The history of spectroscopy began with Isaac Newton 's optics experiments (1666–1672). Newton applied the word "spectrum" to describe the rainbow of colors that combine to form white light and that are revealed when the white light is passed through a prism. During the early 1800s, Joseph von Fraunhofer made experimental advances with dispersive spectrometers that enabled spectroscopy to become a more precise and quantitative scientific technique. Since then, spectroscopy has played and continues to play a significant role in chemistry, physics and astronomy.
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Raghvendra Kumar Mishra is currently working as Senior Research Fellow at the International and Interuniversity Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University, India. He has received India’s most prestigious Visvesvaraya Research Fellowship, and he is currently serving as Visvesvaraya Fellow. He has widely studied the processing of blends, in-situ generation micro and nano fibrillar composites, electromagnetic shielding effect of nanocomposites, decorating and alignment of carbon nanotubes and thermal, dynamic mechanical and structural relationship in polymer blends and nanocomposites .He has bagged several awards from different organizations and technology events. He is serving as reviewer in many international journals . Environmental Chemistry Letters (Springer) etc. He has work as well research experience in Mechanical engineering, Materials science and Technology, and Nanoscience and Nanotechnology. His area of research is multidisciplinary which include Thermodynamics, Heat transfer, Refrigeration and Air-conditioning, Fluid mechanics, Machine design, Solid of Mechanics, Theory of Machine, Power plant engineering, Metal and Ceramic processing, polymers which include Polymer Recycling, Polymer blends, Fibre filled polymer composites, Particulate filled polymer composites and their morphological characterization, Ageing and degradation, Nanomaterials . metallic , metallic oxide, Carbon nanotubes, Graphene, Conducting polymer blends, composites and nanocomposites, Biodegradable polymer blends and composites, Expertise in sophisticated characterization techniques such as Dynamic mechanical analyzer, Differential scanning calorimetry, Thermogravimetric analysis, Spectroscopy, Vector network analyzer, scanning electron Microcopy, Atomic Force Microscopy (AFM), etc.