Substrate mode hologram for high efficient aberration-free coupling between collimated and uncollimated beams

The substrate mode hologram (SMH) design for high efficient and aberration-free direct coupling (in absence of the collimating optics) between collimated and uncollimated beams via totally internally reflected (TIR) beam is presented. Some experimental results are submitted for one particular geometry (plane wave - To - divergent Gaussian wave coupling via substrate; the coupling efficiency 58 %. The proposed method can be implemented in design …