Self diffraction and nonlinear optical properties for 2, 3- Diaminopyridine under cw illumination

Abstract

The nonlinear absorption and refraction indices for 2,3-Diaminopyridine solution were measured using open-and closed-aperture z-scan techniques, with continuous wave (cw) irradiation. Furthermore, diffraction rings pattern as a result of nonlinear refraction was observed. The effect of concentration, wavelength and laser intensity on the nonlinear absorption, nonlinear refraction and diffraction rings are studied experimentally. It is found that the nonlinear refraction and absorption indexes in order of 10 -8 cm 2 /W and10 -3 cm/W, respectively. We suggested an opportunity to form a new nonlinear-optical media for nonlinear optical application.

The gamma radiation effect on the surface morphology and optical properties of alpha-methyl curcumin: PMMA film

“…Researchers have also been working on the manufacturing and synthesis of new materials for the same purposes, such as the phthalocyanine compounds [22,23], the curcuminoids compounds [24][25][26][27], etc. The second path was to develop the nonlinear optical properties of the materials by studying the effect of many parameters on their properties such as the effect of the concentration [28], the wavelength [29], the incident intensity [30], the temperature [31], the salt concentration [32], the glucose concentration [33], the pH concentration [34] to name a few.…”

Modification of surface characteristics of ophthalmic biomaterial-polymethyl methacrylate induced by cobalt 60 gamma irradiation

“…However, the degree and direction of change is extremely sensitive to the material. Many scholars have discovered new materials by studying the effects of various parameters on optical properties, such as concentration [7], wavelength [8], incident intensity [9], temperature [10], salt concentration [11], glucose concentration [12], and pH [13]. The development of radiation technology in the last 15 years, such as the use of gamma radiation technology, has led to the intensive study and improvement of various properties of some materials.…”