Controlling light in scattering media

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Overview • Experimental measurement of the Transmission Matrix (we don’t have transducers!) • Imaging applications • Fundamental insight on the medium
Experimental setup N=256 macropixels/modes CCD x40 AN : 0.75 P x20 Laser 532nm Iterative focusing in a time ∝ P D € L sample ∝ AN : 0.5 L P N (Allard Mosk Group) SLM N=256 macropixels/ modes We have been able to measure the transmission matrix K in 4N steps € E out m = n k mn E in n
Page 1 and 2: Controlling light in scattering med
Page 3 and 4: different focusingdifferent conditi
Page 5: The scattering matrix Our system of
Page 9 and 10: A good basis to start The canonical
Page 11 and 12: How does K obs look like 16x16 pix
Page 13 and 14: 0.6 0.4 How good is focusing (and
Page 15 and 16: Imaging through a random medium: Pr
Page 17 and 18: Imaging through a random medium : R
Page 19 and 20: The singular values K is a NxN comp
Page 21 and 22: Experimental distribution of the si

Controlling light in scattering media

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