Abstract: Optical vortex is a type of structured beam with helical phase wavefronts that carry orbital-angular momentum (OAM) with different topological charge numbers. Optical vortex beams are of use ...
MR. BENNETT describes in clear and simple language every step of the process of the making of photogravure prints by the screen plate process, leaving the original dust-grain process with little more ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback