[1]郎咸忠,吴 钦,马 骥,等.基于写入型光盘反射式相位光栅的衍射特性[J].常州大学学报(自然科学版),2020,32(05):88-92.[doi:10.3969/j.issn.2095-0411.2020.05.012]
　LANG Xianzhong,WU Qin,MA Ji,et al.Diffraction Characteristics of Reflection Phase Gratings Based on Write-Once Optical Discs[J].Journal of Changzhou University(Natural Science Edition),2020,32(05):88-92.[doi:10.3969/j.issn.2095-0411.2020.05.012]
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基于写入型光盘反射式相位光栅的衍射特性()
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常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]

卷:
第32卷
期数:
2020年05期
页码:
88-92
栏目:
数理科学
出版日期:
2020-09-28

文章信息/Info

Title:
Diffraction Characteristics of Reflection Phase Gratings Based on Write-Once Optical Discs
文章编号:
2095-0411(2020)05-0088-05
作者:
郎咸忠1; 吴 钦2; 马 骥1; 唐 斌1; 苏江滨1; 蒋美萍1
1.常州大学 数理学院,江苏 常州 213164; 2.常州市第一中学 物理部,江苏 常州 213003
Author(s):
LANG Xianzhong1;  WU Qin2;  MA Ji1;  TANG Bin1;  SU Jiangbin1;  JIANG Meiping1
1. School of Mathematics and Physics, Changzhou University, Changzhou 213164, China; 2. Teaching and Research Group of Physics, Changzhou No.1 High School, Changzhou 213003, China
关键词:
相位光栅;  衍射;  光盘;  角分辨率
Keywords:
phase grating;  diffraction;  optical disc;  angular dispersion
分类号:
O 436.1
DOI:
10.3969/j.issn.2095-0411.2020.05.012
文献标志码:
A
摘要:
对基于一次性写入型光盘的反射式相位光栅的微观结构和背向衍射特性进行研究。利用简单地剥离普通光盘的方法,获得了光栅常数分别为1 524,751,335 nm的自制聚碳酸酯相位光栅。分别对这3种自制光栅的背向衍射特性进行比较分析,发现CD-R和DVD-R光栅的衍射光谱在可见光区域,而BD-R相位光栅的衍射光谱在近紫外区域; CD-R相位光栅存在叠级现象,并且衍射级次越大,角分辨率越大; 这3种光栅的衍射光谱的各个衍射峰与偏向角呈现近似线性关系,并且随着光栅常数的减小,同级衍射光谱角分辨率增大,最大角分辨率为0.333(°)/nm。另外,当入射光波长大于光栅常数波长时,DVD-R和BD-R相位光栅相当于亚波长光栅,仅存在0级衍射波。
Abstract:
Reflection phase gratings based on write-once optical discs are proposed. Their morphology and backward diffraction characteristics are investigated. Home-made phase gratings with well-defined spacing about 1 524, 751, 335 nm are readily produced by pulling off ordinary optical discs. The backward diffraction characteristics of three phase gratings are compared. The research results show that diffraction phenomena of CD-R, DVD-R and BD-R gratings are observed in visible, visible-NIR and ultraviolet regions, respectively; successive spectra overlap are observed in diffraction spectra of the CD-R grating and angular dispersion of diffraction spectra increases as the diffraction order increases; diffraction angle of the three gratings is linearly proportional to the diffraction peak, angular dispersion increases as the grating constants decreases and the maximum angular dispersion is 0.333(°)/nm. In addition, when wavelength of incident light is more than the grating period, there is only zero-order diffraction wave in diffraction spectra of the DVD-R and BD-R subwavelength gratings.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2020-04-01。
基金项目:国家自然科学基金资助项目(51501018); 江苏省高等学校自然科学研究面上项目(18KJB430003); 常州大学信息数理学院教育教学研究课题(2017XSJY06)。
作者简介:郎咸忠(1984—),男,山东潍坊人,博士,讲师。E-mail:xzlang@cczu.edu.cn
更新日期/Last Update: 2020-09-20