A simple optical device for generating square flat-top intensity irradiation from a gaussian laser beam |
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| Authors: | Y Kawamura Y Itagaki K Toyoda S Namba |
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| Institution: | The Institute of Physical and Chemical Research, Wako-shi, Saitama, 351 Japan |
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| Abstract: | A simple optical device, by which a square flat-top intensity irradiation area can be produced from a laser beam having a gaussian profile, is developed. Calculated nonuniformity (Imax-Imin)/(Imax+Imin)×100] and the efficiency of this optical device (total energy irradiated in the square region/total energy of the gaussian beam) were 3% and 94%, respectively, for the best irradiation condition. |
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