• Litty Mathew Irimpan

In the present work, we compare the nonlinear optical properties of ZnO-Cds colloid and self-assembled film by z scan technique. ZnO and Zno-Cds colloid clearly exhibit a negative nonlinear index of refraction at 532 nm and the observed nonlinear refraction is attributed to two photon absorption followed by free carrier absorption. Zno-Cds colloid exhibit reverse saturable absorption whereas the self-assembled film exhibits saturable absorption. These different nonlinear characteristics in the self-assembled films can be mainly attributed to the saturation of linear absorption of the ZnO defect states.

Nanocomposites, Self-assembly, ZnO-CdS, z-scan, Saturable absorption, Reverse saturable absorption

"Effect of Self Assembly on the Nonlinear Optical Properties of ZnO-CdS Nanocomposites", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.9, Issue 7, page no.a266-a271, July-2022, Available :http://www.jetir.org/papers/JETIR2207033.pdf

"Effect of Self Assembly on the Nonlinear Optical Properties of ZnO-CdS Nanocomposites", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.9, Issue 7, page no. ppa266-a271, July-2022, Available at : http://www.jetir.org/papers/JETIR2207033.pdf