A liquid crystal microlens array with aluminum and graphene electrodes for plenoptic imaging

Yu Lei; Qing Tong; Jun Luo; Xinyu Zhang; Hongshi Sang; Changsheng Xie

doi:10.1117/12.2203644

17 December 2015 A liquid crystal microlens array with aluminum and graphene electrodes for plenoptic imaging

Yu Lei, Qing Tong, Jun Luo, Xinyu Zhang, Hongshi Sang, Changsheng Xie

Proceedings Volume 9811, MIPPR 2015: Multispectral Image Acquisition, Processing, and Analysis; 981102 (2015) https://doi.org/10.1117/12.2203644
Event: Ninth International Symposium on Multispectral Image Processing and Pattern Recognition (MIPPR2015), 2015, Enshi, China

Abstract

Currently, several semiconducting oxide materials such as typical indium tin oxide are widely used as the transparent conducting electrodes (TCEs) in liquid crystal microlens arrays. In this paper, we fabricate a liquid crystal microlens array using graphene rather than semiconducting oxides as the TCE. Common optical experiments are carried out to acquire the focusing features of the graphene-based liquid crystal microlens array (GLCMLA) driven electrically. The acquired optical fields show that the GLCMLA can converge incident collimating lights efficiently. The relationship between the focal length and the applied voltage signal is presented. Then the GLCMLA is deployed in a plenoptic camera prototype and the raw images are acquired so as to verify their imaging capability. Our experiments demonstrate that graphene has already presented a broad application prospect in the area of adaptive optics.

Citation Download Citation

Yu Lei, Qing Tong, Jun Luo, Xinyu Zhang, Hongshi Sang, and Changsheng Xie "A liquid crystal microlens array with aluminum and graphene electrodes for plenoptic imaging", Proc. SPIE 9811, MIPPR 2015: Multispectral Image Acquisition, Processing, and Analysis, 981102 (17 December 2015); https://doi.org/10.1117/12.2203644

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