光子晶体
光学
材料科学
逻辑门
NOR门
折射率
光电子学
和大门
与非门
非线性光学
电子工程
物理
激光器
工程类
作者
Ye Liu,Fei Qin,Ziming Meng,Fei Zhou,Qinghe Mao,Zhiyuan Li
出处
期刊:Optics Express
[The Optical Society]
日期:2011-01-18
卷期号:19 (3): 1945-1945
被引量:149
摘要
This article demonstrates theoretical design of ultracompact all-optical AND, NAND, OR, and NOR gates with two-dimensional nonlinear photonic crystal slabs. Compound Ag-polymer film with a low refractive index and large third-order nonlinearity is adopted as our nonlinear material and photonic crystal cavities with a relatively high quality factor of about 2000 is designed on this polymer slab. Numerical simulations show that all-optical logic gates with low pump-power in the order of tens of MW/cm2 can be achieved. These design results may provide very useful schemes and approaches for the realization of all-optical logic gates with low-cost, low-pump-power, high-contrast and ultrafast response-time.
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