Zobrazeno 1 - 10
of 259
pro vyhledávání: '"Shengjiang Chang"'
Publikováno v:
PhotoniX, Vol 5, Iss 1, Pp 1-22 (2024)
Abstract The molecular fingerprint sensing technology based on metasurface has unique attraction in the biomedical field. However, in the terahertz (THz) band, existing metasurface designs based on multi-pixel or angle multiplexing usually require mo
Externí odkaz:
https://doaj.org/article/408cdae6ce414416881b3ef4c5698f43
Publikováno v:
APL Photonics, Vol 8, Iss 9, Pp 096112-096112-10 (2023)
Ultra-compact and tunable devices for terahertz (THz) beam manipulation are highly desired in wireless communication and radar scanning. Although the appearance of the Pancharatnam-Berry (PB) metasurface has provided strategies for THz beam scanning,
Externí odkaz:
https://doaj.org/article/92b3b47a50ae441486defde774fdf307
Publikováno v:
Advanced Science, Vol 10, Iss 4, Pp n/a-n/a (2023)
Abstract In this work, the gyrotropic semiconductor InSb into the twisted bilayer metasurface to form a magneto‐optical moiré metasurface is introduced. Through the theoretical analysis, the “moiré angle” is developed in which case the nonrec
Externí odkaz:
https://doaj.org/article/37618484704b4954b9122fc6084bb349
Publikováno v:
PLoS ONE, Vol 18, Iss 2, p e0279248 (2023)
Marine ships are the transport vehicle in the ocean and instance segmentation of marine ships is an accurate and efficient analysis approach to achieve a quantitative understanding of marine ships, for example, their relative locations to other ships
Externí odkaz:
https://doaj.org/article/37d24ca4900342a5b875febf7e4ca73e
Publikováno v:
Remote Sensing, Vol 14, Iss 24, p 6312 (2022)
In the remote sensing field, synthetic aperture radar (SAR) is a type of active microwave imaging sensor working in all-weather and all-day conditions, providing high-resolution SAR images of objects such as marine ships. Detection and instance segme
Externí odkaz:
https://doaj.org/article/0323030ce8964fa191b0d721744e1527
Publikováno v:
Micromachines, Vol 13, Iss 10, p 1637 (2022)
Terahertz (THz) technology offers unparalleled opportunities in a wide variety of applications, ranging from imaging and spectroscopy to communications and quality control, where lack of efficient modulation devices poses a major bottleneck. Spatial
Externí odkaz:
https://doaj.org/article/db3f6a20f6bd4bfaa035eb3058ba6591
Publikováno v:
Frontiers in Physics, Vol 8 (2020)
A terahertz isolator is demonstrated for the THz nonreciprocal reflections in the magneto-optical microstructure composed of InSb and metasurface with a dielectric interlayer. In the Voigt magnetic field configuration, the reflectance of the p-polari
Externí odkaz:
https://doaj.org/article/d363439f60cf454fb6e88d96c8bfe4e3
Publikováno v:
IET Computer Vision, Vol 12, Iss 4, Pp 453-457 (2018)
Feature point detection based on convolutional neural network (CNN) has been studied widely. The effective approaches for improving detection accuracy are building a deeper network or using a multi‐network cascade structure. However, some potential
Externí odkaz:
https://doaj.org/article/4d0ead4fa394451a9f5e9385af55dc52
Autor:
Weinan Shi, Fei Fan, Ziyang Zhang, Tianrui Zhang, Shanshan Li, Xianghui Wang, Shengjiang Chang
Publikováno v:
Applied Sciences, Vol 11, Iss 19, p 8892 (2021)
A terahertz (THz) all-dielectric metasurface with crescent cylinder arrays for chiral drug sensing has been demonstrated. Through the multipole expansion method, we theoretically found that breaking the symmetry of the metasurface can excite higher-o
Externí odkaz:
https://doaj.org/article/59b899fcced34ee9976ae65eaf0da36c
Publikováno v:
Micromachines, Vol 12, Iss 3, p 333 (2021)
Based on the graphene floating gate, a tunable terahertz metamaterial absorber is proposed. Compared with the traditional graphene–dielectric–metal absorber, our absorber has the property of being non-volatile and capacity for anti-interference.
Externí odkaz:
https://doaj.org/article/1a27c418241146ff9aba7ae1cfba6910