Results 31 to 40 of about 5,111 (331)
Astronomical Quantum Optics with Extremely Large Telescopes [PDF]
, 2006 Modern optics focuses on photonics and quantum optics, studying individual photons, and statistics of photon streams. Those can be complex and carry information beyond that recorded by imaging, spectroscopy, polarimetry, or interferometry. Since [almost]
H. UTHAS +17 more
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Technologies for Astronomical Wide-Field Adaptive Optics [PDF]
, 2010 Adaptive Optics (AO) can greatly enhance the resolution of astronomical images, achieving close to diffraction-limited performance in the near infrared; however there are a number of areas where significant improvements can be made, one of them being the
Christian Dani Guzmán
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Astronomical demonstration of an optical vortex coronagraph
Optics Express, 2008 Using an optical vortex coronagraph and simple adaptive optics techniques, we have made the first convincing demonstration of an optical vortex coronagraph that is coupled to a star gazing telescope. We suppressed by 97% the primary star of a resolvable binary system, Cor Caroli. The stars had an angular separation of 1.9lambda/D at our imaging camera.
Grover A, Swartzlander +6 more
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Astronomical optics and elasticity theory [PDF]
, 2008 Astronomical Optics and Elasticity Theory provides a very thorough and comprehensive account of what is known in this field. After an extensive introduction to optics and elasticity, the book discusses variable curvature and multimode deformable mirrors,
Lemaitre, Gerard Rene
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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 +4 more
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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 +5 more
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Integrated optics for astronomical interferometry [PDF]
, 2011 International audienceIntegrated optics is a well established technology that finds its main applications in the fields of optical communication and sensing.
Marques, P.V.S. +4 more
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Comparison of beam combiners for a synthetic aperture imaging telescope [PDF]
Journal of the European Optical Society-Rapid Publications, 2006 Future astronomical space missions will comprise a constellation of several optical telescopes to detect exo-planets by interferometric nulling of starlight.
van der Avoort Casper +3 more
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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 +8 more
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