HoloTile: a new high-speed and speckle-suppressed digital holography modality

Andreas G. Madsen; Jesper Glückstad

doi:10.1117/12.2649823

15 March 2023 HoloTile: a new high-speed and speckle-suppressed digital holography modality

Proceedings Volume 12436, Complex Light and Optical Forces XVII; 1243609 (2023) https://doi.org/10.1117/12.2649823
Event: SPIE OPTO, 2023, San Francisco, California, United States

Abstract

We report on HoloTile, a new approach to speckle-reduced and rapidly generated holograms. By way of an analytical approach to Gaussian beam shaping, we modify the Point Spread Function (PSF) of a holographic system into flat-top squares. The width of each flat-top output “pixel” is determined from the inter-spectral distance arising from designed tiling on a Spatial Light Modulator (SLM). The resultant hologram consists of the product of a once-calculated PSF shaping hologram and a tiled object hologram. With HoloTile, we achieve speckle-reduced reconstructions and extremely fast hologram generation, due to the reduced resolution of the object hologram.

Conference Presentation

Citation Download Citation

Andreas G. Madsen and Jesper Glückstad "HoloTile: a new high-speed and speckle-suppressed digital holography modality", Proc. SPIE 12436, Complex Light and Optical Forces XVII, 1243609 (15 March 2023); https://doi.org/10.1117/12.2649823

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