Cation diffusion characteristics in MgO-doped LiNbO 3 during Ti diffusion

Ryoung Han Kim, Hyung-Ho Park, Gi Tae Joo

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

MgO addition in LiNbO 3 single crystals is being actively studied for the usage in optical waveguides because of the resistance against optical damage. MgO was added as a dopant during the powder preparation of LiNbO 3 . Ti films were prepared by e-beam evaporation at room temperature on the mechanically polished Z surface of MgO-doped LiNbO 3 crystals. After Ti film deposition, Ti was in-diffused by annealing. It was observed that Ti diffusion characteristic is strongly influenced by annealing temperature. During Ti diffusion, Li which was influenced by Ti diffusion, diffused out. In the case of Mg, however, its behavior was different from those of Ti and Li, and Mg made an accumulation layer near the surface of LiNbO 3 .

Original languageEnglish
Pages (from-to)570-574
Number of pages5
JournalApplied Surface Science
Volume169-170
DOIs
Publication statusPublished - 2001 Jan 15

Fingerprint

Cations
Positive ions
Annealing
Optical waveguides
Powders
Evaporation
Doping (additives)
Single crystals
Temperature
Crystals

All Science Journal Classification (ASJC) codes

  • Surfaces, Coatings and Films

Cite this

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abstract = "MgO addition in LiNbO 3 single crystals is being actively studied for the usage in optical waveguides because of the resistance against optical damage. MgO was added as a dopant during the powder preparation of LiNbO 3 . Ti films were prepared by e-beam evaporation at room temperature on the mechanically polished Z surface of MgO-doped LiNbO 3 crystals. After Ti film deposition, Ti was in-diffused by annealing. It was observed that Ti diffusion characteristic is strongly influenced by annealing temperature. During Ti diffusion, Li which was influenced by Ti diffusion, diffused out. In the case of Mg, however, its behavior was different from those of Ti and Li, and Mg made an accumulation layer near the surface of LiNbO 3 .",
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Cation diffusion characteristics in MgO-doped LiNbO 3 during Ti diffusion . / Kim, Ryoung Han; Park, Hyung-Ho; Joo, Gi Tae.

In: Applied Surface Science, Vol. 169-170, 15.01.2001, p. 570-574.

Research output: Contribution to journalArticle

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