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Reconfigurable Multistate Optical Systems Enabled by VO2 Phase Transitions
ACS Photonics ( IF 6.5 ) Pub Date : 2020-10-20 , DOI: 10.1021/acsphotonics.0c01241
Xiaoyang Duan 1 , Samuel T. White 2 , Yuanyuan Cui 3 , Frank Neubrech 1 , Yanfeng Gao 3 , Richard F. Haglund 2, 4 , Na Liu 5, 6
Affiliation  

Reconfigurable optical systems are the object of continuing, intensive research activities, as they hold great promise for realizing a new generation of compact, miniaturized, and flexible optical devices. However, current reconfigurable systems often tune only a single state variable triggered by an external stimulus, thus, leaving out many potential applications. Here we demonstrate a reconfigurable multistate optical system enabled by phase transitions in vanadium dioxide (VO2). By controlling the phase-transition characteristics of VO2 with simultaneous stimuli, the responses of the optical system can be reconfigured among multiple states. In particular, we show a quadruple-state dynamic plasmonic display that responds to both temperature tuning and hydrogen-doping. Furthermore, we introduce an electron-doping scheme to locally control the phase-transition behavior of VO2, enabling an optical encryption device encoded by multiple keys. Our work points the way toward advanced multistate reconfigurable optical systems, which substantially outperform current optical devices in both breadth of capabilities and functionalities.

中文翻译:

VO 2相变支持可重构多态光学系统

可重构光学系统是持续不断的密集研究活动的目标,因为它们对于实现新一代紧凑,小型化和灵活的光学设备具有广阔的前景。但是,当前的可重配置系统通常仅调整由外部刺激触发的单个状态变量,因此,遗漏了许多潜在的应用程序。在这里,我们演示了通过二氧化钒(VO 2)中的相变实现的可重构多态光学系统。通过控制VO 2的相变特性通过同时刺激,可以在多个状态之间重新配置光学系统的响应。尤其是,我们展示了一种四态动态等离子体显示器,该显示器对温度调节和氢掺杂均具有响应。此外,我们引入了一种电子掺杂方案来局部控制VO 2的相变行为,从而实现由多个密钥编码的光学加密设备。我们的工作指明了朝着先进的多态可重配置光学系统发展的道路,该系统在功能和功能方面都大大优于当前的光学设备。
更新日期:2020-11-18
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