Gao Hongyue, Liu Jianhua, Gan Fuxi, Ma Bo
State Key Laboratory for Advanced Photonic Materials and Devices, Department of Optical Science and Engineering, Fudan University, Shanghai 200433, China.
Appl Opt. 2009 Jun 1;48(16):3014-8. doi: 10.1364/ao.48.003014.
We report multiple holographic recording and optical address recognition schemes in Methyl Red-doped liquid-crystal film without an applied electric field. Ten gratings are recorded at a single location of a 5 mm2 area by using optical multiplexing methods, and the diffraction efficiencies are studied for multiplexed gratings. Diffraction behavior of angular and peristrophic multiplexed gratings is discussed, and two methods that involve recording angles and peristrophic rotation angles are presented for optical recognition.
我们报道了在未施加电场的甲基红掺杂液晶膜中的多种全息记录和光学地址识别方案。通过使用光学复用方法，在5平方毫米区域的单个位置记录了十个光栅，并对复用光栅的衍射效率进行了研究。讨论了角度复用和周向复用光栅的衍射行为，并提出了两种涉及记录角度和周向旋转角度的光学识别方法。
