Miroslav Jezek, Nathan; optics.upol.cz/jezek, www.photonoptics.eu/jezek; keywords: Department of Optics, Palacky University, UP, Olomouc, Czech Republic, light, optics, quantum optics, nonlinear optics, optical, wave, quantum, photon, photonics, photonic, laser, vortex, beam, detector, electronics, electronic, multi-photon, teleportation, sub-Rayleigh, imaging;