Acta Optica Sinica, Volume. 32, Issue 9, 931001(2012)
Influence of Lunar Surface Environment on the Optical Characteristic of the Mo/Si Multilayer
The thermal stability and irradiation stability of the Mo/Si multilayer in the high temperature and strong radiation environment of the lunar surface are analyzed. The Mo/Si multilayers are measured by hard X-ray diffractometer (XRD) and laser plasma reflectometer (LPR) before and after heating (in a vacuum chamber) at 100 ℃ and 200 ℃. The results show that there is almost no change in the reflectivity and central wavelength of the Mo/Si multilayer. The distribution of the defects and its density in the Mo/Si multilayer is simulated by Mote Carlo method. It shows that the protons and the defects concentrate in the inner of the multilayer with higher energy protons. The Mo/Si multilayers are irradiated by protons with the energy of 60 keV and the dose 3×1012 cm-2 and 3×1014 cm-2 respectively. The erosion defects and nodule defects are observed in the multilayer after irradiation by protons. The results show that the influence on the Mo/Si multilayers is proportional to the dose of the protons with the same energy.
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Liu Zhen, Gao Jinsong, Chen Bo, Wang Tongtong, Wang Xiaoyi, Shen Zhenfeng, Chen Hong. Influence of Lunar Surface Environment on the Optical Characteristic of the Mo/Si Multilayer[J]. Acta Optica Sinica, 2012, 32(9): 931001
Category: Thin Films
Received: Mar. 14, 2012
Accepted: --
Published Online: Jul. 9, 2012
The Author Email: Zhen Liu (liuzhencl@163.com)