Figure 5
(a) The optical field recorded by Camera 2 when the SLM is displayed a random phase pattern, showing a random speckle pattern. (b) When the SLM was loaded with the optimized phase pattern before calibration, an optical focus was formed with a PBR of ~460. (c) When the SLM was loaded with the optimized phase pattern after calibration, the PBR of the optical focus can be up to ~23000. The scale bars represent 50 μm. The color bars in (a) and (b) are normalized to the peak intensity in (c).
