Abstract
Photoconductivity has been found in the dielectric laser materials Yb3+:YAG and Yb3+:Lu2O3 under 940 nm irradiation with an unexpected high photocurrent up to several 100 nanoampères. The nonlinear intensity dependence points to the occurrence of a cooperative upconversion mechanism with 2–3 excited Yb3+-ions in YAG and 2 excited Yb3+-ions in Lu2O3 being involved. According to the results two tentative models of this upconversion process are discussed.
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A. Giesen, H. Huegel, A. Voss, K. Wittig, U. Brauch, H. Opower, Appl. Phys. B 58, 365 (1994)
M. Larionov, K. Schuhmann, J. Speiser, C. Stolzenburg, A. Giesen, in Advanced Solid-State Photonics, Vienna, Austria (2005). TuB49
D. Fagundes-Peters, N. Martynyuk, K. Luenstedt, V. Peters, K. Petermann, G. Huber, S. Basun, V. Laguta, A. Hofstaetter, J. Lumin. 125, 238 (2007)
S.T. Fredrich, D. Fagundes-Peters, V. Peters, V. Laguta, K. Petermann, G. Huber, in 10th Europhysical Conference on Defects in Insulating Materials, Milano, Italy (2006). PMo74
R. Peters, C. Kränkel, K. Petermann, G. Huber, in Advanced Solid-State Photonics, Nara, Japan (2008). MF2
S.T. Fredrich-Thornton, R. Peters, K. Petermann, G. Huber, in Advanced Solid-State Photonics, Denver, USA (2009). TuB18
C.W. Thiel, H. Cruguel, Y. Sun, G.J. Lapeyre, R.M. Macfarlane, R.W. Equall, R.L. Cone, J. Lumin. 94–95, 1 (2001)
S. Kimura, F. Arai, M. Ikezawa, J. Phys. Soc. Jpn. 69, 3451 (2000)
N. Guerassimova, N. Garnier, C. Dujardin, A.G. Petrosyan, C. Pédrini, J. Lumin. 94–95, 10 (2001)
L. van Pieterson, M. Heeroma, E. de Heer, A. Meijerink, J. Lumin. 91, 177 (2000)
I. Kamenskikh, C. Dujardin, N. Garnier, N. Guerassimova, G. Ledoux, V. Mikhailin, C. Pedrini, A. Petrosyan, A. Vasil’ev, J. Phys., Condens. Matter 17, 5587 (2005)
C. Erginsoy, Phys. Rev. 80, 1104 (1950)
U. Wolters, S.T. Fredrich-Thornton, F. Tellkamp, K. Petermann, G. Huber, in CLEO/Europe-EQEC, Munich, Germany (2009). CA9.2
B.G. Yacobi, Semiconductor Materials, An Introduction to Basic Principles (Kluwer Academic/Plenum Publishers, New York, 2003)
K. Petermann, D. Fagundes-Peters, J. Johannsen, M. Mond, V. Peters, J.J. Romero, S. Kutovoi, J. Speiser, A. Giesen, J. Cryst. Growth 275, 135 (2005)
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Brandt, C., Fredrich-Thornton, S.T., Petermann, K. et al. Photoconductivity in Yb-doped oxides at high excitation densities. Appl. Phys. B 102, 765–768 (2011). https://doi.org/10.1007/s00340-010-4369-z
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DOI: https://doi.org/10.1007/s00340-010-4369-z