Experimental investigation of optical beam deflection based on PLZT electro-optic ceramic

Based on the optical characteristics of PLZT electro-optic ceramic, two kinds of electro-optic deflectors, triangular electrode structure and optical phased array technology, are studied in detail by using transverse electro-optic effect. Theoretically, the electro-optic deflection characteristics and mechanisms of the deflectors are analyzed. Experimentally, the optical characteristics of ceramic wafer, such as the phase modulation, the hysteresis and the electro-induced loss characteristics, are measured firstly, and then the beam deflection experiments are designed to verify the theoretical results. Moreover, the effect of temperature on the performance of triangular electrode deflector is investigated. The characteristics of both deflectors are also compared and illuminated. (c) 2007 Optical Society of America.

HIRFL-CSR高压静电偏转板放电机理的研究

高压静电偏转板是HIRFL-CSR各级加速器注入引出系统的关键器件，对HIRFL-CSR的运行效率起着重要的作用。本文首先对HIRFL-CSR的几块静电偏转板做了一个简单的介绍，然后通过阅读有关资料，在得到一系列可靠数据的基础上，对静电偏转板的放电机理和优化措施进行了归纳和探讨。 本文重点对SFC引出偏转板的高压放电机理和优化进行了深入的研究。利用CST软件进行的电磁场计算表明：在电场和磁场的共同作用下，盖板损伤的发生部位与实际运行中的打火痕迹完全符合。依据相关理论和计算分析，得到了SFC引出偏转板的放电机理。该放电机理可以很合理的解释各实验现象，并将为SFC引出偏转板的改进提供明确的理论依据。 借鉴前人的经验，本文对SFC引出偏转板的改进进行了研究，这包括电场的优化、偏转板各部分的材料选择和表面处理以及盖板结构的改进。依据相关研究和计算分析，这些改进方案的实施可有效地提高SFC引出偏转板的耐压性能