Ferroelectric Microdomains in Ti-diffused LiNbO_3 Optical Devices

スポンサーリンク

概要

• 論文の詳細を見る

• Etched hillock density on the -Z plane of a titanium-diffused LiNbO_3 optical device was studied as a function of water vapor content in a diffusion atmosphere of oxygen and argon. It was found that the hillock formation depended greatly upon the water vapor content and the type of carrier gas. Furthermore, the shapes of the hillocks in the devices were observed on a microscopic scale. Scanning electron micrographs (SEM) clearly showed the crystallographic shape of steeple-crowned pyramidal hillocks. The shape of the steeple (i.e., the core) was compared with a cross-sectional view of an etched LiNbO_3 single-crystal c-axis fiber, and it was revealed that the core was a microdomain whose polarization was opposite that of the outer matrix. The mechanisms which cause the microdomains to form during the Ti-diffusion process are also discussed.

• 社団法人応用物理学会の論文
• 1996-01-15

著者

• Miyazawa Shintaro

  Nippon Telegraph And Telephone Corporation Lsi Laboratories

• NOZAWA Toshinori

  Nippon Telegraph and Telephone Corporation, Opto-electronics Laboratories

• Nozawa Toshinori

  Nippon Telegraph And Telephone Corporation Opto-electronics Laboratories

関連論文

• Ferroelectric Microdomains in Ti-diffused LiNbO_3 Optical Devices
• Water Vapor Effects on Titanium Diffusion into LiNbO_3 Substrates

スポンサーリンク