Diffraction ring patterns and Z-Scan measurements of the nonlinear refraction index of 5W20 oil

الملخص EN

Nonlinear properties of 5W20 oil have been investigated using the diffraction ring pattern and Z-scan techniques.

The nonlinear refractive index was measured by the use of a solid state laser in the CW regime at wavelength 473 nm.

Experimental results show that such a sample has a large, negative, nonlinear refractive index (n2 = 4.22 x 10-7 cm2/W).

The optical power limiting performances for 5W20 oil have been investigated.

These results proved that 5W20 oil has significant nonlinear properties and it could be used for photonic and nonlinear optical devices.