Study on the Vacuum Ultraviolet Transmittance of Barium Fluoride Crystals at Different Temperature
PENG Ru-yi1, 2, FU Li-ping1*, TAO Ye3
1. National Space Science Center, Chinese Academy of Sciences, Beijing 100190, China 2. University of Chinese Academy of Sciences, Beijing 100049, China 3. Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
Abstract：Two VUV-grade BaF2 windows with 0.5 mm-thick and 1 mm-thick respectively were selected to study the transmittance variety with the temperature. The results show that the cutoff wavelength of BaF2 crystals will shift towards the long wave with the increase in temperature. In a certain temperature range, BaF2 crystals can depress 130.4nm radiation well, and also has a high transmittance at 135.6 nm. Compared with the reported method in which SrF2 crystals can be applied to suppress 130.4 nm stray light by heating, BaF2 crystal can inhibit the 130.4 nm emission line completely, and thus reduce the power consumption of the device at the same time. This indicates that BaF2 crystals can play an important role in the ionosphere optical remote sensing detection.
彭如意1, 2，付利平1*，陶 冶3 . 氟化钡晶体真空紫外透过率温度特性研究 [J]. 光谱学与光谱分析, 2014, 34(03): 713-716.
PENG Ru-yi1, 2, FU Li-ping1*, TAO Ye3 . Study on the Vacuum Ultraviolet Transmittance of Barium Fluoride Crystals at Different Temperature. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2014, 34(03): 713-716.
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