Results 11 to 20 of about 1,371,529 (165)
Speckle Space–Time Covariance in High-contrast Imaging
The Astronomical Journal, 2023 We introduce a new framework for point-spread function subtraction based on the spatiotemporal variation of speckle noise in high-contrast imaging data where the sampling timescale is faster than the speckle evolution timescale.
Briley Lewis +4 more
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High-contrast imaging with METIS [PDF]
SPIE Proceedings, 2016 The Mid-infrared E-ELT Imager and Spectrograph (METIS) for the European Extremely Large Telescope (E-ELT) consists of diffraction-limited imagers that cover 3 to 14 microns with medium resolution (R ~ 5000) long slit spectroscopy, and an integral field spectrograph for high spectral resolution spectroscopy (R ~ 100,000) over the L and M bands.
Kenworthy, Matthew A. +7 more
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High contrast and high angular imaging at Subaru Telescope
Adaptive Optics Systems VIII, 2022 11 pages, to appear in SPIE Proceedings of Astronomical Telescopes + Instrumentation ...
Guyon, Olivier +12 more
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High-contrast imaging testbed [PDF]
SPIE Proceedings, 2008 Several high-contrast imaging systems are currently under construction to enable the detection of extra-solar planets. In order for these systems to achieve their objectives, however, there is considerable developmental work and testing which must take place.
K. L. Baker +7 more
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Fast-cadence High-contrast Imaging with Information Field Theory
The Astronomical Journal, 2023 Although many exoplanets have been indirectly detected in recent years, direct imaging of them with ground-based telescopes remains challenging. In the presence of atmospheric fluctuations, it is ambitious to resolve the high brightness contrasts at the ...
J. Roth +4 more
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High-resolution Z-contrast imaging of crystals [PDF]
Ultramicroscopy, 1991 Abstract The use of a high-angle annular detector in a scanning transmission electron microscope is shown to provide incoherent images of crystalline materials with strong compositional sensitivity. How this occurs, even in the presence of strong dynamical diffraction of the low-angle beams, becomes very clear in a Bloch wave description of the ...
Pennycook, S. J., Jesson, D. E.
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Light: Science & Applications, 2023 Scanning near-field optical microscopy (SNOM) offers a means to reach a fine spatial resolution down to ~ 10 nm, but unfortunately suffers from low transmission efficiency of optical signal. Here we present design and 3D printing of a fiber-bound polymer-
Li Long +4 more
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Wind-driven halo in high-contrast images. [PDF]
Astronomy & Astrophysics, 2020 Context. The wind-driven halo is a feature that is observed in images that were delivered by the latest generation of ground-based instruments that are equipped with an extreme adaptive optics system and a coronagraphic device, such as SPHERE at the Very Large Telescope (VLT).
Cantalloube, F. +11 more
openaire +2 more sources
VIP: A Python package for high-contrast imaging
Journal of Open Source Software, 2023 International ...
Christiaens, Valentin +15 more
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Polarity‐triggered anti‐Kasha system for high‐contrast cell imaging and classification
Aggregate, 2023 Kasha's rule, which states that all exciton emissions occur from the lowest excited state and are independent of excitation energy, makes high‐energy excitons difficult to use and severely hinders the widespread applications of organic photoluminescent ...
Junyi Gong +11 more
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