Materials, Photonic Devices, and Sensors

Multi-imaging characteristics of electrically controlled on-axis holographic polymer-dispersed liquid-crystal Fresnel lens

[+] Author Affiliations
Xiaopeng Wei, Jihong Zheng, Yanan Wang, Zheng Gao, Lijia Sun, Yang Lu, Songlin Zhuang

University of Shanghai for Science and Technology, Engineering Research Center of Optical Instrument and System, Ministry of Education, Shanghai Key Laboratory of Modern Optical System, No. 516, Jungong Road, Yangpu District, Shanghai 200093, China

Opt. Eng. 54(3), 037110 (Mar 26, 2015). doi:10.1117/1.OE.54.3.037110
History: Received December 22, 2014; Accepted March 5, 2015
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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.

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© 2015 Society of Photo-Optical Instrumentation Engineers

Citation

Xiaopeng Wei ; Jihong Zheng ; Yanan Wang ; Zheng Gao ; Lijia Sun, et al.
"Multi-imaging characteristics of electrically controlled on-axis holographic polymer-dispersed liquid-crystal Fresnel lens", Opt. Eng. 54(3), 037110 (Mar 26, 2015). ; http://dx.doi.org/10.1117/1.OE.54.3.037110


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