Photochromism induced nonlinear optical absorption enhancement and ultrafast responses of several dithienylethene compounds
文献类型：期刊论文
| 作者 | Wang, Yaochuan1,2; Yan, Yongli3; Liu, Dajun1; Wang, Guiqiu1; Pu, Shouzhi4 |
| 刊名 | JOURNAL OF APPLIED PHYSICS
 |
| 出版日期 | 2015-11-14 |
| 卷号 | 118期号:18 |
| 英文摘要 | The nonlinear optical properties and ultrafast dynamics of three dithienylethene photochromic derivatives (i.e., P1, P2, and P3) were investigated by two-photon fluorescence, open-aperture Z-scan, and femtosecond pump-probe experiments. Photoinduced ring-closure and ring-opening phenomena, as well as a photochromism induced nonlinear optical property enhancement, were observed. For both the ring-opening and ring-closure state, the curve exhibited an ultrafast absorption peak approximately 200 fs followed by a fast decay process (i.e., similar to 1 ps) and a long decay process that had a duration longer than 5 ps. The ultrafast peak followed by a fast decay process and the long decay process were attributable to a special two-photon absorption process, the formation of a charge separation state, and the relaxation of the charge separation state, respectively. However, the magnitude of the signal under the ring-closure state is approximately fivefold greater than that of the ring-opening state, which is in good agreement with nonlinear optical results. Intramolecular charge transfer processes were observed in the dynamics curves of the P2' and P3' isomers with D-pi-A and D-pi-D structures. (C) 2015 AIP Publishing LLC. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2016-05-09 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/29250]  |
| 专题 | 化学研究所_光化学实验室 |
| 作者单位 | 1.Dalian Maritime Univ, Dept Phys, Dalian 116026, Peoples R China 2.Dalian Univ Technol, State Key Lab Fine Chem, Dalian 116024, Peoples R China 3.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Key Lab Photochem, Beijing 100190, Peoples R China 4.Jiangxi Sci & Technol Normal Univ, Jiangxi Key Lab Organ Chem, Nanchang 330013, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Yaochuan,Yan, Yongli,Liu, Dajun,et al. Photochromism induced nonlinear optical absorption enhancement and ultrafast responses of several dithienylethene compounds[J]. JOURNAL OF APPLIED PHYSICS,2015,118(18). |
| APA | Wang, Yaochuan,Yan, Yongli,Liu, Dajun,Wang, Guiqiu,&Pu, Shouzhi.(2015).Photochromism induced nonlinear optical absorption enhancement and ultrafast responses of several dithienylethene compounds.JOURNAL OF APPLIED PHYSICS,118(18). |
| MLA | Wang, Yaochuan,et al."Photochromism induced nonlinear optical absorption enhancement and ultrafast responses of several dithienylethene compounds".JOURNAL OF APPLIED PHYSICS 118.18(2015). |
入库方式： OAI收割
来源：化学研究所
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