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The invention of high intense laser has opened many innovative ways to explore the nature of matter and its interaction with optical radiation. In recent years much attention has been devoted to optical materials with high second order nonlinearities owing to their potential uses in numerous modern research fields such as Non linear optics (NLO),Electro optic modulation (EOM), high speed telecommunications and terahertz (THz) wave generation and detection, etc. The growing demand for new NLO materials is mainly driven by the materials chemistry, in view of the fact that it sturdily facilitate to identify the materials with sufficient thermal and photochemical stabilities, to provide cost effective and easier ways of materials fabrication, to afford possible ways of molecular arrangement with large structural diversity to enabling the electron flow. Moreover, high quality NLO crystals with the ability to grow to the required dimensions in the laboratory are much needed to realize their applications in the abovementioned areas.
About the author
Dr. G. Shanmugam is an Associate Professor/Physics, SSM Institute of Engg.& Tech, India. He has more than 5 years of teaching experience. He has published 8 articles in international journals and filed a national patent. His field of research is mainly focused on developing crystals for Non linear optical,semiconducting and Terahertz technology.
