Fig. 3: Wavefront shaping helps focus a beam deep inside the homemade phantom. | Light: Science & Applications

Fig. 3: Wavefront shaping helps focus a beam deep inside the homemade phantom.

From: Enhance the delivery of light energy ultra-deep into turbid medium by controlling multiple scattering photons to travel in open channels

Fig. 3

a When illuminating the phantom with a plane wave, the beam becomes more defocused with depth; however, if it is illuminated with matched wavefront, the beam can achieve focus even deep inside the phantom. b–f show the beam intensity patterns at the depths of 2.4, 4.8, 7.2, 9.6, and 14.4 SMFP without wavefront shaping. g, h show the beam intensity patterns at the depth of 9.6, and 14.4 SMFP when wavefront shaping is employed. i shows the magnified views of areas enclosed by yellow dashed lines in (e–h). The color scale bar is the normalized relative intensity

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