Abstract
Crystals of the composition Ca1–x Er x F2 + x (0 < x ≤ 0.02) have been grown from the melt by the Bridgman method. The absorption, luminescence excitation, and photoluminescence spectra of this material in the case of the Stokes and anti-Stokes mechanisms of the optical excitation from two radiation sources simultaneously have been analyzed. It has been found that the visible luminescence manifests itself upon sequential absorption of two resonance infrared photons with different energies. This effect is associated with the fact that, in this material, there are metastable states of the excited levels 4 I 11/2 of the Er3+ ions, from which transitions to higher energy levels occur due to the absorption of infrared photons.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
R. Brede, E. Heumann, J. Koetke, T. Danger, G. Huber, and B. Chai, Appl. Phys. Lett. 63 (15), 2030 (1993).
F. Auzel, Chem. Rev. 104, 139 (2004).
L. E. Bausá, G. Lifante, E. Daran and P. L. Pernas, Appl. Phys. Lett. 68 (23), 3242 (1996).
P. Rogin and J. Hulliger, J. Cryst. Growth 172, 200 (1997).
S. Kh. Batygov, L. A. Kulevskii, A. M. Prokhorov, A. D. Savel’ev, V. V. Smirnov, and V. V. Osiko, Kvantovaya Elektron. (Moscow) 1, 2633 (1974).
D. N. Karimov, O. N. Komar’kova, N. I. Sorokin, V. A. Bezhanov, S. P. Chernov, P. A. Popov, and B. P. Sobolev, Crystallogr. Rep. 55 (3), 518 (2010).
A. M. Prokhorov, A Reference Book on Lasers (Sovetskoe Radio, Moscow, 1978), Vol. 2 [in Russian].
P. Le Boulanger, J.-L. Doualan, S. Girard, J. Margerie, and R. Moncorgé, Phys. Rev. B: Condens. Matter 60 (16), 11380 (1999).
R. Brede, E. Heumann, J. Koetke, T. Danger, and G. Huber, Appl. Phys. Lett. 63 (15), 2030 (1993).
J. Koetke and G. Huber, Appl. Phys. B 61 (2), 151 (1995).
A. N. Gruzintsev, Inorg. Mater. 50 (8), 821 (2014).
A. N. Gruzintsev, Inorg. Mater. 50 (1), 58 (2014).
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © A.N. Gruzintsev, D.N. Karimov, 2017, published in Fizika Tverdogo Tela, 2017, Vol. 59, No. 1, pp. 116–120.
Rights and permissions
About this article
Cite this article
Gruzintsev, A.N., Karimov, D.N. Two-photon excitation of the anti-Stokes photoluminescence of Ca1–x Er x F2 + x crystals. Phys. Solid State 59, 120–125 (2017). https://doi.org/10.1134/S1063783417010103
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1063783417010103