Pseudo speckle pattern generation device, pseudo speckle pattern generation method, observation device, and observation method
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United States of America Patent
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Jan 31, 2023
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Mar 26, 2018
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Apr 10, 2017
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Abstract
A pseudo speckle pattern generation apparatus includes a light source, a beam expander, and a spatial light modulator. The spatial light modulator has an intensity modulation distribution based on a pseudo speckle pattern calculated from a pseudo random number pattern and a correlation function, receives light output from the light source and increased in beam diameter by the beam expander, spatially modulates the received light according to the modulation distribution, and outputs modulated light.
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