Papers by Keyword: Laser Energy Density

Abstract: This paper studies multi-sensor laser energy density measurement systems. The system uses a diffuse target surface placed in a plurality of optical probes, for each of the energy value of a particular feature. Meanwhile, the use of the energy density of the external synchronizing the camera imaging the target surface, and finally through a spot on the target surface characteristic measuring the energy value of the integration of the imaging information and the target plate, to give the far field distribution of the laser energy density received.

Abstract: Barium dititanate (BaTi2O5) films were prepared on MgO (100) substrate by pulsed laser deposition under various laser energy densities. The effect of laser energy on crystallinity, orientation and surface morphology was investigated. The preferred orientation of the as-deposited films changes from (710) to (020) with decreasing laser energy, and the surface morphology is different depending on laser energy too. The b-axis oriented BaTi2O5 film could be obtained at the laser energy density of 2J/cm2, where the film shows a dense surface with an elongated granular texture.