论文标题
迈向实用的弱测量波前传感：空间分辨率和赤道疗法
Toward practical weak measurement wavefront sensing: spatial resolution and achromatism
论文作者
论文摘要
弱测量波前传感器像Shack-Hartmann传感器一样检测光的相位梯度。然而，使用一个细的双重晶体来置换光束会导致两个极化组件之间的波长依赖性相位差，从而限制了实际应用。使用由两个这样的晶体组成的SAVART板可以补偿相差，并在与儿童延迟结合使用时实现出色的波前传感。我们讨论传感器的空间分辨率，并通过实验重建由模式调制的波前。然后，我们在调制前后获得具有三个不同波长的Zernike系数。我们的工作使这款新的波前传感器更适用于生物医学成像等实际任务。
The weak measurement wavefront sensor detects the phase gradient of light like the Shack-Hartmann sensor does. However, the use of one thin birefringent crystal to displace light beams results in a wavelength-dependent phase difference between the two polarization components, which limits the practical application. Using a Savart plate which consists of two such crystals can compensate for the phase difference and realize achromatic wavefront sensing when combined with an achromatic retarder. We discuss the spatial resolution of the sensor and experimentally reconstruct a wavefront modulated by a pattern. Then we obtain the Zernike coefficients with three different wavelengths before and after modulation. Our work makes this new wavefront sensor more applicable to actual tasks like biomedical imaging.
