Abstract
Absorption, reflection and wavelength modulated reflection spectra were investigated in ZnAl2Se4 crystals. The energy positions of ground and excited states for three excitonic series (A, B and C) were determined. The main parameters of excitons and more precise values of energy intervals V1(Γ7) - C1(Γ6), V2(Γ6) - C1(Γ6) и V3(Γ7) - C1(Γ6) were estimated. Values of splitting due to crystal field and spinorbital interaction were calculated. Effective masses of electrons (m*c1) and holes (m*v1, m*v2, m*v3) were estimated. Reflection spectra contours in excitonic region were calculated using dispersion equations.
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