Absorption Characteristics of Single Wall Carbon Nanotubes

The different properties Carbon Nanotube (CNT) can be used for various applications. This technologically important material can be loaded into waveguides, by spray coating purified CNT or spin coated CNT – polymer composites, thus allowing the investigation of optical properties such as linear and non linear absorption characteristics, refractive index variation and the characteristics when conjugated with polymer composites. In this paper the absorption characteristics of Carbon Nanotube is determined using SWCNT samples with varying thickness. The absorption coefficient of carbon nanotube is determined to be equal to ~24 x 104 cm-1. The implications of such strong absorption value are discussed