Elaboration of waveguides in barium titanate by He+ or H+ implantation

✍ Scribed by P. Moretti; A. Helmkamp; P. Thevenard; G. Godefroy

• Publisher: Elsevier Science
• Year: 1991
• Tongue: English
• Weight: 262 KB
• Volume: 9
• Category: Article
• ISSN: 0921-5107
• DOI: 10.1016/0921-5107(91)90076-8

✦ Synopsis

Planar waveguides were produced in single crystals of BaTiO 3 by thermally controlled implantation of helium or hydrogen. Their waveguide properties were investigated by dark line mode spectroscopy. The refractive index profiles were reconstructed by an inverse Wentzel-Kramers-Brillouin (WKB) procedure, and were in good agreement with the ion depth profiles calculated by the TRIM simulation program. Moreover a broad infrared absorption band was found for H ÷-implanted samples.