Mohamed A Khedr was born in Kalubia, Egypt in 1956. Graduated from Faculty of Science, Physics Dept., Tanta University in 1978. Received both the M.Sc. in the physical phenomena of vacuum arc discharge in 1990and Ph.D. degrees in the micro hollow cathode discharge using Laser and mass spectroscopy in 1995 from physics Dept., Faculty of science Cairo University. Working in the dept. of Laser Science and its Interaction with Matter National Institute of Laser Science Cairo University. Fields of interest; tunable ultrafast laser systems, optical parametric oscillators, thin films, infrared optical detectors, Laser plasma Acceleration.