Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10653568 | Solid State Communications | 2005 | 5 Pages |
Abstract
The results of the femtosecond optical heterodyne detection of optical Kerr effect at 805Â nm with the 80Â fs ultrafast pulses in amorphous Ge10As40S30Se20 film is reported in this paper. The film shows an optical non-linear response of 200Â fs under ultrafast 80Â fs-pulse excitation, and the values of real and imaginary parts of non-linear susceptibility Ï(3) were 9.0Ã10â12 and â4.0Ã10â12Â esu, respectively. The large third-order non-linearity and ultrafast response are attributed to the ultrafast distortion of the electron orbits surrounding the average positions of the nucleus of Ge, As, S and Se atoms. This Ge10As40S30Se20 chalcogenide glass would be expected as a promising material for optical switching technique.
Related Topics
Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
Qiming Liu, Xiujian Zhao, Fuxi Gan, Jun Mi, Shixiong Qian,