Han Chan-Hee, Eo Hyeonseok, Choi Tae-Hoon, Kim Wook-Sung, Oh Seung-Won
Department of Electrical Information Communication Engineering, Kangwon National University, Samcheok, Gangwon, 25913, Republic of Korea.
Department of Electrical Engineering, POSTECH, Pohang, 37673, Republic of Korea.
Sci Rep. 2022 Jul 5;12(1):11384. doi: 10.1038/s41598-022-15636-2.
Using a single substrate, we demonstrate a simple two-dimensional (2-D) phase grating cell with an octothorp electrode. Owing to the large spatial phase difference in any direction, the proposed grating cell has a high haze value in the opaque state (76.7%); Moreover, it has the advantages of a one-dimensional (1-D) phase grating cell, such as high fabricability, fast response time, and low operating voltage. Furthermore, the proposed grating cell has a faster response time than the 2-D grating cell (comparable to a 1-D grating cell). All the electro-optic parameters have been calculated using a commercial modeling tool. Consequently, we expect our proposed grating cell to find applications in virtual reality (VR)/augmented reality (AR) systems or window displays with fast response times.
使用单一基板，我们展示了一种带有井号电极的简单二维（2-D）相位光栅单元。由于在任何方向上都存在较大的空间相位差，所提出的光栅单元在不透明状态下具有较高的雾度值（76.7%）；此外，它具有一维（1-D）相位光栅单元的优点，如高可制造性、快速响应时间和低工作电压。此外，所提出的光栅单元比二维光栅单元具有更快的响应时间（与一维光栅单元相当）。所有电光参数均使用商业建模工具进行了计算。因此，我们期望我们提出的光栅单元能够在虚拟现实（VR）/增强现实（AR）系统或具有快速响应时间的窗口显示器中得到应用。
