Second-harmonic generation in IR-transparent beta-GeS2 crystallized glasses.
IR-transparent beta-GeS(2) crystallized glasses were fabricated by crystallization of the glass with a stoichiometric composition corresponding to target crystal and only beta-GeS(2) crystallites were precipitated. A clear second-harmonic generation was observed in the crystallized glasses by the Maker fringe technique. The optical nonlinear susceptibility, chi((2)), of beta-GeS(2) crystallized glasses was found to be ~7.3 pm/V, being comparable to that created by thermal/electric or other poling methods, which opens a new way to an optical converter operating in the mid-IR spectral region.
Wuhan University of Technology, Wuhan, Hubei 430070, China.
Changgui
C
Lin
Haizheng
H
Tao
Xiaolin
X
Zheng
Ruikun
R
Pan
Haochun
H
Zang
Xiujian
X
Zhao