Zobrazeno 1 - 10
of 128
pro vyhledávání: '"Lifa Hu"'
Publikováno v:
IEEE Photonics Journal, Vol 16, Iss 1, Pp 1-9 (2024)
Aiming at the propagation of asymmetric vortex beam, we investigate the spreading and wander characteristics of asymmetric Bessel-Gaussian beam in oceanic turbulence. Based on the cross-spectral density and Wigner distribution function of beam field,
Externí odkaz:
https://doaj.org/article/62c4d0ba183743f3a66802e84d4b4a1a
Publikováno v:
IEEE Photonics Journal, Vol 15, Iss 3, Pp 1-7 (2023)
In some complex scene, such as military reconnaissance and other fields, the target object may be partially occluded by some opaque obstacles, which increase the difficulty to obtain the complete object image. In traditional optical imaging system, t
Externí odkaz:
https://doaj.org/article/d3ae2d1059ab425f9876fedf6a1c31a0
Publikováno v:
IEEE Photonics Journal, Vol 14, Iss 6, Pp 1-7 (2022)
As a special imaging technique, one of the most important advantages of single-pixel imaging (SPI) than conventional imaging method is that it can recover the object image even through turbid medium. In these situations, the noises bring by the turbi
Externí odkaz:
https://doaj.org/article/681fe4906912487fb166883228b62227
Publikováno v:
Photonics, Vol 10, Iss 3, p 322 (2023)
To overcome the atmospheric turbulence aberration, and improve the quality of light beam in visible light communication (VLC), a compact 69-element deformable mirror (DM) using micro voice coil actuators was designed based on systematic theoretical a
Externí odkaz:
https://doaj.org/article/205a18aba52c4a7eb86ee6103107bbdf
Publikováno v:
Sensors, Vol 22, Iss 17, p 6407 (2022)
The novel concept of local climate zones (LCZs) provides a consistent classification framework for studies of the urban thermal environment. However, the development of urban climate science is severely hampered by the lack of high-resolution data to
Externí odkaz:
https://doaj.org/article/1bbb127812ff4911b174c0164a66384f
Publikováno v:
Buildings, Vol 12, Iss 7, p 871 (2022)
Park accessibility plays a critical role in evaluating the quality of park construction. However, the conventional accessibility model ignores non-spatial factors, so it is crucial to use more complex methods for evaluating park accessibility. This s
Externí odkaz:
https://doaj.org/article/1b91db8f59724cc6a7bcf022325f7613
Autor:
Lan Wang, Guilin Liu, Xi Xi, Guofeng Yang, Lifa Hu, Bingjie Zhu, Yifeng He, Yushen Liu, Hongqiang Qian, Shude Zhang, Huachao Zai
Publikováno v:
Crystals, Vol 12, Iss 7, p 894 (2022)
Perovskite solar cells (PSCs) are a promising and fast-growing type of photovoltaic cell due to their low cost and high conversion efficiency. The high efficiency of PSCs is closely related to the quality of the photosensitive layer, and the high-qua
Externí odkaz:
https://doaj.org/article/2ff5085f063c4ca3bd6b8cf3b1d01b0b
Publikováno v:
Results in Physics, Vol 15, Iss , Pp - (2019)
Frozen waves have the good characteristic for resisting the diffraction and absorption in absorbing medium, which can solve the low transmittance of light waves in seawater. By the turbulence spectrum of seawater and the theory of frozen waves, we de
Externí odkaz:
https://doaj.org/article/da401f53496848c8b2eb0300eec62ba9
Publikováno v:
Heliyon, Vol 5, Iss 3, Pp e01442- (2019)
This paper gives the design of electromagnetically induced transparency effect using two U-shaped resonators with different opening directions (same direction and opposite direction). It is revealed that extremely similar transparency effect can be f
Externí odkaz:
https://doaj.org/article/d0b7d7521b354fafa70bcfdc9887f38e
Publikováno v:
Waves in Random and Complex Media. :1-21