AN EFFECTIVE METHOD FOR DESIGNING BINARY OPTICAL DIFFRACTIVE ELEMENTS | Zendy

Yansong Chen | Zendy; LI DE-HUA | Zendy

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AN EFFECTIVE METHOD FOR DESIGNING BINARY OPTICAL DIFFRACTIVE ELEMENTS

Author(s) -

Yansong Chen,

LI DE-HUA

Publication year - 1996

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.45.1331

Subject(s) - materials science , optics , diffraction , rectangle , photolithography , binary number , laser , beam (structure) , optoelectronics , physics , mathematics , geometry , arithmetic

Based on the principle of Fresnel diffraction and Gerchberg-Saxton algorithm, an effective method for designing binary optical diffractive elements (BODE) is presented. The objective light distribution, generated by a BODE designed by this method, is not sensitive to laser mode. A BODE, used in quenching treatment of CO2 laser, was designed and fabricated by photolithography and ion etching techniques. The element could transform a CO2 laser beam into rectangle beam shape with dimensions 12 mm×2 mm. The experimental results are satisfactory for the quenching treatment .

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