• Chinese Journal of Lasers
  • Vol. 39, Issue 11, 1116001 (2012)
Liu Zhuang1、2、* and Gong Yan1
Author Affiliations
  • 1[in Chinese]
  • 2[in Chinese]
  • show less
    DOI: 10.3788/cjl201239.1116001 Cite this Article Set citation alerts
    Liu Zhuang, Gong Yan. Design of Optical System for Solar Extreme-Ultraviolet Imaging Spectrometer Using Holographic Varied Line Spacing Grating[J]. Chinese Journal of Lasers, 2012, 39(11): 1116001 Copy Citation Text show less

    Abstract

    With the in-depth research in the physical process of solar activities, the demand for the performance of solar extreme-ultraviolet imaging spectrometer is increasing. One important method of designing high-performance sun extreme-ultraviolet imaging spectrometer is to use the holographic varied line spacing grating. The design method is presented in this paper as follows. The initial optical structure of the system is designed firstly. Then the grating whose aberration is small is calculated based on holographic varied line spacing grating′s optical path difference theory and universal global optimization of 1stopt software. The entire system is modeled and optimized with optical design software Zemax finally. A design example is given with the working band of 17~21 nm, the field of view of 2400″, the spatial resolution of 0.6″, the spectral resolution of 0.00225 nm/pixel, and the length of about 2 m. In the spectral range, the root mean square radii in spatial direction and spectral direction and the modulation transfer function in the cutoff frequency range all satisfy the requirement.
    Liu Zhuang, Gong Yan. Design of Optical System for Solar Extreme-Ultraviolet Imaging Spectrometer Using Holographic Varied Line Spacing Grating[J]. Chinese Journal of Lasers, 2012, 39(11): 1116001
    Download Citation