Terahertz Complex Refractive Index and Guiding of White Staghorn Coral

Corals are the remains of animals that grow on warm beaches. They have been used as decorative jewels because of their variety of colors, and as medicinal materials for treating cancers, AIDS, and other therapeutic uses because of their chemical elements. Corals are mainly composed of calcium carbonate (CaCO3) and have many air pores, tens to hundreds of micrometers in size. The refractive indices and absorption coefficients of dried sliced...