Lasers and Optics 
Optical turbulence 
The propagation in air of the short pulse of a high power laser can reach a regime of random filamentation which has been found to be similar to fluid turbulence. It is called "optical turbulence". 

Optical turbulence and the Labyrinth instability 
We claim that there is a common mathematical ground for the "Optical turbulence" and for the "Labyrinth instability" 

Optical turbulence and the activator  inhibitor dynamics 
The selffocusing and the plasma defocusing acts in the Optical Turbulence regime like the activator  inhibitor components of a reaction diffusion system. We find that this parallel can be useful for laser pulse propagation. 

Optical systems properties 
Calculation of wavefront propagation for the "pointspreadfunction" of an optical system with excentric lenses. The initial objective was practical: to find the tolerances of an industrial process of assembling optical devices. I have written a set of codes for optical propagation of geometric rays through surfaces placed arbitrarily in space. Then a series of calculation to reproduce the wave form and a rather complicated method to build the intensity on the plane of incidence. A representation in relief of this result. Everything was original, as that time used to impose to everybody, nothing was already available. Almost nothing has remained, except few pictures. 
