Abstract
CdS films prepared by using CBD technique, linear optical properties tests measured by UV-3000 Nano from OPTIMA, nonlinear properties contained the nonlinear refractive index and nonlinear absorption coefficient by using single light beam source green semiconductor developed laser (SZ- 303 LASER) with material Nd:YVO4+KTP or Aluminum Alloy, and Wavelength Range is (532 nm), Beam Dimension 6 Meter distance Output Laser spot 18 mm ± 2.0 mm.
Highlights
CdS films prepared by using Chemical Bath Deposition as a preparation technique deposit at different durations started with (30 minutes) and ending in (120 minutes) by adding 30 minutes on every sample
Change in the intensity of the laser beam A concentration by the lens is measured in the second geometry of the z-scan system and as in Figure (1), where the closed aperture is raised and the beam is fully controlled on the detector which measures the change of laser beam intensity according to the sample movement on the propagation direction to calculate Nonlinear absorption
The nonlinear absorption coefficient shows increasing with increasing in time deposit of CdS thin films ant it was in values (3.938, 4.6964, 5.2234, and 5.2898)
Summary
CdS films prepared by using Chemical Bath Deposition as a preparation technique deposit at different durations started with (30 minutes) and ending in (120 minutes) by adding 30 minutes on every sample. CBD technique is the simplest method (Khallaf, 2009) and doesn't costs, it gives a diversified thicknesses at every times that deposition time increased. Samples testes to calculate linear and nonlinear properties and that by using (UV-3000 Nano) to linear optical properties and (Z-scan method) for calculate the nonlinear optical properties. Z-scan technique is amongst the simplest and most sensitive of these techniques. The basic Z-scan technique has been described by Sheik-Bahae, Said, and Van Stryland (1989) and Sheik-Bahae et al (1990), and a brief summary of the theory of the technique is presented here. The most important aspects to be considered for an experimental setup, along with some of the constraints that need to be placed on the design of the setup, will be highlighted (Sheik-Bahae & Hasselbeck, 2000)
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