Secondary Ion Mass Spectrometry Study of Erbium Titanium Codiffusion in Lithium Niobate

• Type: Article in International Scientific Journal
• Date: 2014

Authors

Jose M M M de Almeida (Author) FCUP; Francisco Marinho (Author) Other; Daniel Alexandre (Author) Other; Cinzia Sada (Author) Other

Journal

Title: IEEE Photonics Technology Letters

Vol. 26

Pages: 1307-1309

ISSN: 1041-1135

Publisher: IEEE

Indexing

ISI Web of Knowledge - 0 Citations

Scopus - 0 Citations

Scientific classification

FOS: Engineering and technology > Electrical engineering, Electronic engineering, Information engineering

Other information

Authenticus ID: P-009-M92

DOI: 10.1109/lpt.2014.2322500

Abstract (EN): A study on the influence of titanium on the diffusion kinetics of erbium in lithium niobate is presented. An empirical linear relation between the diffusion coefficient of erbium and the initial film thickness of titanium was obtained from secondary ion mass spectrometry data. An improvement in the diffusion coefficient by a factor of two was measured for a 200-nm titanium film. Furthermore, the erbium and titanium codiffusion process not only enhances the diffusion of erbium, leading to smaller diffusion time, but also improves the device visibility for further fabrication procedures. This letter is envisioned to clarify in a quantitative way the process of simultaneous codiffusion of erbium and titanium ions into lithium niobate, which has been studied by several authors; nevertheless, no definitive conclusion can be found in the literature.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 3