Large-angle two-dimensional grating with hybrid mechanisms

Zou Junyu; He Ziqian; Yang Qian; Yin Kun; Li Kun; Wu Shin-Tson

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Large-angle two-dimensional grating with hybrid mechanisms

机译：具有混合机制的大角度二维光栅

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We demonstrate a large-diffraction-angle two-dimensional (2D) grating based on cholesteric liquid crystal (CLC). One dimension is a polarization volume grating (PVG) working in the Bragg regime, which is produced by a patterned photoalignment layer. The other dimension is a CLC grating working in the Raman-Nath regime, which is introduced by CLC self-assembly under a weak anchoring energy condition. The condition for the coexistence of the CLC Raman-Nath grating (RNG) and PVG is analyzed, and the efficiency and grating period of the CLC RNG are also characterized. Potential application of this 2D grating for enlarging the eyebox of augmented reality displays is discussed. (C) 2021 Optical Society of America

机译：我们展示了一种基于胆甾相液晶（CLC）的大衍射角二维光栅。一维是工作在布拉格区的偏振体光栅（PVG），由图案化光对准层产生。在CLC弱能区，自锚定光栅是在CLC弱能区引入的。分析了CLC-Raman-Nath光栅（RNG）和PVG共存的条件，并对CLC-RNG的效率和光栅周期进行了表征。讨论了这种二维光栅在增强现实显示器眼箱放大中的潜在应用。（2021）美国光学学会

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来源
《Optics Letters》 |2021年第4期|共4页
作者
Zou Junyu; He Ziqian; Yang Qian; Yin Kun; Li Kun; Wu Shin-Tson;
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Univ Cent Florida Coll Opt &

Photon Orlando FL 32816 USA;

Univ Cent Florida Coll Opt &

Photon Orlando FL 32816 USA;

Univ Cent Florida Coll Opt &

Photon Orlando FL 32816 USA;

Univ Cent Florida Coll Opt &

Photon Orlando FL 32816 USA;

GoerTek Electronics 5451 Great Amer Pkwy Suite 301 Santa Clara CA 95054 USA;

Univ Cent Florida Coll Opt &

Photon Orlando FL 32816 USA;

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正文语种 eng
中图分类计量学;光学;
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Large-angle two-dimensional grating with hybrid mechanisms

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