Cooperative luminescence quenching on many-particle acceptors in disordered media
Many-body cooperative energy transfer is an important process in biology, medicine, photosynthesis, rare-earth-doped laser materials, responsible for up- and down-conversion of energy, optical excitation sensitization and relaxation. We present an analytical solution for long-time asymptotic of static luminescence quenching kinetics due to cooperative energy transfer to ensembles of acceptors comprised of two-, three-, and more particles. For cooperative energy transfer and cooperative luminescence quenching to n-body acceptors we have discovered a new law of power d/(nS−(n−1)d) time dependence (d=1,2,3 is the space dimension, S=6,8,10 is the multipolarty of interaction: dipole–dipole, dipole–quadrupole, or quadrupole–quadrupole). The detailed numerical simulation of cooperative quenching by Monte-Carlo method confirms the theoretical result.
Year of publication: |
2012
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Authors: | Basiev, T.T. ; Basieva, I.T. |
Published in: |
Physica A: Statistical Mechanics and its Applications. - Elsevier, ISSN 0378-4371. - Vol. 391.2012, 12, p. 3526-3532
|
Publisher: |
Elsevier |
Subject: | Energy transfer | Down-conversion | Rare-earth ions |
Saved in:
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