Open AccessStudy on nonlinear absorption and optical limiting properties in an organic material ZnTBP-CA-PhR
Author(s) -
于世瑞,
赵有源,
李潞瑛
Publication year - 2003
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.52.859
Subject(s) - saturable absorption , absorption (acoustics) , materials science , laser , optics , intensity (physics) , nonlinear system , nonlinear optics , limiting , optoelectronics , physics , composite material , fiber laser , mechanical engineering , engineering , quantum mechanics
In this paper the nonlinear absorption in the organic material ZnTBP-CA-PhR is reported. Saturable absorption, reverse saturable absorption and re-reverse saturable absorption under an Ar+ laser beam in visible light range were observed. This material has fine optical limiting properties. Its intensity threshold is lower than that of other materials and there is no nonlinear optical effect before input intensity reaches the threshold. In order to analyse the physical mechanism of nonlinear absorption of this material, a five-level model is presented using the rate equation theory to simulate the saturable absorption and reverse saturable absorption experimental results.