Numerical study of the effect of reflection grism pair in the case of non-parallel surfaces

作者：Su, Juan^*; Tang, Bin; Liu, Zhonghua

来源：Optik, 2014, 125(1): 401-403.

DOI：10.1016/j.ijleo.2013.06.088

• Grism
• Non-parallelism
• Dispersion relative error

In this paper, we analyze the dispersion characteristics of a reflection grism pair in the case of surfaces non-parallelism. The influences of grism structure parameters on dispersion relative errors are evaluated. Furthermore, we theoretical analyze the effect of the non-parallel grisms surfaces on the output pulse. Results show that when the grism pair is not parallel, the dispersion relative errors are strongly impacted by several factors, such as the grism rotation direction, the rotation angle, grating constant, and the incidence angle of the pulse. If the non-parallelism of grisms is unavoidable, the grisms with high grating constant are superior to that of low grating constant ones.

• 出版日期2014
• 单位西南石油大学