Optics and Photonics Society of Iran

Using plasmonic nanoparticles as localized heat sources is an efficient and non-invasive method for destroying unwanted tissue and tumors. In this paper, we have considered a uniform distribution of the nanoparticles with various morphologies inside the tumor that is located at the subcutaneous layer of the skin. The temperature increases of the tumor area under illumination of the light have been calculated. Plasmonic resonance frequency shifting and also temperature increase of the nanoparticles distribution have been studied by varying the morphology of the nanoparticles. The obtained results show that by varying the morphology of the nanoparticles, it's possible to induce a sufficient temperature increase for destroying unwanted tissues and tumors with the light wavelengths at the biological window. The results of this paper could be helpful in the field of photo-thermal therapy by using metallic nanoparticles