Synthesis, growth and characterization of a new laser upconversion crystal Ba2ErCl7

Guangyong Zhou, Jianru Han, Shujun Zhang, Zhenxiang Cheng, Huanchu Chen

Research output: Contribution to journalConference article

Abstract

A modified method to synthesize the new laser upconversion material Ba2ErCl7 using Er2O3, BaCl2·2H2O and NH4Cl is reported for the first time in this paper. Single crystals up to 5-8 mm in diameter and 10-20 mm in length have been grown by Czochralski method. The transmittance spectra of Ba2ErCl7 single crystal has first been measured by using an HITACHI U-3500 spectrophotometer. There are three intense absorption peaks 4I9/2, 4I11/2 and 4I13/2 in the infrared range which can be excited by 803 nm, 980 nm and 1.5 μm laser diodes (LDs), respectively. The cut-off wavelength of the crystal is 230 nm. Intense green luminescence can be observed when the crystal is pumped by a LD at 803 nm. The formation of the defects is also discussed.

Original languageEnglish (US)
Pages (from-to)195-200
Number of pages6
JournalProgress in Crystal Growth and Characterization of Materials
Volume40
Issue number1
DOIs
StatePublished - Jan 6 2000
Event5th IUMRS International Conference on Advanced Materials, Symposium L: Science and Technology of Artificial Crystals (IUMRS-ICAM'99) - Beijing, China
Duration: Jun 13 1999Jun 18 1999

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics

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