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wood prints abstract wood prints pattern wood prints interference wood prints interfere wood prints fringe wood prints modulation wood prints newton ring wood prints laser wood prints beam wood prints profile wood prints shape wood prints intensity wood prints power wood prints distribution wood prints screen wood prints

photographs abstract photos pattern photos interference photos interfere photos fringe photos modulation photos newton ring photos laser photos beam photos profile photos shape photos intensity photos power photos distribution photos screen photos

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Newton Rings is an interference pattern between a spherical and a plane wavefronts. Such wavefronts can be obtained in practice by reflecting a collimated beam from nearby spherical and plane surfaces. When observed in monochromatic light, the pattern is a series of concentric dark and light rings (fringes). Shown here are Newton Rings obtained by reflecting a semiconductor laser beam from a plano-convex lens as observed on a screen. Characteristic laser speckle pattern is apparent. The speckle results from light scattering by (microscopic) rough texture of the screen