Multiplexing Nonvolatile Holograms in LiNbO3:Cu:Ce Crystals

• 来源期刊: 中国物理快报（英文版）
• 年，卷（期）: 2003,（3）
• 页码范围: 377-378
• 页数: 2页
• 语种: 英文

摘要

A practical experimental system for two-centre recording by angular multiplexing and 90° geometry is designed with red and blue light. The erasure mechanism of lithium niobate crystals doubly doped with copper and cerium for two-centre recording is discussed and a modified decremental recording schedule for angular multiplexing is proposed subsequently. Finally, 50 nonvolatile holograms with almost the same diffraction efficiency are recorded.