Abstract
The diffraction of a narrow Gaussian beam of laser radiation on mutually perpendicular edges of crossed, superimposed sharp wedge-shaped blades (safety razors) has been studied. The diffraction pattern observed on a flat screen behind the blades comprises a very bright central spot, which exhibits the structure of a “light network” with rectangular cells, and four groups of narrow bright bands that expand from the central spot toward the periphery and form a rectangular cross. The spatial frequency of light-field modulation on the screen can be controlled by varying the distance from the blades to screen.
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Original Russian Text © Yu.V. Vasil’ev, A.V. Kozar’, A.V. Matyunin, 2011, published in Pis’ma v Zhurnal Tekhnicheskoi Fiziki, 2011, Vol. 37, No. 20, pp. 60–69.
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Vasil’ev, Y.V., Kozar’, A.V. & Matyunin, A.V. Secondary diffraction of diffracted Gaussian beam of laser radiation. Tech. Phys. Lett. 37, 970–973 (2011). https://doi.org/10.1134/S1063785011100294
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DOI: https://doi.org/10.1134/S1063785011100294