Search

We present a holographic projection system based on the encoding of computer-generated holograms onto a spatial light modulator. We show how the size, location, and polarization state of the output can be controlled electronically, without physically moving any element. Experimental results are included in all cases

We demonstrate encoding of positive and negative Fresnel diffraction onto a spatial light modulator. This allows the capability to study a propagating beam without moving the detector plane

We generate cylindrically polarized and more complicated variations of polarized light beams using a liquid crystal spatial light modulator and a double-pass architecture by adding additional linear and quadratic phase shifts to the two circular polarization components

We show that the output from wave front coding systems depends critically upon the optical imaging system. Our analysis is based on results using nondiffracting accelerated Airy beams and we show computational results.

Vortex sensing diffraction gratings can analyze the sign and charge value of an incident vortex beam. They allow vortex spectral analysis of fractional vortex beams as well as the output from segmented spiral phase plates.

A 3D lattice of equally intense focus spots can be created using a 3D Dammann structure. We show 4 planar arrays each having 4x4 points using a single pattern.

We report a new type of non-diffracting random intensity pattern that does not change with propagation. Theory and experimental results are shown where we encode the generating pattern onto a phase-only liquid crystal display.