Design of High-Efficiency Diffraction Gratings Based on Rigorous Coupled-Wave Analysis for 800nm Wavelength
KONG Wei-Jin1, YUN Mao-Jin1, LIU Shi-Jie2, JIN Yun-Xia2, FAN Zheng-Xiu2, SHAO Jian-Da2
1College of Physics Science, Qingdao University, Qingdao 2660712Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800
Design of High-Efficiency Diffraction Gratings Based on Rigorous Coupled-Wave Analysis for 800nm Wavelength
KONG Wei-Jin1;YUN Mao-Jin1;LIU Shi-Jie2;JIN Yun-Xia2;FAN Zheng-Xiu2;SHAO Jian-Da2
1College of Physics Science, Qingdao University, Qingdao 2660712Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800
摘要We report on the design of a high diffraction efficiency multi-layer dielectric grating with wide incident angle and broad bandwidth for 800nm. The optimized grating can achieve >95% diffraction efficiency in the first order at an incident angle of 5° from Littrow and a wavelength from 770nm to 830nm, with peak diffraction efficiency of >99.5% at 800nm. The electric field distribution of the optimized multi-layer dielectric grating within the gratings ridge is 1.3 times enhancement of the incidence light, which presents potential high laser resistance ability. Because of its high-efficiency, wide incident, broad bandwidth and potential high resistance ability, the multi-layer dielectric grating should have practical application in Ti:sapphire laser systems.
Abstract：We report on the design of a high diffraction efficiency multi-layer dielectric grating with wide incident angle and broad bandwidth for 800nm. The optimized grating can achieve >95% diffraction efficiency in the first order at an incident angle of 5° from Littrow and a wavelength from 770nm to 830nm, with peak diffraction efficiency of >99.5% at 800nm. The electric field distribution of the optimized multi-layer dielectric grating within the gratings ridge is 1.3 times enhancement of the incidence light, which presents potential high laser resistance ability. Because of its high-efficiency, wide incident, broad bandwidth and potential high resistance ability, the multi-layer dielectric grating should have practical application in Ti:sapphire laser systems.
(Optical properties of bulk materials and thin films)
引用本文:
KONG Wei-Jin;YUN Mao-Jin;LIU Shi-Jie;JIN Yun-Xia;FAN Zheng-Xiu;SHAO Jian-Da. Design of High-Efficiency Diffraction Gratings Based on Rigorous Coupled-Wave Analysis for 800nm Wavelength[J]. 中国物理快报, 2008, 25(5): 1684-1686.
KONG Wei-Jin, YUN Mao-Jin, LIU Shi-Jie, JIN Yun-Xia, FAN Zheng-Xiu, SHAO Jian-Da. Design of High-Efficiency Diffraction Gratings Based on Rigorous Coupled-Wave Analysis for 800nm Wavelength. Chin. Phys. Lett., 2008, 25(5): 1684-1686.
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