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Saturated absorption and reverse saturated absorption of Cu:SiO 2 at λ = 532 nm
Author(s) -
Ganeev R. A.,
Ryasnyansky A. I.,
Stepanov A. L.,
Usmanov T.
Publication year - 2004
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200309025
Subject(s) - absorption (acoustics) , saturation (graph theory) , materials science , analytical chemistry (journal) , laser , copper , attenuation coefficient , optics , chemistry , physics , mathematics , chromatography , combinatorics , metallurgy , composite material
Nonlinear absorption in copper‐doped silicate glasses was investigated by the Z‐scan technique using second harmonic radiation of a Nd:YAG laser ( λ = 532 nm, τ = 55 ps). The simultaneous influence of saturated and reverse saturated nonlinear absorption processes was analyzed. The nonlinear absorption coefficient and the saturation intensity of copper‐doped glasses at laser intensity of 5.4 × 10 9 W cm −2 were measured to be 6 × 10 −6 cm W −1 and 4.3 × 10 8 W cm −2 , respectively. (© 2004 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
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