Thin layers of phase change materials are investigated theoretically and experimentally as way to modulate the properties of light interacting with silicon at a planar interface. By inducing a phase transition in vanadium dioxide films, the resulting changes in refractive index modulate the injection of light into silicon and the ejection out of it. Internal reflection of light propagating inside silicon causes the polarization state to be altered during the phase transition. Possible applications to silicon photonics are discussed.

中文翻译：

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硅和相变材料之间界面的光调制

从理论上和实验上研究了相变材料的薄层，以调节在平面界面处与硅相互作用的光的特性。通过在二氧化钒薄膜中引起相变，所产生的折射率变化可调节光向硅的注入和硅的射出。在硅内部传播的光的内部反射会导致偏振态在相变过程中发生改变。讨论了硅光子学的可能应用。