Article citationsMore>>
Doroshenko, M.E., Jelinkova, H., Basiev, T.T., Jelinek, M., Koranda, P., Nemec, M., Komar, V.K., Gerasimenko, A.S., Badikov, V.V., Badikov, D.V., Vyhlidal, D. and Stoklasa, J. (2011) Fe:ZnSe Laser—Comparison of Active Materials Grown by Two Different Methods. In: Clarkson, A., Hodgson, N. and Shori, R.K., Eds., Solid State Lasers XX: Technology and Devices, Proceedings of SPIE, Vol. 7912, 79122D.
has been cited by the following article:
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TITLE:
Nonlinear Change in Refractive Index and Transmission Coefficient of ZnSe:Fe2+ at Long-Pulse 2.94-μm Excitation
AUTHORS:
Alexander V. Kir’yanov, Nikolai N. Il’ichev, Elmira S. Gulyamova, Alexander S. Nasibov, Peter V. Shapkin
KEYWORDS:
Nonlinear Refractive index, Nonlinear Transmission, Z-Scan Technique, Thermal lens, ZnSe:Fe2+
JOURNAL NAME:
Optics and Photonics Journal,
Vol.5 No.1,
January
20,
2015
ABSTRACT: An
experimental study of the nonlinear changes in refractive index and
transmission coefficient of single-crystal ZnSe:Fe2+, fabricated
through the Fe-diffusion method, at long-pulse (~300 ns), sub-mJ, 2.94-mm
Z-scan probing is reported. As well, a theoretical model based on the
generalized Avizonis-Grotbeck equations is developed and applied for
straightforward fitting of the open- and closed-aperture Z-scans, obtained for
ZnSe:Fe2+ with different Fe2+ centers concentrations. The
modeling results reveal that the contributions in the absorption and refractive
index nonlinearities of ZnSe:Fe2+ are “common” resonant-absorption
saturation (the minor part) and pulse-induced heating of the samples (the major
part), which are strongly dependent on Fe2+ concentrations. Large
values of the index change (>~10-3) and partial
resonant-absorption bleaching (limited by ~50%), both produced via the thermal
effect mainly, are the features of the ZnSe:Fe2+ samples inherent to
this type of excitation.
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