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Growth and luminescence mechanisms of Ba2ErCl7: a new laser up-conversion crystal

Journal Article


Abstract


  • A modified synthesis method for the preparation of Ba2ErCl7, a new laser up-conversion material using Er2O3, BaCl2·2H2O and NH4Cl, is reported for the first time. Single crystals 5-8 mm in diameter and 10-20 mm in length were grown by both the Czochralski and Bridgman methods. The transmittance spectra for a Ba2ErCl7 single crystal was first measured using a HITACHI U-3500 spectrophotometer. There were three intense absorption peaks 4I9/2, 4I11/2 and 4I13/2 in the infrared range which can be excited by 803 and 980 nm and 1.5 μm laser diode (LD), respectively. The cut-off wavelength of the crystal was 230 nm. Intense green luminescence was observed when the crystals were pumped by an 803 nm LD. Up-conversion mechanisms are discussed.

Publication Date


  • 2000

Citation


  • Zhou, G., Han, J., Zhang, S., Cheng, Z., & Chen, H. (2000). Growth and luminescence mechanisms of Ba2ErCl7: a new laser up-conversion crystal. Journal of Crystal Growth, 210(4), 699-703. doi:10.1016/S0022-0248(99)00758-7

Scopus Eid


  • 2-s2.0-0033892146

Start Page


  • 699

End Page


  • 703

Volume


  • 210

Issue


  • 4

Abstract


  • A modified synthesis method for the preparation of Ba2ErCl7, a new laser up-conversion material using Er2O3, BaCl2·2H2O and NH4Cl, is reported for the first time. Single crystals 5-8 mm in diameter and 10-20 mm in length were grown by both the Czochralski and Bridgman methods. The transmittance spectra for a Ba2ErCl7 single crystal was first measured using a HITACHI U-3500 spectrophotometer. There were three intense absorption peaks 4I9/2, 4I11/2 and 4I13/2 in the infrared range which can be excited by 803 and 980 nm and 1.5 μm laser diode (LD), respectively. The cut-off wavelength of the crystal was 230 nm. Intense green luminescence was observed when the crystals were pumped by an 803 nm LD. Up-conversion mechanisms are discussed.

Publication Date


  • 2000

Citation


  • Zhou, G., Han, J., Zhang, S., Cheng, Z., & Chen, H. (2000). Growth and luminescence mechanisms of Ba2ErCl7: a new laser up-conversion crystal. Journal of Crystal Growth, 210(4), 699-703. doi:10.1016/S0022-0248(99)00758-7

Scopus Eid


  • 2-s2.0-0033892146

Start Page


  • 699

End Page


  • 703

Volume


  • 210

Issue


  • 4