Results 31 to 40 of about 368,356 (303)

Three-Dimensional Manipulation for Self-Focusing Behavior via the State of Polarization

Frontiers in Physics, 2022
In this work, the controllable self-focusing behavior is first investigated by manipulating the state of polarization (SoP), that is, the phase difference between two polarized components at the initial optical field, which can be used to realize the ...
Lu Lu, Zhiqiang Wang, Zhiqiang Wang, Rong Lin, Yangjian Cai, Yangjian Cai   +5 more
doaj   +1 more source

The Durham Adaptive Optics Simulation Platform (DASP): Current status

SoftwareX, 2018
The Durham Adaptive Optics Simulation Platform (DASP) is a Monte-Carlo modelling tool used for the simulation of astronomical and solar adaptive optics systems.
A.G. Basden, N.A. Bharmal, D. Jenkins, T.J. Morris, J. Osborn, J. Peng, L. Staykov   +6 more
doaj   +1 more source

Task performance in astronomical adaptive optics [PDF]

SPIE Proceedings, 2006
In objective or task-based assessment of image quality, figures of merit are defined by the performance of some specific observer on some task of scientific interest. This methodology is well established in medical imaging but is just beginning to be applied in astronomy.
Harrison H, Barrett, Kyle J, Myers, Nicholas, Devaney, J C, Dainty, Luca, Caucci   +4 more
openaire   +2 more sources

The numerical simulation tool for the MAORY multiconjugate adaptive optics system [PDF]

, 2016
The Multiconjugate Adaptive Optics RelaY (MAORY) is and Adaptive Optics module to be mounted on the ESO European-Extremely Large Telescope (E-ELT).
Agapito, Guido, Arcidiacono, Carmelo, Bregoli, Giovanni, Butler, Chris R., Ciliegi, Paolo, Cortecchia, Fausto, Cosentino, Giuseppe, Diolaiti, Emiliano, Esposito, Simone, Feautrier, Philippe, Foppiani, Italo, Lombini, Matteo, Oberti, Sylvain, Patti, Mauro, Puglisi, Alfio, Schreiber, Laura, Xompero, Marco   +16 more
core   +2 more sources

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
openaire   +3 more sources

Astronomical Applications of Multi-Core Fiber Technology [PDF]

, 2020
Optical fibers have altered astronomical instrument design by allowing for a complex, often large instrument to be mounted in a remote and stable location with respect to the telescope.
Cvetojevic, Nick, Harris, Robert J., Jovanovic, Nemanja   +2 more
core   +2 more sources

Research on the Time Drift Stability of Differential Inductive Displacement Sensors with Frequency Output

Sensors, 2022
An edge displacement sensor is one of the key technologies for building large segmented mirror astronomical optical telescopes. A digital interface is one novel approach for sensor technologies, digital transformation and the Internet of Things (IoT) in ...
Xiaolong Lu, Guiyun Tian, Zongwen Wang, Wentao Li, Dehua Yang, Haoran Li, You Wang, Jijun Ni, Yong Zhang   +8 more
doaj   +1 more source

Wavefront sensing of atmospheric phase distortions at the Palomar 200-in. telescope and implications for adaptive optics [PDF]

, 1997
Major efforts in astronomical instrumentation are now being made to apply the techniques of adaptive optics to the correction of phase distortions induced by the turbulent atmosphere and by quasi-static aberrations in telescopes themselves.
Bloemhof, E. E., Ewald, S. P., Westphal, J. A.   +2 more
core   +1 more source

Astronomical x-ray optics using mono-crystalline silicon: high resolution, light weight, and low cost

Astronomical Telescopes + Instrumentation, 2018
X-ray astronomy critically depends on X-ray optics. The capability of an X-ray telescope is largely determined by the point-spread function (PSF) and the photon-collection area of its mirrors, the same as telescopes in other wavelength bands.
Will Zhang, Kim D. Allgood, M. Biskach, Kai-wing Chan, M. Hlinka, J. Kearney, J. Mazzarella, R. Mcclelland, Ai Numata, R. Riveros, T. Saha, Peter M. Solly   +11 more
semanticscholar   +1 more source

Searching for Exoplanets Using a Microresonator Astrocomb [PDF]

, 2018
Detection of weak radial velocity shifts of host stars induced by orbiting planets is an important technique for discovering and characterizing planets beyond our solar system.
A Dutt, AG Glenday, B Stern, C Huang, C Joshi, C. Beichman, CH Blake, CH Li, D Cole, D. Mawet, DA Braje, DJ Jones, DR Carlson, DT Spencer, Emily C. Martin, ES Lamb, F Leo, F Pepe, G. Doppmann, G. Vasisht, H Lee, H Murata, IS Grudinin, IS McLean, Ivan S. Grudinin, J. Wang, JF Kasting, K Beha, Kerry Vahala, M Cai, M Lezius, MG Suh, MG Suh, Michael P. Fitzgerald, MT Murphy, Myoung-Gyun Suh, N Pavlov, P Del’Haye, P Marin-Palomo, P Trocha, PH Wang, RA McCracken, S Spillane, S Wabnitz, S. Leifer, SA Diddams, Scott A. Diddams, Scott B. Papp, T Herr, T Kippenberg, T Steinmetz, T Wilken, TJ Kippenberg, V Brasch, X Yi, X Yi, Xu Yi, YK Feng, Yu-Hung Lai   +58 more
core   +3 more sources