外文题目: Highly efficient reflective Dammann grating with a triangular structure
作者: Wang, Jin; Zhou, Changhe; Ma, Jianyong; Zong, Yonghong; Jia, Wei
刊名: Appl. Optics
年: 2016 卷: 55 期: 19 页： 5203--5207
英文关键词:

BEAM SPLITTER; PHASE GRATINGS; ARRAY; DESIGN; GENERATION; SYSTEM
英文摘要:
A highly efficient reflective Dammann grating with a triangular structure operating at 1064 nm wavelength under normal incidence for TE polarization is designed and fabricated. Rigorous coupled wave analysis and particle swarm optimization algorithms are adopted to design and analyze the properties. The triangular reflective grating could cancel the 0th order, and the mechanism is clarified by the simplified modal method. The gratings are fabricated by direct laser writing lithography. The diffraction efficiency of fabricated grating is more than 86% at 1064 nm wavelength (97.6% in theory). This reflective grating should be a useful optical element in the field of high-power lasers as well as other reflective applications. (C) 2016 Optical Society of America


文献类型: 期刊论文
正文语种: English
收录类别: SCIEI
DOI: 10.1364/AO.55.005203


全文传递服务