Title :
Doped polymer films with high nonlinear refractive indices
Author :
Zhang, Z.X. ; Qiu, W. ; Pun, E.Y.B. ; Chung, P.S. ; Shen, Y.Q.
Author_Institution :
City Univ. of Hong Kong, Kowloon, Hong Kong
fDate :
1/18/1996 12:00:00 AM
Abstract :
Nonlinear refractive indices n2 of two push-pull azobenzene doped polymer materials have been measured using the single beam Z-scan method. The value of sample B is as high as 1.7×106 cm2/W, and is nearly two orders of magnitude larger than that of sample A. The self-phase modulation pattern of sample B has been observed using very low incident laser intensity. The origins of the large nonlinear optical response of the two doped polymer materials are discussed
Keywords :
nonlinear optics; optical films; optical modulation; optical polymers; phase modulation; refractive index; doped polymer films; doped polymer materials; high nonlinear refractive indices; large nonlinear optical response; push-pull azobenzene doped polymer materials; self phase modulation pattern; single beam Z-scan method; very low incident laser intensity;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19960090
