Intense optical absorption of defects created in Er 3+-diffused layer in MgO (5 mol%)-doped LiNbO 3 crystal by local Er 3+ diffusion under Li-poor atmosphere

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

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Author(s)

  • De-Long Zhang
  • Shi-Yu Xu
  • Fang Han
  • Ping-Rang Hua
  • Dao-Yin Yu

Related Research Unit(s)

Detail(s)

Original languageEnglish
Pages (from-to)1482-1487
Journal / PublicationJournal of Materials Research
Volume27
Issue number11
Publication statusPublished - 14 Jun 2012

Abstract

Intense broad absorption bands centered around 1.7, 2.5, 3.1, and 3.7 eV take place in Er 3+-diffused layer formed near MgO (5 mol%)-doped LiNbO3 crystal surface by in-diffusion of Er metal under Li-poor atmosphere. These bands are tentatively attributed to the defect absorption of small polarons, bipolarons, F-centers, and Q-polarons created due to Er 3+ in-diffusion and Li2O loss from the crystal. It is interesting that the number, type, area, and peaking position of the bands can be controlled by the diffusion temperature and further oxidation treatment. Such material is a promising medium for data storage based upon two-color holography. © Materials Research Society 2012.

Citation Format(s)

Intense optical absorption of defects created in Er 3+-diffused layer in MgO (5 mol%)-doped LiNbO 3 crystal by local Er 3+ diffusion under Li-poor atmosphere. / Zhang, De-Long; Xu, Shi-Yu; Han, Fang; Hua, Ping-Rang; Yu, Dao-Yin; Yue-Bun Pun, Edwin.

In: Journal of Materials Research, Vol. 27, No. 11, 14.06.2012, p. 1482-1487.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal