光子学报 ›› 2019, Vol. 48 ›› Issue (4): 424002-0424002.doi: 10.3788/gzxb20194804.0424002

• 表面光学 • 上一篇    下一篇

基于折射率调制的表面等离子体全息衍射效率分析

王迪1,2, 尹韶云2, 江海波2, 马宏博1,2, 高天元1   

  1. 1 长春理工大学 光电测控与光信息传输技术教育部重点实验室, 长春 130022;
    2 中国科学院重庆绿色智能技术研究院 集成光电技术中心, 重庆 400714
  • 收稿日期:2018-11-14 出版日期:2019-04-25 发布日期:2019-01-14
  • 通讯作者: 高天元(1970-),男,副研究员,博士,主要研究方向为先进光学仪器装调与检测.Email:gty@cust.edu.cn
  • 作者简介:王迪(1993-),男,硕士研究生,主要研究方向为先进光学仪器装调与检测与全息显示与成像系统.Email:469659127@qq.com
  • 基金资助:

    国家自然科学基金(Nos.61475199,61605208),国家重点研发计划(No.2017YFB1002900)

Diffraction Efficiency Analysis of Surface Plasmon Holography Based on Refractive Index Modulation

WANG Di1,2, YIN Shao-yun2, JIANG Hai-bo2, MA Hong-bo1,2, GAO Tian-yuan1   

  1. 1. Key Laboratory of Optoelectric Measurement & Control and Optical Information Transfer Technology, Ministry of Education, Changchun University of Science and Technology, Changchun 130022, China;
    2. Integrated Optoelectronic Technology Center, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China
  • Received:2018-11-14 Online:2019-04-25 Published:2019-01-14
  • Contact: 2019-01-14
  • Supported by:

    National Natural Science Foundation of China (Nos.61475199, 61605208), National Key Research and Development Program of China (No.2017YFB1002900)

摘要:

针对折射率调制的表面等离子体全息显示方案,采用严格耦合波计算方法,仿真了变折射率薄膜正弦光栅结构参数与衍射效率的关系.结果表明,银作为表面等离子体激发材料时,0.2 μm为光栅最优厚度,在此基础上,一级次光衍射效率与折射率差值、周期呈正比增长关系.对折射率范围进行了拓展,确定了折射率调制范围在1.34~1.8、周期为0.9 μm时,对应的衍射效率可达33%以上.研究结果对于优化设计表面等离子体全息显示结构具有参考意义.

关键词: 全息, 表面等离子体, 衍射效率, 正弦光栅, 严格耦合波分析法

Abstract:

For the surface-plasma holographic display scheme of refractive index modulation,the relationship between the structural parameters of the variable-refractive-index thin-film sinusoidal grating and the diffraction efficiency is simulated by using the rigorous coupled-wave calculation method.The results show that when the silver is used as the surface plasmon excitation material,0.2 μm is the optimum thickness of the grating.On this basis,the diffraction efficiency of the first-order light is proportional to the refractive index difference and the period.The refractive index range is expanded,confirming that when the refractive index modulation range is 1.34~1.8 and the period is 0.9 μm,the diffraction efficiency can reach more than 33%.This study has reference significance for the design of surface plasmon holographic display structures.

Key words: Rigorous couple-wave analysis, Holography, Diffraction efficiency, Sinusoidal grating, Surface plasma

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