Phase diffractive optical gratings on glass substrates by laser ablation |
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| Authors: | MT Flores-Arias C Gomez-Reino |
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| Institution: | a GRIN Optics Group, Applied Physics Department, Escola Universitaria de Optica e Optometría, Campus Sur s/n, E15782 Santiago de Compostela, Spain
b Instituto de Ciencia de Materiales de Aragón (U. Zaragoza-CSIC), Ma de Luna 3, E50018 Zaragoza, Spain |
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| Abstract: | A novel and rapid laser ablation method for the fabrication of phase diffractive gratings in low-cost glass substrates is presented. The structures are characterized in terms of their shape and physical parameters by confocal microscopy and SEM microscopy. The first-order diffraction efficiency at normal incidence under 632.8 nm wavelength is shown. The influence of the overlap factor on the period grating is studied. |
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| Keywords: | 42 25 Fx 42 62 &minus b 42 70 Ce 42 79 Dj |
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