In the continuous pursuit of enhancing the sensitivity of nanophotonic biosensors by leveraging phase phenomena, a recent development involved the engineering of an atomically thin Ge₂Sb₂Te₅ layer on a silver nanofilm to generate large Goos–Hänchen-shifts associated with phase singularities. The resulting detection limit reached ~7 × 10⁻⁷ RIU.

中文翻译：

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纳米光子生物传感的相驱动进展

在不断追求利用相现象来提高纳米光子生物传感器的灵敏度的过程中，最近的一项进展涉及在银纳米薄膜上设计原子级薄的Ge ₂ Sb ₂ Te ₅层，以产生与相奇点相关的大古斯-汉兴位移。所得检测限达到~7 × 10 ^-7 RIU。