Photorefractive properties of Cu-doped KNSBN crystal with fluorine replacing oxygen.
We report the photorefractive properties of a new kind of Cu-doped KNSBN crystal in which a small fraction of oxygen (O) atoms are replaced with fluorine (F) atoms. The replacement of oxygen with fluorine in Cu:KNSBN crystals leads to a much shorter response time of 30 ms at an incident intensity of 5 W/cm(2). We also discuss the effect of electron-hole competition on the coupling constant.
Shen
X
X
Zhao
J
J
Wang
R
R
Yeh
P
P
Zhang
S
S
Chen
H
H