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期刊信息
  • 主管单位:
  • 中国科学技术协会
  • 主办单位:
  • 中国仪器仪表学会、上海光学仪器研究所、中国光学学会工程光学专业委员会
  • 主    编:
  • 庄松林
  • 地    址:
  • 上海市军工路516号上海理工大学《光学仪器》编辑部
  • 邮政编码:
  • 200093
  • 联系电话:
  • 021-55270110
  • 电子邮件:
  • gxyq@usst.edu.cn
  • 国际标准刊号:
  • 1005-5630
  • 国内统一刊号:
  • 31-1504/TH
  • 邮发代号:
  • 单    价:
  • 15.00
  • 定    价:
  • 90.00
法诺光栅的共振特性研究
Study on resonance characteristics of Fano grating
投稿时间:2018-10-08  
DOI:10.3969/j.issn.1005-5630.2019.05.011
中文关键词:  亚波长光栅  法诺共振  可见光波段
英文关键词:subwavelength grating  Fano resonance  the visible light region
基金项目:上海市科学技术委员会项目(15140502600)
作者单位E-mail
石鑫 上海理工大学 光电信息与计算机工程学院, 上海 200093  
王海凤 上海理工大学 光电信息与计算机工程学院, 上海 200093 hfwangx@yahoo.com 
摘要点击次数: 4
全文下载次数: 3
中文摘要:
      针对亚波长光栅的共振特性,设计了一种基于法诺共振的亚波长光栅并研究了其共振特性。利用光学模拟软件FDTD Solutions对该光栅结构进行数值模拟,在可见光波段,对影响光栅性能的周期、折射率、占空比等光栅参数进行了研究,从而得到了一种共振强度高、谱线精细、共振峰位置可控的法诺共振谱线。该研究成果可用来研制1 nm精度的光谱滤波器。
英文摘要:
      The study of the resonance characteristics of sub-wavelength gratings has always been one of the most important part of optics. In this paper, a sub-wavelength one-dimensional grating design based on Fano resonance is proposed. Compared with the guided-mode resonance, the Fano resonance has stronger near-field enhancement, finer spectrum and higher sensing quality factor. The optical simulation software, FDTD Solutions, is used to simulate the structure of the grating. The parameters affecting the diffraction performance of the grating are studied in detail, including the period, refractive index and duty ratio of the grating. The simulation results show that Fano resonance lines have high resonance intensities, fine spectral lines and controllable resonance positions in the visible light region. Based on this discovery, the one-dimensional grating structures proposed in this work could be utilized as a wavelength selector with an accuracy of less than 1 nm.
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