This paper presents an express technique for determining the diffusion coefficients of chromium in ZnSe, using a Tm:YLF laser that emits at 1.908 ?m. The diffusion coefficients of chromium in ZnSe obtained by deposition from the vapor phase are determined to be D=(9.5±0.6)×10<sup>?9</sup>??cm<sup>2</sup>/s and D=(1.0±0.1)×10<sup>?9</sup>??cm<sup>2</sup>/s at 1100°C and 900°C, respectively. The absorption cross section of Cr<sup>2+</sup> ions in zinc selenide at 1.908 ?m was 4.6×10<sup>?19</sup>??cm<sup>2</sup>.
© 2013 Optical Society of America
Original Manuscript: November 20, 2012
Published: May 21, 2013
S. A. Rodin, S. S. Balabanov, E. M. Gavrishchuk, and O. N. Eremeykin, "Using a Tm:YLF laser to determine the diffusion coefficient of chromium in ZnSe," J. Opt. Technol. 80, 325-328 (2013)