Fast-response liquid crystal lens with doping of organic N-benzyl-2-methyl-4-nitroaniline | Zendy

Chi-Yen Huang | Zendy; Mohanraj Kumar | Zendy; Pravinraj Selvaraj | Zendy; Karthick Subramani | Zendy; Brahadeeswaran Srinivasan | Zendy; Che-Ju Hsu | Zendy

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Fast-response liquid crystal lens with doping of organic N-benzyl-2-methyl-4-nitroaniline

Author(s) -

Chi-Yen Huang,

Mohanraj Kumar,

Pravinraj Selvaraj,

Karthick Subramani,

Brahadeeswaran Srinivasan,

Che-Ju Hsu

Publication year - 2020

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.390001

Subject(s) - dopant , materials science , liquid crystal , doping , lens (geology) , absorbance , optics , rotational viscosity , crystal (programming language) , optoelectronics , numerical aperture , wavelength , analytical chemistry (journal) , organic chemistry , chemistry , physics , computer science , programming language

In this study, a large-aperture hole-patterned liquid crystal (LHLC) lens was prepared from a mixture of nematic liquid crystal (NLC, E7) and organic material (N-benzyl-2-methyl-4-nitroaniline, BNA). The electro-optic properties of doped and undoped samples were measured, compared, and analyzed. The doped sample exhibited a response time that was ∼6 times faster than that of the undoped sample because BNA doping decreased the rotational viscosity of the NLC. BNA dopant effectively suppressed the RMS error of LHLC lens addressed at the high voltage. Furthermore, the BNA dopant revealed a considerable absorbance for short wavelengths (< 450 nm), automatically providing the LHLC lens with a blue light filtering function for ophthalmic applications.

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