Investigation of focusing and correcting aberrations with binary amplitude and polarization modulation

Fiala Peter; Li Yunqi; Dorrer Christophe

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Investigation of focusing and correcting aberrations with binary amplitude and polarization modulation

机译：具有二元幅度和极化调制的聚焦和校正像差的研究

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We investigate the focusing and correcting wavefront aberration of an optical wave using binary amplitude and polarization modulation. Focusing is performed by selectively modulating the field in different zones of the pupil to obtain on-axis constructive interference at a given distance. The conventional Soret zone plate (binary amplitude profile) is expanded to a polarization Soret zone plate with twice the focusing efficiency. Binary pixelated devices that approximate the sinusoidal transmission profile of a Gabor zone plate by spatial dithering are also investigated with amplitude and polarization modulation. Wavefront aberrations are corrected by modulation of the field in the pupil plane to prevent destructive interference in the focal plane of an ideal focusing element. Polarization modulation improves the efficiency obtained by amplitude-only modulation, with a gain that depends on the aberration. Experimental results obtained with Cr-on-glass devices for amplitude modulation and liquid crystal devices operating in the Mauguin condition for polarization modulation are in very good agreement with simulations. (C) 2018 Optical Society of America

机译：我们研究了使用二进制幅度和偏振调制的光波的聚焦和校正波前像差。通过选择性地调制瞳孔的不同区域中的场来执行聚焦，以在给定距离处获得轴上的构造干扰。传统的SORET区板（二进制幅度曲线）被扩展到偏振SORET区板，其聚焦效率是两倍。还通过幅度和偏振调制来研究近似通过空间抖动来近似加速区域板的正弦传输轮廓的二进制像素化装置。通过对瞳孔平面中的场的调制来校正波前像差，以防止理想聚焦元件的焦平面中的破坏性干扰。偏振调制提高了仅通过幅度调制而获得的效率，其增益取决于像差。用Cr-On-Lock-oldulation型液晶装置获得的实验结果，用于偏振调制的Mauguin条件，非常好于模拟。（c）2018年光学学会

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《Applied optics》 |2018年第4期|共9页
作者
Fiala Peter; Li Yunqi; Dorrer Christophe;
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Univ Rochester Laser Energet Lab 250 East River Rd Rochester NY 14623 USA;

Univ Rochester Laser Energet Lab 250 East River Rd Rochester NY 14623 USA;

Univ Rochester Laser Energet Lab 250 East River Rd Rochester NY 14623 USA;

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Investigation of focusing and correcting aberrations with binary amplitude and polarization modulation

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