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

Conference Paper


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.

Publication Date


  • 2000

Citation


  • Zhou, G., Han, J., Zhang, S., Cheng, Z., & Chen, H. (2000). Synthesis, growth and characterization of a new laser upconversion crystal Ba2ErCl7. In Progress in Crystal Growth and Characterization of Materials Vol. 40 (pp. 195-200). doi:10.1016/S0960-8974(00)00025-5

Scopus Eid


  • 2-s2.0-0034610643

Start Page


  • 195

End Page


  • 200

Volume


  • 40

Issue


  • 1

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.

Publication Date


  • 2000

Citation


  • Zhou, G., Han, J., Zhang, S., Cheng, Z., & Chen, H. (2000). Synthesis, growth and characterization of a new laser upconversion crystal Ba2ErCl7. In Progress in Crystal Growth and Characterization of Materials Vol. 40 (pp. 195-200). doi:10.1016/S0960-8974(00)00025-5

Scopus Eid


  • 2-s2.0-0034610643

Start Page


  • 195

End Page


  • 200

Volume


  • 40

Issue


  • 1