Diffraction Ring Patterns And Z-Scan Measurements Of The Nonlinear Refraction Index Of 5W20 Oil


Abstract:Nonlinear properties of 5W20 oil have been investigated using the diffraction ring pattern and Z-scantechniques. The nonlinear refractive index was measured by the use of a solid state laser in the CW regimeat wavelength 473 nm. Experimental results show that such a sample has a large, negative, nonlinearrefractive index (n2 = 4.22 x 10-7 cm2/W). The optical power limiting performances for 5W20 oil have beeninvestigated. These results proved that 5W20 oil has significant nonlinear properties and it could be usedfor photonic and nonlinear optical devices.