Electric Dipole Characteristics of Mineral Tourmaline Superfine Powders and its Properties of Far Infrared Emission
According to the hypothesis that the tourmaline particle is composed of crystal electric dipoles, the far infrared emission and its vibration frequency of the natural black tourmaline superfine powders were researched. The behavior of the electric dipole in the ground and excitation states was calculated. It was found that there is a relationship between infrared absorption spectra and the microscopic D-value of electric dipole moment. The high far infrared emissivity of tourmaline was ascribed to the coherent light created by stimulated emission between different excitation states of electric dipole.
Jinsheng Liang and Lijuan Wang
L. J. Han et al., "Electric Dipole Characteristics of Mineral Tourmaline Superfine Powders and its Properties of Far Infrared Emission", Advanced Materials Research, Vol. 178, pp. 129-132, 2011