Transcription of Marcos van Dam - Adaptive optics
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Marcos van Dam - Adaptive optics
Simulation of Adaptive optics SystemsMarcos van DamWhy simulate?!You don t have an AO system but want to do AOresearch.!Analyze performance of existing AO systems.!Predict the performance of different algorithmsand components.!Explore parameter space when designing much does it cost?!Single ground layer simulations require a desktopcomputer.!Multi-conjugate Adaptive optics with multipleguide stars and Fresnel propagation require optics SystemWave-front sensorControllerScience cameraDeformable mirrorTelescopeAtmosphereInternal aberrationsIntroduction!Atmosphere!Teles cope!Imaging camera!Tip/tilt and deformable mirrors!Shack-Hartmann, curvature and pyramid sensors.!Modeling and simulating dynamic behavior!Corrected and uncorrected !Phase screens"Power spectral density methods"Covariance methods!Time evolution: frozen flow!
Adaptive Optics System Wave-front sensor Controller Science camera Deformable mirror Telescope Atmosphere Internal aberrations
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