Guidelines for improving laser targeting device in military

The invention of the laser can rightfully be considered one of the most significant discoveries of the 20th century. At the very beginning of the development of this technology, they already predicted a completely universal applicability, from the very beginning the prospect of solving various problems was visible, even though some tasks were not even visible on the horizon at that time. Monochromatic laser radiation can be obtained in principle at any wavelength, both in the form of a continuous wave with a certain frequency and in the form of short pulses lasting up to fractions of a femtosecond. Focusing on the studied sample, the laser beam is subjected to nonlinear optical effects, which allows researchers to perform spectroscopy by changing the frequency of light, as well as to perform coherent analysis of processes by controlling the polarization of the laser beam. Lasers were initially limited more to scientific research and military applications. The report examines the use of laser targeting. Today there are several areas in which the introduction of laser technology in the military industry follows: air, ground and underground location, communications, navigation systems, rifles, missile defense systems. In the report let’s present some of the applications of lasers, as well as protection of the

THE CHANGE OF CONTRAST IS INVESTIGATION OF 75 STEEL SAMPLES LASER MARKED WITH DIFFERENT MODES

The quality of the marked surfaces changes the optical characteristics. The aim of the study is to optimize the contrast in laser marking of Steel 75. The influence of the step in the raster marking and the influence of the repetition frequency of the pulses on the reflection coefficient were analysed. The experimental investigations of the reflectance were carried out using a spectrophotometer. For the marked samples, it was found that when directing electromagnetic radiation with a wavelength in the studied range, there are areas with absorption and reflection of light. The reflectance is plotted as a function of marking step and laser frequency for the marked Steel 75 samples