Zobrazeno 1 - 10
of 744
pro vyhledávání: '"Wang, Shubo"'
Directional optical sources can give rise to the directional excitation and propagation of light. The directionality of the conventional directional dipole (CDD) sources are attributed to the interference of the electric and/or magnetic dipoles, whil
Externí odkaz:
http://arxiv.org/abs/2409.01526
Common wisdom believes that the Pancharatnam-Berry (PB) geometric phase is absent in acoustics due to the spin-0 nature of sound waves. We theoretically and experimentally demonstrate that the PB phase can emerge in surface sound waves (SSWs) carryin
Externí odkaz:
http://arxiv.org/abs/2408.03513
Autor:
Bozo, Eva, Xin, Pei-Lin, Zhao, Yingqi, Yaltaye, Mulusew W., Hubarevich, Aliaksandr, Pankratova, Viktorija, Wang, Shubo, Huang, Jian-An
Single-molecule surface-enhanced Raman spectroscopy based on a particle trapped in a plasmonic nanopores provides a unique method for continued and controlled detection of peptide and DNA oligonucleotides in liquid medium. However, the Brownian motio
Externí odkaz:
http://arxiv.org/abs/2407.19045
Electric dark spots are point singularities at which the electric field amplitude vanishes. These singularities usually emerge in real space accidentally and are unstable due to the vectorial property of the electric field. In this paper, we show tha
Externí odkaz:
http://arxiv.org/abs/2407.16213
Autor:
Zhang, Chengzhi, Wang, Shubo
Exceptional points (EPs) in non-Hermitian systems can give rise to intriguing effects not available in conventional Hermitian systems due to their unusual properties. Using full-wave simulations, we investigate the scattering, absorption, and transmi
Externí odkaz:
http://arxiv.org/abs/2402.06686
Autor:
Xiao, Wanyue, Wang, Shubo
Pancharatnam-Berry (PB) metasurfaces can be applied to manipulate the phase and polarization of light within subwavelength thickness. The underlying mechanism is attributed to the geometric phase originating from the longitudinal spin of light. Here,
Externí odkaz:
http://arxiv.org/abs/2402.03650
Optical metasurfaces have been widely used for manipulating electromagnetic waves due to their low intrinsic loss and easy fabrication. The metasurfaces employing the Pancharatnam-Berry (PB) geometric phase, called PB metasurfaces, have been extensiv
Externí odkaz:
http://arxiv.org/abs/2401.10772
Autor:
Tong, Qing, Wang, Shubo
Artificial structures have been widely used to manipulate sound fields. Most properties of these structures derive from the material and geometry. Few are explicitly related to the structural topology in the real space. Here, we discover a fundamenta
Externí odkaz:
http://arxiv.org/abs/2312.12283
The Chern number has been widely used to describe the topological properties of periodic structures in the momentum space. Here, we introduce a real-space spin Chern number for the optical near fields of finite-sized structures. This new spin Chern n
Externí odkaz:
http://arxiv.org/abs/2312.11771