Stimulated and Laser Emission in CdZnTe/CdMnTe Double Quantum Well Heterostructures
L. Kowalczyk, G. Karczewski, T. Wojtowicz and J. Kossut
Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warszawa, Poland
Full Text PDF
Stimulated emission by optical excitation has been investigated in CdZnTe/CdMnTe quantum well heterostructures. Laser action has been achieved at 4.2 K and at 77 K with relatively low threshold values of the excitation intensity. Photοluminescence excitation spectra of the stimulated emission were obtained indicating that the optical gain involves exciton-exci­ton inelastic scattering.
DOI: 10.12693/APhysPolA.88.787
PACS numbers: 78.45.+h, 71.55.Gs