In the abstract we did not mention that HPDLs is acronym of “high-power diode lasers”.

We also stated in the text (see Abstract and Sections 1 and 3 of [1]) that we filled three 3-mm diameter tubes done in the phantoms at different depths (0.9 cm, 1.8 cm, and 2.7 cm) with gold nanorods, but during the measurement session we changed the phantoms. For the measurements reported in the paper we actually used three holes with different diameters (i.e. 1 mm, 2 mm, and 4 mm) to host the gold nanorods. The hole with the largest diameter (4 mm) was located in proximity of the ultrasonic transducer, while the hole with the shortest diameter (1 mm) was located near the source. For this reason, the amplitude of the first optoacoustic signal, coming from the 4-mm hole, was higher than the other optoacoustic signals coming from the smaller holes.

On page 1432 we wrote for mistake “KHz”, but the correct form is “kHz”.

In the caption of Fig. 1 we wrote for mistake “~ 900 nm (in red)” but is should be “~900 nm (in green).”

Figure 6 should be replaced with the following:

 

Fig. 6 Alignment between the light output, the phantom, and the piezoelectric transducer.

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In according to the new changes, Table 5 and 7 should be replaced with the following tables, respectively:

Table 5. Geometrical characteristics of the phantoms used in the measurements.

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Table 7. Optoacoustic signals from gold nanorods in each tube. The tubes are labeled with letters A, B, and C.

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The caption of Fig. 7 should be replaced with the following:

“OA signals from gold nanorods inclusions of 4-mm, 2-mm, and 1-mm diameter, respectively, hosted in the phantoms. The signals are labeled with the letters A, B, C for each case: a) NP1 at 870 nm, b) NP2 at 905 nm.”