Curved holographic optical elements from a geometric view point: graphical visualization and parametric optimization

TL;DR

This paper explores the effects of transforming flat holographic optical elements into spherical segments, using numerical experiments and a parametric optimization scheme to improve diffraction characteristics.

Contribution

It introduces a geometric approach to visualize and optimize curved holographic optical elements using a grating vector field model.

Findings

Effective precompensation for diffraction changes achieved

Parametric optimization improves optical performance

Visualization aids in understanding geometric effects

Abstract

We present numerical experiments regarding the diffraction characteristics and their precompensation arising from changing the macroscopic geometry of a flat HOE into a sphere segment. In particular, we discuss a parametric optimization scheme using a grating vector field model which was previously introduced in Ref. 1.