高非线性硅基混合等离子体微环谐振器中偏振光信号的全光逻辑运算。

All-optical logic operation of polarized light signals in highly nonlinear silicon hybrid plasmonic microring resonators.

作者信息

Dai Jing, Zhang Minming, Zhou Feiya, Wang Yuanwu, Lu Luluzi, Liu Deming

出版信息

Appl Opt. 2015 May 10;54(14):4471-7. doi: 10.1364/AO.54.004471.

DOI:10.1364/AO.54.004471

Abstract

All-optical logic operation is theoretically demonstrated by means of polarization-dependent four-wave mixing (FWM) processes in a highly nonlinear silicon hybrid plasmonic waveguide (HPWG) microring resonator. We design an ultra-compact (radii = 1 μm) microring resonator (MRR) that is realized by using a silicon HPWG with the capacity for subwavelength-bending. The HPWG exhibits very high confinement (Aeff~~0.045 μm(2)) that can result in a remarkably high nonlinear parameter (γ~~3000 W(-1) m(-1)), given a highly nonlinear gap material. By manipulating the polarization properties of the pump and signals with a very low electric field (|E|~10(8) Vm(-1)), all-optical NOT, NOR, and NAND logical operations are obtained through the FWM process. These compact all-optical nanoplasmonic devices are stable, fabrication simplified, and silicon on insulator (SOI) compatible.

摘要

通过在高度非线性的硅混合等离子体波导（HPWG）微环谐振器中利用偏振相关的四波混频（FWM）过程，从理论上证明了全光逻辑运算。我们设计了一种超紧凑（半径 = 1μm）的微环谐振器（MRR），它是通过使用具有亚波长弯曲能力的硅HPWG实现的。给定一种高度非线性的间隙材料，HPWG表现出非常高的限制（有效面积Aeff~~0.045μm²），这可导致非常高的非线性参数（γ~~3000W⁻¹m⁻¹）。通过用非常低的电场（|E|~10⁸Vm⁻¹）操纵泵浦和信号的偏振特性，通过FWM过程获得了全光非、或非和与非逻辑运算。这些紧凑的全光纳米等离子体器件稳定、制造简化且与绝缘体上硅（SOI）兼容。