Characteristics of the spectral lines of immersion gratings | |
其他题名 | 浸入式光栅谱线特性 |
Tang Qian1,2,3; Guo Li-Xin1; Zhao Bao-Chang4; Guo, LX (reprint author), Xidian Univ, Sch Phys & Optoelect Engn, Xian 710071, Shaanxi, Peoples R China. | |
作者部门 | 瞬态光学技术国家重点实验室 |
2017-10-01 | |
发表期刊 | JOURNAL OF INFRARED AND MILLIMETER WAVES |
ISSN | 1001-9014 |
卷号 | 36期号:5页码:569-574 |
产权排序 | 1 |
摘要 | Immersion gratings are typically used in the infrared spectral band in which optical materials with high refractive index. Some issues inevitably arise due to their special operating mode. And they are critical to the application of immersion gratings. This study investigated the relations between the lengths of the long- and short-wave of normal gratings. For the features of the relevance of the refractive index with wavelength, the short-wave infrared spectral band (1.5 similar to 2.5 mu m) was taken as an example to analyze the change characteristics of spectral line location and spectral resolution of immersion gratings. Results showed that when immersion gratings were adopted, significant differences were observed in the distribution of spectral lines as compared with normal gratings, and "trapezoidal" spectral lines tilted. For short-wave infrared spectral lines, the inclination of the "trapezoidal" spectral lines became more apparent due to larger changes in the refractive index of the medium. When Littrow conditions were registered with long-wave length (2. 5 mu m), the spectral line tilted toward the short-wave end. When registration was done with short-wave length (1. 5 mu m), the spectral line tilted toward the long-wave end, and the Littrow wavelength drifted away from, the central wavelength. The refractive index had a few changes at the thermal infrared spectral band. The tilt of "trapezoidal" spectral lines was smaller and more similar to that of normal gratings. The spectral resolution of immersion gratings varied due to changes in the refractive index. At the same order, the wavelength increased, and resolution increased; between various orders, the order decreased, and the resolution decreased. Meanwhile, considering that the high-order resolution was larger than the low-order' s, the ratio of the lengths of spectral lines at various orders no longer meet the relation of normal gratings. |
文章类型 | Article |
关键词 | Grating Immersion Refractive Index Spectral Line Drift |
学科领域 | Optics |
WOS标题词 | Science & Technology ; Physical Sciences |
DOI | 10.11972/j.issn.1001-9014.2017.05.010 |
收录类别 | SCI ; EI ; CSCD |
关键词[WOS] | METHANE |
语种 | 英语 |
WOS研究方向 | Optics |
项目资助者 | National Natural Science Foundation of China(61501361) ; State Key Laboratory of Transient Optics and Photonics, Chinese Academy of Sciences(SKLST201509) ; Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province(GD201712) ; Key Laboratory of Spectral Imaging Technology, Chinese Academy of Sciences(LSIT201506) ; Fundamental Research Funds for the Central Universities(JB160509) |
WOS类目 | Optics |
WOS记录号 | WOS:000416193300010 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.opt.ac.cn/handle/181661/29397 |
专题 | 瞬态光学研究室 空间光学技术研究室 |
通讯作者 | Guo, LX (reprint author), Xidian Univ, Sch Phys & Optoelect Engn, Xian 710071, Shaanxi, Peoples R China. |
作者单位 | 1.Xidian Univ, Sch Phys & Optoelect Engn, Xian 710071, Shaanxi, Peoples R China 2.Chinese Acad Sci, State Key Lab Transient Opt & Photon, Xian 710119, Shaanxi, Peoples R China 3.Shenzhen Univ, Minist Educ & Guangdong Prov, Key Lab Optoelect Devices & Syst, Shenzhen 518060, Peoples R China 4.Chinese Acad Sci, Xian Inst Opt & Precis Mech, Space Opt Technol Res Dept, Xian 710119, Shaanxi, Peoples R China |
推荐引用方式 GB/T 7714 | Tang Qian,Guo Li-Xin,Zhao Bao-Chang,et al. Characteristics of the spectral lines of immersion gratings[J]. JOURNAL OF INFRARED AND MILLIMETER WAVES,2017,36(5):569-574. |
APA | Tang Qian,Guo Li-Xin,Zhao Bao-Chang,&Guo, LX .(2017).Characteristics of the spectral lines of immersion gratings.JOURNAL OF INFRARED AND MILLIMETER WAVES,36(5),569-574. |
MLA | Tang Qian,et al."Characteristics of the spectral lines of immersion gratings".JOURNAL OF INFRARED AND MILLIMETER WAVES 36.5(2017):569-574. |
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