光子学报, 2005, 34 (1): 98, 网络出版: 2006-06-12
非线性一维光子晶体光开关与光双稳
Optical Switch and Bistability Based on Nonlinear One-dimensional Photonic Crystals
摘要
设计和制备了ZnS/ZnSe叠层共20个周期的非线性一维光子晶体光开关与光双稳器件.理论模拟了波长514.5 nm的氩离子激光,在阈值功率密度1.0×105 W/cm2下,完全移出光子禁带,实现了光开关.同一器件也可作为光学双稳器件,实验测出其阈值功率密度为1.38×105 W/cm2,双稳开关时间为100 ps.理论与实验结果基本一致.
Abstract
The optical switch and bistability based on nonlinear one-dimensional photonic crystals is designed and manufactured.The device, which has 20 periods, is made from ZnS layers and ZnSe layers alternately. When the incident power density reaches 1.0×10 5 W/cm 2, the Ar ion laser,wavelength of which is 514.5 nm, is shifted out of the optical bandgap of the one-dimensional nonlinear photonic crystals. Optical switch turns on to a high trasmission state. It also can be made into optical bistability device. The threshold power density of the optical bistability is 1.38×10 5 W/cm 2 and the switching time of the optical bistability is about 100 ps. The experimental results agree well with the theory one.
陈明, 李淳飞, 徐迈, 王维彪, 夏玉学, 马少杰. 非线性一维光子晶体光开关与光双稳[J]. 光子学报, 2005, 34(1): 98. 陈明, 李淳飞, 徐迈, 王维彪, 夏玉学, 马少杰. Optical Switch and Bistability Based on Nonlinear One-dimensional Photonic Crystals[J]. ACTA PHOTONICA SINICA, 2005, 34(1): 98.