Filamentation and supercontinuum generation in lanthanum glass
文献类型：期刊论文
| 作者 | Zhao, Guoying; Yang, Yuxia; Liao, Meisong; Li, Xia; Bi, Wanjun; Ohishi, Yasutake; Cheng, Tonglei; Fang, Yongzheng; Gao, Weiqing |
| 刊名 | J. Appl. Phys.
 |
| 出版日期 | 2017 |
| 卷号 | 121期号:2 |
| 通讯作者 | liaomeisong@siom.ac.cn |
| 英文摘要 | A broadband supercontinuum (SC) covering 400-2800 nm in a 20 dB dynamic range is reported in a piece of highly nonlinear, low-dispersion bulk lanthanum glass without employing any lens to focus the pump pulse. The spectrum width obtained in this study is broader than the maximum spectrum width obtained in silica photonic crystal fibers. The filaments and bright conical visible emission patterns of the SC are analyzed. Under optimum pump conditions, an SC conversion efficiency of 75% is obtained. The SC conversion efficiency is confirmed to be stable. Additionally, the relationship between the input peak intensity and the output beam radius is elucidated by simulating the propagation of a Gaussian beam in the bulk lanthanum glass. A 0.20mm stable laser beam radius at the end of the propagation domain is demonstrated in a certain input peak intensity range. This small value of the beam radius indicates that most of the output power is localized over a small region because of the Kerr focusing effect despite the existence of conical emission in the SC generation by filamentation. The findings of this study are of significance for the development of ultra-broadband SC sources based on bulk glasses and high peak power lasers. |
| 收录类别 | SCI |
| 资助信息 | Hundred Talents Program of the Chinese Academy of Sciences; National Natural Science Foundation of China (NSFC) [61475171, 11374084, 61307056]; Pujiang Talent Plan [14PJ1409200]; Joint Research Project of Chinese Academy of Science and Japan Society for the Promotion of Science [GJHZ1412]; National High Technology Research and Development Program of China [2012AA041203] |
| WOS记录号 | WOS:000392840000007 |
| 源URL | [http://ir.siom.ac.cn/handle/181231/28286]  |
| 专题 | 上海光学精密机械研究所_高功率激光单元技术研发中心 |
| 作者单位 | 中国科学院上海光学精密机械研究所 |
| 推荐引用方式 GB/T 7714 | Zhao, Guoying,Yang, Yuxia,Liao, Meisong,et al. Filamentation and supercontinuum generation in lanthanum glass[J]. J. Appl. Phys.,2017,121(2). |
| APA | Zhao, Guoying.,Yang, Yuxia.,Liao, Meisong.,Li, Xia.,Bi, Wanjun.,...&Gao, Weiqing.(2017).Filamentation and supercontinuum generation in lanthanum glass.J. Appl. Phys.,121(2). |
| MLA | Zhao, Guoying,et al."Filamentation and supercontinuum generation in lanthanum glass".J. Appl. Phys. 121.2(2017). |
入库方式： OAI收割
来源：上海光学精密机械研究所
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