HoloTile Light Engine: New Digital Holographic Modalities and Applications

TL;DR

HoloTile is a novel holography method that reduces speckle noise and enables high-resolution, versatile applications through rapid hologram generation and new PSF modalities.

Contribution

The paper introduces HoloTile, a patented approach that combines phase-only tiling and PSF shaping to improve holographic image quality and expand application possibilities.

Findings

Achieved high-resolution, speckle-reduced holographic reconstructions.

Developed new PSF options with unique properties.

Demonstrated potential applications in optical trapping, printing, and quantum communication.

Abstract

HoloTile is a patented computer generated holography approach with the aim of reducing the speckle noise caused by the overlap of the non-trivial physical extent of the point spread function in Fourier holographic systems from adjacent frequency components. By combining tiling of phase-only of rapidly generated sub-holograms with a PSF-shaping phase profile, each frequency component - or output "pixel" - in the Fourier domain is shaped to a desired non-overlapping profile. In this paper, we show the high-resolution, speckle-reduced reconstructions that can be achieved with HoloTile, as well as present new HoloTile modalities, including an expanded list of PSF options with new key properties. In addition, we discuss numerous applications for which HoloTile, its rapid hologram generation, and the new PSF options may be an ideal fit, including optical trapping and manipulation of particles, volumetric additive printing, information transfer and quantum communication.