Journal of Atmospheric and Environmental Optics ›› 2009, Vol. 4 ›› Issue (3): 223-228.

• 论文 • Previous Articles     Next Articles

Discussion about the Spectral Resolution of the Sagnac Interference Imaging Spectrometer Caused by Offset of the Sagnac Prism

LI Su-ning, ZHU Ri-hong, LI Jian-xin, WANG Yan   

  1. Department of Optics Engineering, Nanjing University of Science & Technology, Nanjing, 210094, China
  • Received:2008-12-25 Revised:2009-03-20 Online:2009-05-28 Published:2009-06-02

Abstract:

As to improve the spectral resolution of the Sagnac interference imaging spectrometer, the mathematical model of the system is analyzed. The effect of the offset of the Sagnac prism on the spectral resolution of the system is discussed, and the concrete numerical value of the prism offset is calculated. The simulation experiment is carried out by importing the simulation spectral curve and assuming that it was error free in the instrument installation. The result shows that the spectral resolution can be 2 nm by calculated the offset value, which has the guiding significance for the structure design of the system.

Key words: interference imaging spectrometer, offset, simulation, spectral resolution

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