Long-wave infrared interferential imaging spectroscopy system based on split-type Sagnac interferometer

Meng Hemin; Gao Jiaobo; Zheng Yawei; Zhang Lei; Fan Zhe; Luo Yanling; Li Mingwei

Based on split-type Sagnac interferometer, principles of static high-flux interferential imaging spectroscopy were introduced. Equal-ratio depolarizing beam-splitting films working in long-wave infrared were designed and achieved. Design methods of interferometer sizes were given, and interferential light path was verified through TracePro software. By utilizing cryogenic and noncryogenic detectors, the project of infrared interferometer imaging spectrometer was tested with a plastic film transmittance. Measured values from the test turned out to be highly matching with those of high precise Michelson spectrometer, which verified the accuracy of that project. In the end, methods about data rearrangement, baseline correction and apodization were given to preprocess data from push-broom experiment. The results, in turn, verified the feasibility of that systematic working mode.

1. Xi'an Institute of Applied Optics,Xi'an 710065,China

Received Date: 2013-05-11

Rev Recd Date: 2013-06-13

Publish Date: 2014-01-25

Key words:

Abstract: Based on split-type Sagnac interferometer, principles of static high-flux interferential imaging spectroscopy were introduced. Equal-ratio depolarizing beam-splitting films working in long-wave infrared were designed and achieved. Design methods of interferometer sizes were given, and interferential light path was verified through TracePro software. By utilizing cryogenic and noncryogenic detectors, the project of infrared interferometer imaging spectrometer was tested with a plastic film transmittance. Measured values from the test turned out to be highly matching with those of high precise Michelson spectrometer, which verified the accuracy of that project. In the end, methods about data rearrangement, baseline correction and apodization were given to preprocess data from push-broom experiment. The results, in turn, verified the feasibility of that systematic working mode.

HTML

Reference (11)

[1]
[2]	Zhang Chunmin. Interferential Imaging Spectroscopy [M]. Beijing: Science Press, 2010: 4-5. (in Chinese) 张淳民. 干涉成像光谱技术[M]. 北京: 科学出版社, 2010: 4-5.
[3]	Yang Jianfeng, Ruan Ping, Xiangli Bin, et al. Large aperture static imaging spectroscopy (LASIS) [C]//SPIE, 2003, 4897: 318-324.
[4]
[5]
[6]	Xie Jinghui, Liao Ningfang, Cao Liangcai. Fundamentals of Fourier Optics and Contemporary Optics[M]. Beijing: Beijing Institute of Technology Press, 2007: 320-327. (in Chinese) 谢敬辉, 廖宁放, 曹良才. 傅里叶光学与现代光学基础[M]. 北京: 北京理工大学出版社, 2007: 320-327.
[7]	Meng Hemin, Gao Jiaobo, Xiao Xiangguo, et al. Design and validation of infrared interferential imaging spectrometer with high flux [J]. Infrared and Laser Engineering, 2012, 41(11): 2903-2908. (in Chinese) 孟合民, 高教波, 肖相国, 等. 红外高通量干涉成像光谱仪的设计与验证[J]. 红外与激光工程, 2012, 41(11): 2903-2908.
[8]
[9]	Zhao Baochang, Yang Jianfeng, Xue Bin,et al. Design of solid sagnac interferometer [J]. Act Photonic Sinic, 2009, 38(3): 474-478. (in Chinese) 赵葆常, 杨建峰, 薛彬, 等. 实体Sagnac 干涉仪的设计[J]. 光子学报, 2009, 38(3): 474-478.
[10]
[11]	Bergstrom D, Renhorn I, Svensson T, et al. Noise properties of a corner-cube Michelson interferometer LWIR hyperspectral imager[C]//SPIE, 2010, 7660: 76602F-1-76602F-8.

Long-wave infrared interferential imaging spectroscopy system based on split-type Sagnac interferometer

Abstract

References

Proportional views

通讯作者: 陈斌, bchen63@163.com

Article Metrics

Related

Proportional views