The Strehl ratio is a measure of the quality of optical image formation, originally proposed by Karl Strehl, after whom the term is named. Used variously...
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between M2, power-in-the-bucket, and Strehl ratio. The Strehl ratio, for example, has been defined as the ratio of the peak focal intensities in the aberrated...
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distribution is required. An example is laser surgery. Power-in-the-bucket and Strehl ratio are two other attempts to define beam quality. Both these methods use...
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largest monolithic, or non-segmented, mirror in an optical telescope. Strehl ratios of 60–90% in the infrared H band and 95% in the infrared M band have...
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guide star (bright) to deliver diffraction limited, high Strehl ratio images (>75 % Strehl in the K band) at wavelengths from 0.6 μm into the mid-infrared...
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Wilhelm Andreas Strehl (April 30, 1864 – June 14, 1940) was a German physicist, mathematician, and writer. He is notable for the Strehl ratio, a widely used...
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aligned images according to the image centroid, giving a lower overall Strehl ratio. In 1970, the French astronomer Antoine Labeyrie showed that Fourier...
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Newton's rings Optical unit Point spread function Debye-Scherrer ring Strehl ratio Speckle pattern Herschel, J. F. W. (1828). "Light". Transactions Treatises...
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beam is M times the embedded Gaussian beam waist. Laser beam profiler Strehl ratio Siegman, A. E. (October 1997). "How to (Maybe) Measure Laser Beam Quality"...
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whose Fourier transform is the optical transfer function. From this, the Strehl ratio can also be calculated. The other special case to consider is that of...
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temperature difference Optical resolution Signal-to-noise ratio Signal transfer function Strehl ratio Transfer function Wavefront coding The exact definition...
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as SPHERE on the ESO VLT and GPI on the Gemini telescope, achieve a Strehl ratio of 90% at a wavelength of 2.2 micrometers, but only within a very small...
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diffraction Fabrication and testing of optical components Null corrector Strehl ratio Texereau 1984 pp.68-70 section 2.25 Harbour 2008 p 39 Texereau 1984 p...
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025 arcsec Spatial resolution at 0.75 μm (median seeing) 0.042 arcsec Strehl ratio at 0.75 μm 5% (10% goal) Limiting magnitude in 1h RAB = 22.3 Limiting...
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routinely uses the ALTAIR system, built in Canada, which achieves a 30–45% Strehl ratio on a 22.5-arcsecond-square field and can feed NIRI, NIFS or GNIRS; it...
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various metrics, including encircled energy, modulation transfer function, Strehl ratio, ghost reflection control, and pupil performance (size, location and...
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design of the Large Binocular Telescope, which achieved record breaking Strehl ratios with its AO system in 2010. From 2004 to 2010, approximately 8% of MMT...
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is to study Solar System objects at high spatial resolution and high Strehl ratio. Asteroids and their moons, the satellites of Jupiter and Saturn, and...
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monochromatic light Exposure time is shorter than the timescale of aberrations Strehl ratio is high (good adaptive optics) Linearity of the pixel response (i.e....
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Am. A 15, 2759–2768 (1998). H. Yura and D. Fried, "Variance of the Strehl ratio of an adaptive optics system," J. Opt. Soc. Am. A 15, 2107–2110 (1998)...
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(Borussia Dortmund) 19 goals Christian Müller (1. FC Köln) 15 goals Heinz Strehl (1. FC Nürnberg) 14 goals Franz Brungs (Borussia Dortmund) Uwe Seeler (Hamburger...
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called lucky imaging. Many methods exist for image selection, including the Strehl-selection method first suggested by John E. Baldwin from the Cambridge group...
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PMC 4025987. PMID 24245813. Van Doren J, Arns M, Heinrich H, Vollebregt MA, Strehl U, K Loo S (March 2019). "Sustained effects of neurofeedback in ADHD: a...
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Rot-Weiss Essen Willi Lippens 79 172 0.46 1966 1976 17 1. FC Nürnberg Heinz Strehl 76 174 0.44 1963 1969 18 Hannover 96 Hans Siemensmeyer 72 278 0.26 1965...
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Leupold, Dieter Nüssing, Marc Oechler, Luitpold Popp, Raphael Schäfer, Heinz Strehl, Heinrich Stuhlfauth, Horst Weyerich, Sergio Zárate As of 24 May 2021 Numbers...
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Ferenc Puskás Real Madrid 12 1960–61 José Águas Benfica 11 1961–62 Heinz Strehl 1. FC Nürnberg 8 Alfredo Di Stéfano Real Madrid Justo Tejada Real Madrid...
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Ohlhauser (Bayern Munich) 18 goals Lothar Emmerich (Borussia Dortmund) Heinz Strehl (1. FC Nürnberg) 17 goals Horst Köppel (VfB Stuttgart) 16 goals Rainer Budde...
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International Studies. Sherlin LH, Arns M, Lubar J, Heinrich H, Kerson C, Strehl U, Sterman MB (October 2011). "Neurofeedback and Basic Learning Theory:...
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PMID 34696417. von Lilienfeld-Toal M, Nattermann J, Feldmann G, Sievers E, Frank S, Strehl J, Schmidt-Wolf IG (June 2006). "Activated gammadelta T cells express the...
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Intelligent Laboratory Systems. 160: 59–71. doi:10.1016/j.chemolab.2016.11.012. Strehl, Alexander; Ghosh, Joydeep (2003). "Cluster Ensembles – A Knowledge Reuse...
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