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北美退伍军人节(Veterans Day),12 日无更新
arXiv 1405.3671physics.opticsquant-ph
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具有弱值的压缩波前传感

Compressive Wavefront Sensing with Weak Values

Gregory A. Howland, Daniel J. Lum, John C. Howell

摘要:

我们展示了一种基于压缩传感、单像素相机的波前传感器。利用高分辨率空间光调制器(SLM)作为可变波片,实现了光场横向位置自由度和偏振自由度的弱耦合。通过在SLM上放置随机的二进制图案,偏振用作直接测量波前的实部和虚部的随机投影的仪表。然后,压缩感测技术可以恢复波前。我们仅从10,000个投影中获取波前的高质量256x256像素图像。光子计数探测器的灵敏度低于皮瓦。

英文摘要:

We demonstrate a wavefront sensor based on the compressive sensing, single-pixel camera. Using a high-resolution spatial light modulator (SLM) as a variable waveplate, we weakly couple an optical field's transverse-position and polarization degrees of freedom. By placing random, binary patterns on the SLM, polarization serves as a meter for directly measuring random projections of the real and imaginary components of the wavefront. Compressive sensing techniques can then recover the wavefront. We acquire high quality, 256x256 pixel images of the wavefront from only 10,000 projections. Photon-counting detectors give sub-picowatt sensitivity.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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