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Blue Green Emission From a Cu ^{+} -Doped Transparent Material Prepared by Sintering Porous Glass

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6 Author(s)
Yanbo Qiao ; Shanghai Inst. of Opt. & Fine Mech., Chinese Acad. of Sci., Shanghai ; Chen, Danping ; Xiaofeng Liu ; Ruan, Jian
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A colorless transparent, blue green emission material was fabricated by sintering porous glass impregnated with copper ions. The emission spectral profile obtained from Cu+ -doped high silica glass (HSG) by 267-nm monochromatic light excitation matches that obtained by pumping with an 800-nm femtosecond laser, indicating that the emissions in both cases come from an identical origin. The upconversion emission excited by 800-nm femtosecond laser is considered to be a three-photon excitation process. A tentative scheme of upconverted emission from Cu+ -doped HSG was also proposed. The glass materials presented herein are expected to find application in lamps, high density optical storage, and three-dimensional color displays.

Published in:

Photonics Technology Letters, IEEE  (Volume:20 ,  Issue: 16 )