Control of coercive field in lithium niobate crystals with repeated polarization reversal

✍ Scribed by Jung Hoon Ro; Doun Jeong; Taeyong Park; Chulhan Kim; Soon-Bok Kwon; Myoungsik Cha; Byeong Cheol Choi; Nanei Yu; Sunao Kurimura; Gyerok Jeon

• Book ID: 103843304
• Publisher: Elsevier Science
• Year: 2005
• Tongue: English
• Weight: 279 KB
• Volume: 120
• Category: Article
• ISSN: 0921-5107
• DOI: 10.1016/j.mseb.2005.02.055

✦ Synopsis

In this study, the amount of decrease in coercive field of congruent lithium niobate during repeated poling and back-poling was measured. The polarization is reversed in 300 ms and then back-poled during the rest period. The coercive field can be decreased around 1 kV/mm with a repeated poling interval of 5 s. As the interval prolonged, the poling field decrease became smaller, and a stretched exponential function is suggested for the experimental fitting resulting in a set of meaningful parameters. These values are essential for the design of high quality domain engineering.