Fig. 2: Experimental setup for the wide-field reflection matrix optical coherence tomography to enhance the delivery of light energy deep in the sample. | Light: Science & Applications

Fig. 2: Experimental setup for the wide-field reflection matrix optical coherence tomography to enhance the delivery of light energy deep in the sample.

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

Fig. 2

The weak interference signal from mixing the reference arm (green arrow) and sample arm (purple arrow) is first improved using optical heterodyne detection and then recorded by the lock-in camera. M mirror, L lens, P pinhole, LP linear polarizer, HWP half-wave plate, BS beam splitter, PBS polarization beam splitter, AOM acousto-optic modulator, MO microscopy objective, SLM spatial light modulator, CG compensation glass

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