System design of Fourier transform imaging spectrometer using tunable lateral shearing splitter

Xin Meng; Jianxin Li; Caixun Bai; Rihong Zhu

doi:10.1117/12.2179843

13 April 2015 System design of Fourier transform imaging spectrometer using tunable lateral shearing splitter

Xin Meng, Jianxin Li, Caixun Bai, Rihong Zhu

Proceedings Volume 9522, Selected Papers from Conferences of the Photoelectronic Technology Committee of the Chinese Society of Astronautics 2014, Part II; 952219 (2015) https://doi.org/10.1117/12.2179843
Event: Selected Proceedings of the Photoelectronic Technology Committee Conferences held August-October 2014, 2014, China, China

Abstract

The Fourier transform spectrometer without slit has the advantages of high radiation throughput and high spatial resolution. It can be used for detecting more details of the spectral and spatial information. We present the initial structure of the collimator and objective based on the analysis of the principle of the Fourier transform spectrometer. Then the collimator and objective are optimized by Zemax. The MTF of the cut-off frequency is great than 0.7. The tunable lateral shearing splitter is used as the interferometer, which makes the system more compact compared with the system using Sagnac lateral shearing splitter. The method to calculate the geometric dimension of the splitter is presented. Then the complete Fourier transform spectrometer is designed. The MTF of the cut-off frequency is great than 0.6. And the largest RMS of the spot is less than 6μm.

Citation Download Citation

Xin Meng, Jianxin Li, Caixun Bai, and Rihong Zhu "System design of Fourier transform imaging spectrometer using tunable lateral shearing splitter", Proc. SPIE 9522, Selected Papers from Conferences of the Photoelectronic Technology Committee of the Chinese Society of Astronautics 2014, Part II, 952219 (13 April 2015); https://doi.org/10.1117/12.2179843

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