Optics and Photonics Society of Iran

Hard or soft biological tissue, including human tissue (bone, kidney, intestine, etc.) due to amorphous structure, low loss and high refractive index, can act as dispersive in random laser. Regarding to the dependence of the random laser emission spectrum to the scatterer medium, biological tissues impregnated with dye laser solution containing important information relating to the structure of biological tissue. Cancer tissue cells proliferate and are increasingly irregular and amorphous arrangement and more porous than healthy tissue cells, such that the random laser emission of healthy tissue and cancer are different. In this paper, random laser emission comes from thyroid cancer and normal tissues impregnated with dye solution are studied.