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Semiconductor Physics, Quantum Electronics & Optoelectronics. 2009. V. 12, N 3. P. 280-283.
Energy loss researches of diamond microgrinded laser mirrors
by Fourier optics methods
Taras Shevchenko Kyiv National University, Department of Physics,
6, prospect Glushkova, 03127 Kyiv, Ukraine;
E-mail: stu@univ.kiev.ua; filipov@univ.kiev.ua
Abstract. The diffraction losses of laser mirrors were determined by using specially
designed spectrometer of spatial frequencies. Reflection surface (70 mm diameter) was
made by diamond microgrinding, but instead of an ideal plane, the circular phase grating
was formed. The Fourier-optics was applied to measure a real shape of flat laser metal
mirrors. We analysed the diffraction pattern of light reflected from metal mirror in the
Fraunhofer zone and determined periodic deviation of a surface from an ideal plane and
its parameter – spatial frequency.
Keywords: metal mirror for laser, energy losses, Fourier-optics method, circular phase
grating, spatial frequency.
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