Infrared radiation is basically a type of electromagnetic radiation which involves waves. This book provides a set of scientific study works which talk about the area of infrared radiation. This book presents elaborated knowledge about recent scientific studies and engineering advances in this field. The content has been thoroughly analyzed and offers considerable amount of information to the readers interested in this domain. This book will be useful to the developers of infrared methods, technicians using infrared tools and researchers who have interest in infrared radiation and its interaction with medium. Furthermore, this book will be beneficial to both undergraduate and postgraduate students interested in studying about this technique and also to multifunctional workers of this field.