Xia Fei, Sinefeld David, Li Bo, Xu Chris
Opt Lett. 2017 Mar 15;42(6):1141-1144. doi: 10.1364/OL.42.001141.
We introduce a simple wavefront sensing scheme for aberration measurement of pulsed laser beams in near-infrared wavelengths (<2200 nm), where detectors are not always available or are very expensive. The method is based on two-photon absorption in a silicon detector array for longer wavelengths detection. We demonstrate the simplicity of such implementations with a commercially available Shack-Hartmann wavefront sensor and discuss the detection sensitivity of this method.
我们介绍了一种简单的波前传感方案，用于测量近红外波长（<2200 nm）的脉冲激光束的像差，在这种情况下，探测器并非总是可用或非常昂贵。该方法基于硅探测器阵列中的双光子吸收，用于更长波长的检测。我们用商用夏克-哈特曼波前传感器展示了这种实现方式的简易性，并讨论了该方法的检测灵敏度。
