Optical properties of Zn1–xCdxSe/ZnSe quantum well excitons in an electric field: Experiment and model calculations
A set of high quality Zn1−xCdxSe/ZnSe quantum well structures with various well widths and Cd contents as well as Zn1−xCdxSe epilayers are grown by molecular beam epitaxy. Their optical properties are investigated by measuring photoluminescence, reflection, and transmission as a function of a vertically applied electric field. The quantum-confined Stark effect is observed at 5 K and a change in transmission of more than 30% achieved at 300 K. By means of numerical model calculations, the underlying electro-absorption and electro-refraction spectra are deduced and the field-induced change of the relevant exciton parameters (resonance energy, oscillator strength, broadening) derived.
Babucke, H., Egorov, V., Thiele, P., Henneberger, F., Rabe, M., Griesche, J., Hoffmann, N. and Jacobs, K. (1995), Optical properties of Zn1–xCdxSe/ZnSe quantum well excitons in an electric field: Experiment and model calculations. phys. stat. sol. (a), 152: 161–170. doi:10.1002/pssa.2211520116.
physica status solidi (a)