The Generali zed Lorenz-Mie theory (GLMT), more generally GLMTs [1], has been initially developed to address issues in optical particle characterization, more particularly in optical particle sizing, in order to simultaneously measure velocities and sizes of individual particles Embedded in flows, with applications to spray combustion or plasma spraying, among others. This line of research, however, had two opportunités to meet another line of research, namely the one of Arthur Ashkin dealing with optical levitation, trapping and manipulation of macroscopic particles. The first opportunity has been that GLMT (more generally GLMTs) is able to deal with mechanical effects of light and indeed bridged the gap between the Rayleigh and ray optics regimes to which the theoretical part of the work of Arthur Ashkin was limited. The second opportunity has been that optical levitation experiments promoted by Arthur Ashkin have been used to experimentally test the validity of the GLMT. In this talk, as a celebration of Arthur Ashkin’s pioneering work concerning the mechanical effects of laser light, I shall offer a review and overview devoted to GLMTs and mechanical effects of laser light, both in Rouen (France) where the GLMT has been built, and all over the world.

For long time, organ silicon thin films have a great interest in many applications that are based on the surface modification. Recently more attention has been focused to the use of organ silicon thin films with embedded metallic Nano-sized particles as biocide films. In this study, ZnO Nanoparticles have been deposited with organic films by plasma discharge in order to elaborate biocide thin films. Tow deposited methods have been combined in order to elaborate biocide films. Dielectric barrier discharge (DBD) and plasma enhanced chemical vapor deposition (PECVD). The plasma discharge used is generated by a AC power source with frequency of about 19 kHz using HMDSO as plasma gas and ZnO powder. Bacillus bacteria in Muller Hinton environment has been used in order to exhibit the biocide properties of deposited films. It has been observed that almost all species are eliminated.

For many years, scientists - physicists have tried to measure the speed of light. Galileo - in the seventeenth century. Early experiment to measure the speed of light was held Ole Roemer, a Danish physicist, in 1676. Another, more accurate way to measure the speed of light is made in Europe Hippolyte Fizi in 1849. Francois Arago determines the speed of light in 1838 by a rotating mirror. In 1862, on the production of the speed of light worked Leon Foucault. In 1926, a result of years of efforts Albert Michelson has had some very high accuracy of the speed of light: с = 299 796 000±4 000 m/s. The main and paradoxical conclusion in the study was his invariance speed of light. In other words, the speed of light is the same in all inertial frames of reference is independent of the velocity of the observer and emitter. This surprising fact for the classical physics of his time for the first time proved the Michelson experiment: the independence of the speed of light on the direction (isotropic) and the orbital motion of the Earth around the sun. In the future, this paradox was confirmed by astronomers. In particular, Willem de Sitter in monitoring the spectral binaries found that the speed of light flux from removing the stars and approaches are constant speed of light (c) and equal to each other. That is, they do not depend on the rate of the star (light sources). From the point of view of classical physics this paradox so far can’t be explained. Therefore, on the basis of the unknown properties of light in 1905, Einstein proposed the special theory of relativity (STR) in the paper “On the Electrodynamics of Moving Bodies”

Relativity and quantum mechanics remain two very binding things and are both separating either by method or by physical experience. In this section I will make an approach to better facilitate a connection between quantum mechanics and relativity that gives us a new vision on the fact that the two concepts can be related theoretically and experimentally to give birth to the new principles in the physical theory and to better improve theoretical and experimental research. The new conception of this principle develops scientific and technical research better. In this subject I was supposed to use more advanced methods and more develop to have a complete and satisfactory analysis of the problem for that I exploit quantum techniques peculiar to my subject which will allow me to better understand all the problems related to the quantum mechanics and relativity and try to bring them together in the same subject and in the same relationship which is the relationship that is to consider for this big problem to complicate and finally arriving at a final result.