Electrically tunable diffractive optical elements are presented based on two approaches: tunable and switchable DOE and DFB lasers based on holographically patterned LC-polymer composites and on surface relief gratings connected with dielectric elastomer actuator (DEA).

Hadronic elastic and transition form factors are used to describe elastic nucleon-nucleon and pion-nucleon scattering, as well as diffractive excitation of nucleon resonances in an optical model. Very good quantitative agreement with available experimental results is obtained.

In augmented reality diffractive waveguide technology, the light field needs to be collimated before being transmitted into waveguide. Conventional schemes usually require additional collimating optics collimate from micro-image source and guide it in-coupling elements. order meet of head-mounted devices further miniaturize equipment, this paper proposes a device that combines collimation coupl...

The focusing features of a super-Gaussian beam, as well Laguerre-super-Gaussian (1,0) modes with radial and circular polarizations on ring gratings (direct inverse) variable height individual relief rings were investigated in this paper. change the from maximum center to minimum at edges element grating) is considered reverse case, when was (reverse grating). comparison carried out action diffr...