Visible to deep ultraviolet range optical absorption of electron irradiated borosilicate glass*
Wang Tie-Shan†, Duan Bing-Huang, Tian Feng, Peng Hai-Bo, Chen Liang, Zhang Li-Min, Yuan Wei
       
EPR spectrum of pristine borosilicate glass. The inset shows a more detail exhibition of Fe3+ related absorbance at g = 4.25.