Laser-Induced Fluorescence Spectra of Some High-Sulphur Assam Coals, India

Abstract

Coal is a carbonaceous material of sedimentary origin, whichoccurs as an intimate mixture of complex organic mass andinorganic matter. The product of partial decomposition of livingmaterials laid down in sediments on death makes coal verycomplex. The use of laser radiation as an excitation source hasa major impact on the study of the complex material, such ascoal.