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Controlling light in scattering media

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Compar<strong>in</strong>g experimental to expected focus<br />

Target<br />

Expected focus<strong>in</strong>g from<br />

measured<br />

O foc<br />

norm<br />

1<br />

Experimental focus<strong>in</strong>g<br />

Experimental Last Image (B<strong>in</strong>n<strong>in</strong>g)<br />

10<br />

20<br />

30<br />

40<br />

50<br />

60<br />

70<br />

80<br />

10<br />

20<br />

30<br />

40<br />

50<br />

60<br />

70<br />

80<br />

0.9<br />

20<br />

0.8<br />

40<br />

0.7<br />

60<br />

0.6<br />

0.580<br />

0.4<br />

100<br />

0.3<br />

120<br />

0.2<br />

140<br />

0.1<br />

50 100 150 50 200 250100 300 350 150400<br />

200 250 300 350 400<br />

0 160<br />

50 100 150<br />

Experimental SNR = 40% of expected SNR<br />

Optimal when pixel size matches speckle size

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