Rate equations were created to describe cooperative quantum cutting phenomena, which incorporated the interactions between donor Tb 3 and acceptor Yb 3 ions. Two judgment criteria were developed for the excitation power dependence and time-resolved luminescence spectra of donor and acceptor ions, which can be used to verify the proposed mechanism. Under the excitation of a 473 nm continuous wave laser, the emission intensities of Tb 3 and Yb 3 increased linearly with the excitation power. The decay curve of Yb 3 indicated two distinct contributions: the fast decay time of its own lifetime, and the slow decay time representing the lifetime of the 5D 4 energy level of Tb 3. The experimental results meet the two judgment criteria, which confirmed the proposed cooperative quantum cutting mechanism in Tb 3-Yb 3 co-doped oxyfluoride glass.
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)