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Origins of a damage-induced green photoluminescence band in fused silica revealed by time-resolved photoluminescence spectroscopy
Zhou, Jiangning1,2; Li, Bincheng1,3
2017
Source PublicationOptical Materials Express
ISSN2159-3930
Volume7Issue:8Pages:295821
AbstractWith combined lifetime and intensity spectra in time-resolved photoluminescence (PL) spectroscopy, the origins of a green PL band consisting of a 2.39eV-band with lifetime ∼10μs and a 2.25eV-band with lifetime ∼50μs, of high-purity fused silica under ArF excimer laser (6.4eV) excitation were revealed. The 2.39eV PL defects from the surface were annealed due to the deoxidation of the dioxasilyrane group ( = SiO2). The 2.25eV PL defects from bulk showed a UV induced growth. Mechanical and laser damage induced growth of the 2.25eV PL band confirmed that it was due to physical disorder from bending of Si-O-Si bonds. Theoretical calculations further assigned the 2.25eV PL band to silanone groups ( = Si = O), which can be created by relaxation process of strained Si-O bonds in SiO2network. © 2017 Optical Society of America.
KeywordExcimer lasers - Laser damage - Laser excitation - Photoluminescence - Photoluminescence spectroscopy - Silica - Silicon - Surface defects
Indexed BySCI ; Ei
Language英语
Document Type期刊论文
Identifierhttp://ir.ioe.ac.cn/handle/181551/8851
Collection薄膜光学技术研究室(十一室)
Affiliation1.Institute of Optics and Electronics, Chinese Academy of Sciences, Shuangliu, Chengdu; 610209, China;
2.Graduate University of Chinese Academy of Science, Beijing; 100049, China;
3.School of Optoelectronic Information, University of Electronic and Science and Technology of China, Chengdu; 610054, China
Recommended Citation
GB/T 7714
Zhou, Jiangning,Li, Bincheng. Origins of a damage-induced green photoluminescence band in fused silica revealed by time-resolved photoluminescence spectroscopy[J]. Optical Materials Express,2017,7(8):295821.
APA Zhou, Jiangning,&Li, Bincheng.(2017).Origins of a damage-induced green photoluminescence band in fused silica revealed by time-resolved photoluminescence spectroscopy.Optical Materials Express,7(8),295821.
MLA Zhou, Jiangning,et al."Origins of a damage-induced green photoluminescence band in fused silica revealed by time-resolved photoluminescence spectroscopy".Optical Materials Express 7.8(2017):295821.
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