Abstract
Tunable mid-infrared light is an efficient tool for probing molecular structures and medium energy bondings in various materials. Cr2+-dopped ZnSe is widely used for diode-pumped laser operation in the 2-3 μm wavelength range [1]. Due to its electrical properties, this material is also identified as a good candidate for electrically pumped emission. We report mid-infrared electroluminescence observed at room-temperature from a bulk ZnSe:Cr single crystal [2]. From a technological point of view, the ZnSe samples (typical dimensions 10 × 10 × 0.6 mm3) are Cr2+-doped up to concentrations of 1019cm−3, and gold electrodes are evaporated on both faces (Fig. 1). The light emission is obtained in an avalanche regime (corresponding to an impact ionization process), with a first-run electro-optical conversion efficiency of ~10−6 for an applied field of ~20kV.cm−1 (Fig. 2a).
© 2007 IEEE
PDF ArticleMore Like This
V P. Sirkeli, O. V Kulikova, L. L. Kulyuk, R. Laiho, E. Ldhderanta, D. D. Nedeoglo, N. D. Nedeoglo, A. V Siminel, R L. Sobolevskay, and K.D. Sushkevich
CE_26 The European Conference on Lasers and Electro-Optics (CLEO/Europe) 2007
V.V. Fedorov, I. Moskalev, L. Luke, A. Gallian, and S.B. Mirov
WB21 Advanced Solid-State Photonics (ASSL) 2006
N. Vivet, M. Morales, M. Levalois, J.L. Doualan, and R. Moncorgé
CE8_1 The European Conference on Lasers and Electro-Optics (CLEO/Europe) 2007