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Proceedings Paper

Fabrication of diffractive axilens for multiplane holographic projection
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Paper Abstract

In a traditional Fourier holographic projection, a clear reconstructed image is formed only in the focal plane of the Fourier lens. In this paper, we propose a novel method to form simultaneously holographic reconstructed images in good focus located at different continuous planes. The phase profile of the hologram is superimposed with the phase of diffractive axilens to obtain a new diffractive phase element (DPE). We use laser direct write lithography system to fabricate the desired DPE with smaller feature sizes of pixels. A comparative experiment is carried out to observe reconstructed images of superposition of the axilens phase and Fresnel lens phase on the phase hologram, respectively. Finally, the DPEs are drawn in a photoresist of glass substrate by laser direct write lithography technology, in which only a limited number of quantized phase levels m are achieved (e.g., m=2 , m=4 ). Our experiment results revealed that the approximate clear holographic images can be observed simultaneously on multiple planes by using the DPE, which is in good agreement with the simulations.

Paper Details

Date Published: 18 December 2019
PDF: 6 pages
Proc. SPIE 11335, AOPC 2019: Display Technology and Optical Storage, 113350G (18 December 2019); doi: 10.1117/12.2547961
Show Author Affiliations
Chuan Shen, Anhui Univ. (China)
QingQing Hong, Anhui Univ. (China)
JianYong Chen, Anhui Univ. (China)
Sui Wei, Anhui Univ. (China)

Published in SPIE Proceedings Vol. 11335:
AOPC 2019: Display Technology and Optical Storage
Byoungho Lee; Yongtian Wang; Xiaodi Tan, Editor(s)

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