Li Jiahua, Yu Rong, Ding Chunling, Wu Ying
Opt Express. 2014 Jun 16;22(12):15024-38. doi: 10.1364/OE.22.015024.
We explore optical bistability and degenerate four-wave mixing of a hybrid optical system composed of a photonic crystal nanocavity, a single nitrogen-vacancy center embedded in the cavity, and a nearby photonic waveguide serving for in- and outcoupling of light into the cavity in the weak-coupling regime. Here the hybrid system is coherently driven by a continuous-wave bichromatic laser field consisting of a strong control field and a weak probe field. We take account of the nonlinear nature of the nitrogen-vacancy center in the Heisenberg-Langevin equations and give an effective perturbation method to deal with such problems in the continuous-wave-operation regime. The results clearly show that the bistability region of the population inversion and the intensity of the generated four-wave mixing field can be well controlled by properly adjusting the system practical parameters. The nanophotonic platform can be used to implement our proposal. This investigation may be useful for gaining further insight into the properties of solid-state cavity quantum electrodynamics system and find applications in all-optical wavelength converter and switch in a photonic crystal platform.
我们研究了一个混合光学系统的光学双稳性和简并四波混频，该系统由一个光子晶体纳米腔、嵌入腔中的单个氮空位中心以及一个用于在弱耦合 regime 中将光耦合进腔和从腔中耦合出的附近光子波导组成。这里，混合系统由一个由强控制场和弱探测场组成的连续波双色激光场相干驱动。我们在海森堡 - 朗之万方程中考虑了氮空位中心的非线性性质，并给出了一种在连续波运行 regime 中处理此类问题的有效微扰方法。结果清楚地表明，通过适当调整系统实际参数，可以很好地控制粒子数反转的双稳区域和所产生的四波混频场的强度。纳米光子平台可用于实现我们的提议。这项研究可能有助于进一步深入了解固态腔量子电动力学系统的性质，并在光子晶体平台的全光波长转换器和开关中找到应用。
