Measurement of Two-Photon Absorption Cross Section of Metal Ions by a Mass Sedimentation Approach

被引：15

作者：

Ma, Zhuo-Chen ^{[1
]}

Chen, Qi-Dai ^{[1
]}

Han, Bing ^{[1
]}

Liu, Xue-Qing ^{[1
]}

Song, Jun-Feng ^{[1
]}

Sun, Hong-Bo ^{[1
,2
]}

机构：

[1] Jilin Univ, Coll Elect Sci & Engn, State Key Lab Integrated Optoelect, Changchun 130012, Peoples R China

[2] Jilin Univ, Coll Phys, Changchun 130023, Peoples R China

来源：

SCIENTIFIC REPORTS | 2015年 / 5卷

基金：

中国国家自然科学基金;

关键词：

OPTICAL-DATA STORAGE; PHOTOCHEMICAL FORMATION; QUANTUM DOTS; POLYMERIZATION; SILVER; FLUORESCENCE; INITIATORS; EXCITATION;

D O I：

10.1038/srep17712

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

070301 [无机化学]; 070403 [天体物理学]; 070507 [自然资源与国土空间规划学]; 090105 [作物生产系统与生态工程];

摘要：

The photo-reduction of metal ions in solution induced by femtosecond laser is an important and novel method for fabricating three-dimensional metal microstructures. However, the nonlinear absorption cross section of metal ions remains unknown because its measurement is difficult. In the present study, a method based on Two-Photon Excited Sedimentation (TPES) is proposed to measure the two-photon absorption cross section (TPACS) of metal ions in solution. The power-squared dependence of the amount of sediment on the excitation intensity was confirmed, revealing that 800 nm femtosecond laser induced reduction of metal ions was a two photon absorption process. We believe that the proposed method may be applied to measure the TPACS of several metal ions, thereby opening a new avenue towards future analysis of two-photon absorption materials.

引用

页数：8

共 36 条

[1]

Two-photon absorption cross section measurements of various two-photon initiators for ultrashort laser radiation applying the Z-scan technique [J].