1. Anti-escaping of incident laser in rare-earth doped fluoride ceramics with glass forming layer
- Author
-
J. X. Yang, Xin Zhao, Peijian Lin, Yu Song, Jinliang Yuan, H. F. Shi, Edwin Yue-Bun Pun, and Hao Lin
- Subjects
Materials science ,Analytical chemistry ,Quantum yield ,lcsh:Medicine ,02 engineering and technology ,Laser pumping ,010402 general chemistry ,01 natural sciences ,Article ,law.invention ,chemistry.chemical_compound ,law ,Ceramic ,Fluorescence spectroscopy ,Absorption (electromagnetic radiation) ,lcsh:Science ,Multidisciplinary ,Optoelectronic devices and components ,lcsh:R ,021001 nanoscience & nanotechnology ,Laser ,0104 chemical sciences ,chemistry ,visual_art ,visual_art.visual_art_medium ,lcsh:Q ,Diffuse reflection ,0210 nano-technology ,Fluoride ,Layer (electronics) - Abstract
Adaptive fluoride ceramic with glass forming layer (GCZBL-Er) used in laser anti-escaping has been prepared by one-step synthesis, and the thickness of glass layer is identified as ~0.41 mm. Blue, green and red emissions of Er3+/Yb3+ codoped fluoride ceramic (CZBL-Er) and glass layer (GZBL-Er) have been investigated under ~980 nm laser pumping. With the forming of thin glass layer on ceramic surface, the absorption intensities on diffuse reflection of GCZBL-Er at 974 nm and 1.53 μm increase by 48% and 53% than those of CZBL-Er. Excited by a 979 nm laser, the presence of the glass layer increases the absolute absorption rate in spectral power from 75% in CZBL-Er to 83% in GCZBL-Er, which is consistent with the improvement in the absorbed photon number. In addition, the quantum yield of GCZBL-Er complex is raised by 28.4% compared to the case of ceramic substrate by photon quantification. Intense absorption-conversion ability and efficient macroscopical anti-escaping effect confirm the superiority of ingenious structure in the fluoride ceramics with glass forming layer, which provides a new approach for developing the absorption-conversion materials of anti-NIR laser detection. more...
- Published
- 2019
- Full Text
- View/download PDF