Characterization of the optical non-linear response of the (E)-4-(4-dimetylaminophenyl) but-3-en-2-one and (E)-4-(4-nitrophenyl) but-3-en-2-one by Z-Scan

2nd Colombian Congress of Electrochemistry; 2nd Symposium on Nanoscience and Nanotechnology

物理学;化学

Rodriguez, K.^1 ; Pérez, A.^1 ; Racedo, F.^1

Universidad Del Atlántico, Barranquilla, Colombia^1

关键词: Concentration levels;    Non-linear optical properties;    Non-linear response;    Nonlinear absorption coefficient;    Nonlinear refractive index;    Opto-electronic materials;    Third order nonlinear optical susceptibility;    UV-vis spectroscopy;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/786/1/012004/pdf
DOI  :  10.1088/1742-6596/786/1/012004

来源: IOP

【 摘 要 】

We presents the study carried out by the technique Z-Scan, to analyse the nonlinear optical properties of (E)-4-(4-dimetylaminophenyl) but-3-en-2-one and (E)-4-(4-nitrophenyl) but-3-en-2-one, diluted in Ethyl Acetate with concentration levels of [0.02M, 0.08M, 0.23M] and [0.0047M, 0.013M, 0.041M] respectively. The measurements were performed using a Nd:YAG laser emitting at 532nm, for samples with Leff=1mm thickness, and a automated scanning of 10cm symmetric to the lens focus, the iris diameter was 1mm, the samples were also characterized by an UV-Vis Spectroscopy. We calculated the nonlinear refractive index (η2), the nonlinear absorption coefficient (β) and the the third-order nonlinear optical susceptibility (χ3) of the two researched compounds. The results show a combination of thermal response and nonlinear self-defocusing and self-focusing, which make their application interesting as new optoelectronic materials.