Zobrazeno 1 - 10
of 7 412
pro vyhledávání: '"Deformable mirror"'
Autor:
Ruitao Wang, Youming Guo, Nanfei Yan, Ying Yang, Lanqiang Zhang, Qiong Tu, Lingxiao Li, Changhui Rao
Publikováno v:
IEEE Photonics Journal, Vol 16, Iss 3, Pp 1-6 (2024)
In the adaptive optics system of astronomical observation, the deformable mirror and the tip/tilt mirror are coupled during the correction process. However, due to the limited sensitivity of the Shack-Hartmann wavefront sensor in detecting piston abe
Externí odkaz:
https://doaj.org/article/ff167ad9b22243d6b6bdd4f54590bc14
Publikováno v:
Journal of Synchrotron Radiation, Vol 31, Iss 1, Pp 10-16 (2024)
X-ray mirrors for synchrotron radiation are often bent into a curved figure and work under grazing-incidence conditions due to the strong penetrating nature of X-rays to most materials. Mirrors of different cross sections have been recommended to red
Externí odkaz:
https://doaj.org/article/27aa4145cfb04a10b2f2b5e7180e94b7
Akademický článek
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Publikováno v:
Micromachines, Vol 15, Iss 4, p 539 (2024)
This study presents a numerical simulation-based investigation of a MEMS (micro-electromechanical systems)technology-based deformable mirror employing a piezoelectric film for fundus examination in adaptive optics. Compared to the classical equal-are
Externí odkaz:
https://doaj.org/article/4e1ece00e90440ab8435c61dbb4a6bbd
Publikováno v:
Photonics, Vol 10, Iss 10, p 1147 (2023)
Atmospheric turbulence causes refractive index fluctuations, which in turn introduce extra distortions to the wavefront of the propagated radiation. It ultimately degrades telescope resolution (in imaging applications) and reduces radiation power den
Externí odkaz:
https://doaj.org/article/b18ef324778f43c2818412c0fe77274b
Publikováno v:
Frontiers in Physics, Vol 11 (2023)
Helicity and topological charge are two important characteristic parameters for vortex beam applications, including optical communications, optical manipulation and material processing, etc. In this work, a helicity and topological charge tunable vor
Externí odkaz:
https://doaj.org/article/5306a4b6b4a94c299dacc5a3280e2977
Autor:
Huizhen Yang, Xiangdong Zang, Peng Chen, Xingliu Hu, Yongqiang Miao, Zhaojun Yan, Zhiguang Zhang
Publikováno v:
Photonics, Vol 11, Iss 1, p 29 (2023)
The correction of wavefront aberrations in wavefront sensorless (WFS-less) adaptive optical (AO) systems requires control algorithms that can ensure rapid convergence while maintaining effective correction capabilities. This paper proposes a novel co
Externí odkaz:
https://doaj.org/article/1a58e144c34f48bb925a0449af885d41
Autor:
Bo Li, Dapeng Tian
Publikováno v:
Photonics, Vol 10, Iss 10, p 1136 (2023)
In a photoelectric tracking system, a deformable mirror can be used to adjust the transmission path of a light beam to achieve accurate measurement and tracking of the target position. The single-piezoelectric-sheet deformable mirror is a commonly us
Externí odkaz:
https://doaj.org/article/e86dd46251af4a7e8a48c3e5a4b29309