Nanoscale modeling of LIB method using quantum-photonic perspective and simulation of multi-photon ionization (MPI)

The purpose of this paper is to obtain the threshold intensity of laser radiation for burning human tissue and also to simulate and extract graphs related to the phenomenon of multi-photon ionization caused by laser light irradiation on water in living tissue, which has many applications including medical science. Since most human tissue is made up of water, we consider water to be the target substance. To simulate the effects of laser light hitting the surface of the body, we use the "quantum photonic" theory. During simulation, photons pass through different layers. For each layer, we examine in detail the possibility of photon absorption, molecular ionization and molecular decomposition for each layer.We repeat the steps mentioned in the article for 10 layers and in each layer the percentage of ionized atoms is determined.Then, according to the obtained results, we will conclude about the intensity of radiation and the percentage of ionization.