Wang, Rongping; Muto, H; Gang, X; Jin, P; Tazawa, M
We have prepared high-quality zinc oxide (ZnO) films by using laser ablation and magnetron sputtering. The deep-level emission free spectra have been obtained for ZnO films on both sapphire and fused silica. It was found that the stimulated emission and band-edge emission were sensitive to the quality of the ZnO films. Strong band-edge emission can be achieved and the stimulated emission can be excited at low threshold excitation density of 7 W/cm 2 in single crystal ZnO films. By using special...[Show more]
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