Femtosecond laser-induced pre-damage dynamics in Al2O3/SiO2 mirror
文献类型：会议论文
| 作者 | Du, Juan; Li, Zehan; Xue, Bing; Kobayashi, Takayoshi; Han, Dongjia; Zhao, Yuanan; Leng, Yuxin |
| 出版日期 | 2015 |
| 会议名称 | 4th pacific rim laser damage symposium on optical materials for high-power lasers |
| 通讯作者 | du, j (reprint author), chinese acad sci, state key lab high field laser phys, shanghai inst opt & fine mech, shanghai 201800, peoples r china. |
| 英文摘要 | uv femtosecond laser pulse was used to excite the ultrafast carrier dynamics inside the al2o3/sio2 high reflective mirror. spectral shift between two different laser induced free electron absorption bands was observed. the former one centered at 406 nm undergo a fast decay of similar to 2.6 ps and a longer one of similar to 15 ps. accompanied by the fast decay of the first absorption band, a new absorption band centered at 396 nm grew around similar to 2.8 ps after the laser excitation. the probable explanation the observed spectral shift of the free electron absorption band is that, the free carrier in the al3o2 conductive band was trapped into some kind of defect state, which has an absorption peak at 396 nm, at a time scale of similar to 2.8 ps. since the defect state has much longer lifetime than the initial generated free carriers in thee conductive band, probably under the condition of ultrafast high-frequency pulsed uv laser exposure, the incubation effect will decrease the laser damage threshold of the subsequent laser pulses. |
| 收录类别 | CPCI |
| 会议录 | pacific rim laser damage 2015: optical materials for high-power lasers
 |
| 会议录出版者 | spie-int soc optical engineering |
| 语种 | 英语 |
| 源URL | [http://ir.siom.ac.cn/handle/181231/17205]  |
| 专题 | 上海光学精密机械研究所_强场激光物理国家重点实验室 |
| 作者单位 | 1.[Du, Juan 2.Han, Dongjia] Chinese Acad Sci, State Key Lab High Field Laser Phys, Shanghai Inst Opt & Fine Mech, Shanghai 201800, Peoples R China 3.[Li, Zehan 4.Zhao, Yuanan] Chinese Acad Sci, Key Lab Mat High Power Laser, Shanghai Inst Opt & Fine Mech, Shanghai 201800, Peoples R China 5.[Xue, Bing 6.Kobayashi, Takayoshi] Univ Electrocommun, Adv Ultrafast Laser Res Ctr, Chofu, Tokyo 1828585, Japan 7.[Xue, Bing 8.Kobayashi, Takayoshi] CREST, JST, Chiyoda Ku, Ks Gobancho, Tokyo 1020076, Japan 9.[Leng, Yuxin] Shanghai Jiao Tong Univ, FSA Collaborat Innovat Ctr, Shanghai 200240, Peoples R China |
| 推荐引用方式 GB/T 7714 | Du, Juan,Li, Zehan,Xue, Bing,et al. Femtosecond laser-induced pre-damage dynamics in Al2O3/SiO2 mirror[C]. 见:4th pacific rim laser damage symposium on optical materials for high-power lasers. |
入库方式： OAI收割
来源：上海光学精密机械研究所
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