Abstract
Thespectroscopic and nonlinearproperties of wheat germ oil have been investigated. Two different sources of oil (weight 3.33gm),locally (Emad) and global (Hemani) were used in this work. Theabsorption and fluorescence spectra of the two types of oil were carried out to calculate thequantum efficiencyof them. Nonlinear characteristics were measured by z-scan. The results showed that high quantum efficiency (91.5 for the local oil and 76.6 for the other) As for the non-linear properties, it was measured for wheat germ oil (Emad) by scanning technology (by changing the value of the closed hole (pin hole), the value of (n2) the non-linear refractive index changes with the size of the aperture (1, 1.5, 2, 2.5) mm.
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