**9.2 Specific absorption rate calculations at 1064 nm single nano-antenna**

**Figure 6a**–**d** shows the distribution of the field in the tissue after subjecting to single NA at 1064 nm for various distances (100, 200, 300 and 400) nm. The point SAR inside the proposed tissue could be calculated. The maximum values of SAR are (2.28 × 1011, 1.17 × 1011, 8.49 × 1010, and 8.11 × 1010) W/kg for distances (100, 200, 300, and 400) nm respectively. It is noticed that the point SAR value is not varied clearly at this wavelength.

**Figure 7** shows the behavior of SAR as a function of different distances at the wavelength of 1064 for single NAs. Similar behavior is detected for both wavelengths but it is noticed that sharp reduction from single to an array structures.

It is obvious that the distribution of the far-field in the tumor is varied for two resonance wavelengths (532 and1064) nm where the field is appeared out the tumor in the case of 1064 nm. This distribution may affect on the healthy surrounding tissues which are not preferred in this type of application although the strength of the field is suitable. In addition, it is well observed that the SAR increases with the closest distance.
