Experimental observation of the far field diffraction patterns of functionalization single and multi-walled carbon nanotubes using nonlinear diffraction technique

الملخص EN

Nonlinear diffraction pattern can be induced by focusing CW laser into a thin quartzes cuvette containing nanofluid.

The number of revealed pattern rings indicates to the nonlinear behavior of fluid.

Here, the nonlinear refractive index of each of functionalized single wall carbon nanotube (F-SWCNTs) suspention and multi wall carbon nanotube (F-MWCNTs) suspention have been investigated experimentally .Each of CNTs suspention was at volume fraction of 13×10−5 and 6×10−5.

Moreover the laser source at wavelength of 473 nm was used.

The results show that SWCNTs suspention possesses higher nonlinearty than other at the same volume fraction