Ciret Charles, Leo François, Kuyken Bart, Roelkens Gunther, Gorza Simon-Pierre
Opt Express. 2016 Jan 11;24(1):114-24. doi: 10.1364/OE.24.000114.
We report on the first experimental observation of an optical analogue of an event horizon in integrated nanophotonic waveguides, through the reflection of a continuous wave on an intense pulse. The experiment is performed in a dispersion-engineered silicon-on-insulator waveguide. In this medium, solitons do not suffer from Raman induced self-frequency shift as in silica fibers, a feature that is interesting for potential applications of optical event horizons. As shown by simulations, this also allows the observation of multiple reflections at the same time on fundamental solitons ejected by soliton fission.
我们报告了在集成纳米光子波导中首次通过连续波在强脉冲上的反射对事件视界的光学类似物进行的实验观测。该实验在经过色散工程设计的绝缘体上硅波导中进行。在这种介质中，孤子不像在石英光纤中那样受到拉曼诱导的自频移影响，这一特性对于光学事件视界的潜在应用来说很有趣。如模拟所示，这还允许同时观测由孤子裂变产生的基态孤子上的多次反射。
