Journal of Advanced Chemical Engineering

Laser Science and Interaction Department, National Institute of Laser Enhanced Sciences, Cairo University, Egypt

Biography

Mohamed A Khedr Graduated from Faculty of Science,  Physics Deptartment, Tanta University. Received both the M.Sc. degree in Experimental physics study the physical phenomena of vacuum arc discharge from physics Dept., Faculty of science Cairo university. Ph.D. degree in study Physical properties of micro hollow cathode discharge using Laser and mass spectroscopy,  from physics Dept. Cairo University. 
 

Publications

• Research Article   
  Effect of Incident FS Laser Power onto Gold Thin Films Deposited by PLD Techniques
  Author(s): Atwee T*, Khedr MA, Fathy N and Badr Y
  
  Gold thin films with different incident femtosecond laser power were elaborated by pulsed laser deposition techniques (PLD) in order to evaluate the effect of incident femtosecond laser pulse onto the formation and the homogeneity of the deposited thin films. The laser pulses that are used for this study are 800 nm wavelength, 20 fs pulse duration time and the repetition rate 1 kHz. The data of thin films were carried at incident femtosecond laser power 400, 500, 600 and 750 mW, pressure 0.3 m Torr and target substrate distance 6.5 cm. Glass substrate kept at temperature 200°C during the deposition time are used. The deposited Au thin films are characterized by atomic force microscopy (AFM), scanning electron Microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX). The experimental data shows a nice formed gold films with developing of particle shape and size which increas.. View more»
  

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