The turn-off fluorescent photoswitches for information encryption are constantly being developed. However, there are no reports about time-switchable (fluorescence lifetime-switchable) encryption to overcome the limitations of tunable encoding numbers in spectrally and temporally encoded libraries. Based on the double-exponential fitting of fluorescence lifetime, we propose, a fatigue-free and highly flexible switch between the amplitude-weighted average fluorescence lifetime ( τm ) and the intensity-weighted average fluorescence lifetime ( τi ), which will realize the supermultiplexed fluorescence lifetime switchable encryption. The potentially enormous library of different fluorescent lifetime combinations would facilitate the development of information security.

中文翻译：

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具有扩大编码容量的纳秒级长短荧光寿命可切换加密

用于信息加密的关断荧光光开关正在不断开发中。然而，没有关于时间可切换（荧光寿命可切换）加密来克服光谱和时间编码库中可调谐编码数的限制的报道。基于荧光寿命的双指数拟合，我们提出在振幅加权平均荧光寿命（ τm ）和强度加权平均荧光寿命（ τi ）之间进行无疲劳且高度灵活的切换，这将实现超多路复用。荧光寿命可切换加密。不同荧光寿命组合的潜在巨大库将促进信息安全的发展。