本文關鍵詞：High-transmittivity non-periodic sub-wavelength high-contrast grating with large-angle beam-steering ability

  更多相關文章： steering grating numerically transmitted designing refractive Figure coordinates rigorous ordinary

【摘要】：We present a high-transmittivity non-periodic sub-wavelength high-contrast grating(HCG) with large-angle beam-steering ability for transmitted light. The phase front profile of transmitted light is a decisive factor to the beam-steering property of the HCG. By designing the structural parameters of the HCG, both beam steering and high transmittivity can be achieved. The properties of the beam steering and transmission are numerically studied with the finite element method. The results show that the transmittivity is up to 0.91 and the steering angle is 27.42° which is consistent with the theoretical 30°.
【作者單位】： State
【基金】：supported by the National Natural Science Foundation of China(Nos.61274044 and 61077049) the National Basic Research Program of China(No.2010CB327600) the Specialized Research Fund for the Doctoral Program of Higher Education of China(No.20130005130001) the Natural Science Foundation of Beijing,China(No.4132069) the 111 Project(No.B07005) the Program for New Century Excellent Talents in University of Ministry of Education of China(No.NCET-13-0686) the International Science Cooperation Program(No.2011DFR11010)
【分類號】：TH74
【正文快照】： 1671-7694/2014/120501(4)120501-1?2014 Chinese Optics LettersHigh-contrast grating(HCG),which is 1D planarsub-wavelength structure with a high-refractive-indexcontrast[1 6],has been significantly developed in recentyears.Because of the high transmittivit

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