Open AccessModeling population and thermal lenses in the presence of Auger Upconversion for Nd^3+ doped materials
Author(s) -
Erving Ximendes,
W. F. Silva,
M. V. D. Vermelho,
N. G. C. Astrat,
L. C. Malacarne,
Mauro Luciano Baesso,
T. Catunda,
Carlos Jacinto
Publication year - 2015
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.23.015983
Subject(s) - photon upconversion , excited state , auger , population , optics , materials science , doping , dopant , auger effect , thermal , atomic physics , optoelectronics , physics , demography , sociology , meteorology
We present a theoretical model to thermal (TL) and population (PL) lenses effects in the presence of Auger upconversion (AU) for analysis of Nd(3+) doped materials. The model distinguishes and quantifies the contributions from TL and PL. From the experimental and theoretical results, the AU cannot be neglected because it plays an important role on the excited state population and therefore on the temperature and polarizability difference between excited and ground states. Considering the extensive use of these techniques, the model presented here could be useful for the investigation of materials and also to avoid misleading analysis of lenses transients.