Figure 1.

Experimental setup of depth-temperature dependency in photoacoustic imaging. The imaging target (black covered resistance heating wire) is placed inside the chicken breast tissue at various distances (10 mm, 20 mm and 30 mm). Photoacoustic images are obtained at temperatures between 5 °C and 35 °C with 5 °C increments. The imaging target’s temperature is controlled and kept constant at 37 °C during the experiment.