Stimulated Emission in Zn(Se,S) Single Crystals |
| L. Kowalczyk, A. Mycielski, A. Szadkowski Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warszawa, Poland C. Testelin, C. Rigaux and M. Menant Groupe de Physique des Solides, Universités Paris VI et Paris VII, Tour 23, 2 place Jussieu, 75251 Paris Cedex 05, France |
| Full Text PDF |
| Two different types of optically pumped stimulated emission were observed at 1.8 K in the high quality Zn(Se,S) crystals grown by low temperature physical vapour transport. One type, occurring at moderate excitation levels, is ascribed to the recombination of excitons localized because of chemical disorder in the two-anion mixed crystal. The other type, occurring at high excitation levels, is related to the inelastic exciton-exciton scattering. |
| DOI: 10.12693/APhysPolA.92.871 PACS numbers: 78.45.+h, 78.55.Et, 81.10.Bk |