Wavelength-multiplexed submicron holograms for disk-compatible data storage

Discontinued Devices LC 2002 Spatial Light Modulators
Digital-/ Computer Holography/ CGH
Published on:
Authors: Pengfei Wu, Zhiqiang Liu, Jame J. Yang, Angel Flores, and Michael R. Wang
Abstract:

“By using a hybrid diffractive and refractive achromat with extended depth of focus, we have successfully recorded a micro-hologram array with diffraction-limited individual spot size maintained throughout the thickness of recording medium. An electrically programmable wavelength combiner was constructed in which a white light source was adopted. By modifying on a commercial CD readout head, we configured a compact micro-hologram recording/readout system that is compatible to existing disk storage technology. Base on the wavelength combiner and recording/readout system, wavelength-multiplexed micro-holograms were recorded and recovered. The presented results demonstrate the practicality of our novel storage architecture.”

Open Access

Publication: Optics Express
Issue/Year: Optics Express, Vol. 15, Issue 26, pp. 17798-17804
DOI: 10.1364/OE.15.017798
Link: https://doi.org/10.1364/OE.15.017798

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