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Optical Engineering

Multi-imaging characteristics of electrically controlled on-axis holographic polymer-dispersed liquid-crystal Fresnel lens
Author(s): Xiaopeng Wei; Jihong Zheng; Yanan Wang; Zheng Gao; Lijia Sun; Yang Lu; Songlin Zhuang
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Paper Abstract

This paper reports on the investigation of the electrically controlled multifocus, multi-imaging characteristics of an on-axis holographic polymer-dispersed liquid-crystal (H-PDLC) Fresnel lens. The Fresnel lens is examined within a PDLC cell through the analysis of interference fringes generated by on-axis plane and spherical waves. Experiments are conducted to investigate the multifocus and multi-imaging phenomena of the H-PDLC Fresnel lens, and a corresponding geometrical optical analysis is also provided. It is then demonstrated that the H-PDLC Fresnel lens is a plane-surface diffractive optical device which modulates the phase of incident light through a periodic change of refractive index and forms multiple symmetrical images. Its diffraction properties, which can be controlled electrically, have further potential applications in this field.

Paper Details

Date Published: 26 March 2015
PDF: 6 pages
Opt. Eng. 54(3) 037110 doi: 10.1117/1.OE.54.3.037110
Published in: Optical Engineering Volume 54, Issue 3
Show Author Affiliations
Xiaopeng Wei, Univ. of Shanghai for Science and Technology (China)
Jihong Zheng, Univ. of Shanghai for Science and Technology (China)
Yanan Wang, Univ. of Shanghai for Science and Technology (China)
Zheng Gao, Univ. of Shanghai for Science and Technology (China)
Lijia Sun, Univ. of Shanghai for Science and Technology (China)
Yang Lu, Univ. of Shanghai for Science and Technology (China)
Songlin Zhuang, Univ. of Shanghai for Science and Technology (China)


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