skip to main content

Title: Absolute quantum cutting efficiency of Tb{sup 3+}-Yb{sup 3+} co-doped glass

The absolute quantum cutting efficiency of Tb{sup 3+}-Yb{sup 3+} co-doped glass was quantitatively measured by an integrating sphere detection system, which is independent of the excitation power. As the Yb{sup 3+} concentration increases, the near infrared quantum efficiency exhibited an exponential growth with an upper limit of 13.5%, but the visible light efficiency was reduced rapidly. As a result, the total quantum efficiency monotonically decreases rather than increases as theory predicted. In fact, the absolute quantum efficiency was far less than the theoretical value due to the low radiative efficiency of Tb{sup 3+} (<61%) and significant cross-relaxation nonradiative loss between Yb{sup 3+} ions.
Authors:
 [1] ; ;  [1] ;  [2] ;  [3] ;  [1] ;  [2] ;  [4]
  1. Condensed Matter Science and Technology Institute, Harbin Institute of Technology, Harbin 150001 (China)
  2. (China)
  3. School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001 (China)
  4. (United States)
Publication Date:
OSTI Identifier:
22258702
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 114; Journal Issue: 21; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; CONCENTRATION RATIO; CUTTING; DOPED MATERIALS; EXCITATION; GLASS; QUANTUM EFFICIENCY; RELAXATION; SPHERES; TERBIUM IONS; YTTERBIUM IONS