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Acousto-optical coherence tomography with a digital holographic detection scheme

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Academic year: 2021

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Fig. 1. (Color on-line) Experimental set-up. HWP: half-wave plate, PBS: polarizing beam splitter, AOM1, AOM2: acousto-optic modulators, FI: Faraday isolator, UT: ultrasound transducer, f C : camera framerate, f L : laser frequency
Figure 1 depicts schematically the experimental set- set-up. A single-frequency 300-mW CW Ti:Sapphire laser (Coherent, MBR 110) with a coherence length of 300 m is tuned at 780 nm in order to work in the optical therapeutic window
Fig. 3. Characteristics of the AO profile as functions of the reso- reso-lution: (a) amplitude, (b) contrast, (c) full width at half maximum of the inclusion (FWHM).

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