Fabrication of diffractive axilens for multiplane holographic projection

Chuan Shen; QingQing Hong; JianYong Chen; Sui Wei

doi:10.1117/12.2547961

18 December 2019 Fabrication of diffractive axilens for multiplane holographic projection

Chuan Shen, QingQing Hong, JianYong Chen, Sui Wei

Proceedings Volume 11335, AOPC 2019: Display Technology and Optical Storage; 113350G (2019) https://doi.org/10.1117/12.2547961
Event: Applied Optics and Photonics China (AOPC2019), 2019, Beijing, China

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.

Citation Download Citation

Chuan Shen, QingQing Hong, JianYong Chen, and Sui Wei "Fabrication of diffractive axilens for multiplane holographic projection", Proc. SPIE 11335, AOPC 2019: Display Technology and Optical Storage, 113350G (18 December 2019); https://doi.org/10.1117/12.2547961

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KEYWORDS

3D image reconstruction

Holography

Holograms

Double patterning technology

Direct write lithography

Fresnel lenses

Spatial light modulators

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