1$ with probability $1-p$ . Random waves whose co
Publikováno v:
Nanophotonics. 11:787-795
Structuring light–matter interaction at a deeply subwavelength scale is fundamental to optical metamaterials and metasurfaces. Conventionally, the operation of a metasurface is determined by the collective electric polarization response of its lith