Results 11 to 20 of about 574,892 (287)

Planar integrated optics and astronomical interferometry [PDF]

Comptes Rendus de l'Académie des Sciences - Series IV - Physics, 2001
Integrated optics (IO) is an optical technology that allows to reproduce optical circuits on a planar substrate. Since 1996, we have investigated the potentiality of IO in the framework of astronomical single mode interferometry. We review in this paper the principles of IO, the requirements for interferometry and the corresponding solutions offered by
Kern, Pierre, Berger, Jean-Philippe, Haguenauer, Pierre, Malbet, Fabien, Perraut, Karine   +4 more
core   +5 more sources

Integrated optics for astronomical interferometry [PDF]

Astronomy & Astrophysics, 2001
We present in this paper the astronomical validation of a new approach to interferometric starlight com- bination. Using integrated optics technologies developed by the telecommunication industry, we have implemented optical circuits on coin-size chips that combine two beams and provide simultaneous photometric calibration sig- nals.
J. P. Berger, P. Haguenauer, P. Kern, K. Perraut, F. Malbet, I. Schanen, M. Severi, R. Millan-Gabet, W. Traub   +8 more
openaire   +2 more sources

Integrated optics for astronomical interferometry [PDF]

Astronomy & Astrophysics, 2002
We report laboratory and on sky characterizations of planar integrated optics beam combiners in the K ([ 2.0 μ m; 2.4 μ m] ) and K' ([ 2.02 μ m; 2.30 μ m] ) bands. Because of the strong scientific interests of the K band, we have extended the integrated optics technologies available in the telecom range (i.e.
E. Laurent, K. Rousselet-Perraut, P. Benech, J. P. Berger, S. Gluck, P. Haguenauer, P. Kern, F. Malbet, I. Schanen-Duport   +8 more
openaire   +2 more sources

Drift Performance and Chromatic Thermal Response of a Temperature Stabilized Solid-etalon Calibrator

The Astronomical Journal, 2023
Etalon-based calibrators have rapidly gained popularity over the past decade in the field of high-precision radial velocity and high-resolution spectroscopy studies.
Liang Tang, Zhibo Hao, Huiqi Ye, Yang Zhai, Kai Zhang, Dong Xiao   +5 more
doaj   +1 more source

Design and Thermal Stability Analysis of Swing Micro-Mirror Structure for Gravitational Wave Observatory in Space

Machines, 2021
A kind of swing micro-mirror structure with high stability for gravitational wave observatory in space is proposed in this paper. As the key interface instrument in the gravitational wave observatory, the swing micro-mirror structure plays a very ...
Kunyao Zheng, Mingming Xu
doaj   +1 more source

Dispersion Characteristics of the Multi-mode Fiber-fed VIPA Spectrograph

The Astronomical Journal, 2023
A high-resolution ( ${ \mathcal R }\gt {10}^{5}$ ), multi-mode fiber-fed spectrograph on large telescopes with a reasonable size is desirable in astronomy.
Xiaoming Zhu, Dong Lin, Zhongnan Zhang, Xintong Xie, Jinping He   +4 more
doaj   +1 more source

Generalized large optics fabrication multiplexing

Journal of the European Optical Society-Rapid Publications, 2022
High precision astronomical optics are manufactured through deterministic computer controlled optical surfacing processes, such as subaperture small tool polishing, magnetorheological finishing, bonnet tool polishing, and ion beam figuring.
Kim Daewook, Ke Xiaolong, Pullen Weslin, Wang Tianyi, Choi Heejoo, Negi Vipender Singh, Huang Lei, Idir Mourad   +7 more
doaj   +1 more source

Disturbance Modelling for Minimum Variance Control in Adaptive Optics Systems Using Wavefront Sensor Sampled-Data

Sensors, 2021
Modern large telescopes are built based on the effectiveness of adaptive optics systems in mitigating the detrimental effects of wavefront distortions on astronomical images.
María Coronel, Rodrigo Carvajal, Pedro Escárate, Juan C. Agüero   +3 more
doaj   +1 more source

3D-integrated optics component for astronomical spectro-interferometry

, 2022
S.4556-4565We present the experimental characterization of a spectro-interferometry setup based on a laser-written three-dimensional integrated optics component.
Pertsch, Thomas, Saviauk, Allar, Minardi, Stefano, Nolte, Stefan, Dreisow, Felix   +4 more
core   +1 more source

Antarctic Survey Telescope 3-3: Overview, System Performance and Preliminary Observations at Yaoan, Yunnan

Universe, 2022
The third Antarctic Survey Telescope array instrument at Dome A in Antarctica, the AST3-3 telescope, has been in commissioning from March 2021. We deployed AST3-3 at the Yaoan astronomical station in Yunnan Province for an automatic time-domain survey ...
Tianrui Sun, Xiaoyan Li, Lei Hu, Kelai Meng, Zijian Han, Maokai Hu, Zhengyang Li, Haikun Wen, Fujia Du, Shihai Yang, Bozhong Gu, Xiangyan Yuan, Yun Li, Huihui Wang, Lei Liu, Zhenxi Zhu, Xuehai Huang, Chengming Lei, Lifan Wang, Xuefeng Wu   +19 more
doaj   +1 more source