Sagadevan Suresh

Growth and Characterisation of Organic and Semiorganic Nlo Crystals Sagadevan Suresh

Nonlinear optical (NLO) crystals are the key materials for the development of laser science and technology because only these kinds of materials have functions to change frequency of laser beam and modulate it in amplitude and phase. It may be said that lasers could not be used so widely in modern science and technology as they have been today, without NLO crystals. Development of NLO crystals with better linear optical (LO) and NLO properties, wider spectral transmission, and phase-matching range in particular is obviously essential for further widening the application field of lasers, particularly in the deep-UV, far IR, and even THz spectral regions. This book presents fundamental aspects of growth and characterization of some NLO materials like Trisglycine Zinc Chloride (TGZC), Glycine Zinc Chloride (GZC), L-Tartaric Acid (LTA) and L-Histidine Nitrate (LHN) showing SHG. The solution grown crystals were studied using XRD, FTIR, UV, Dielectric, Hardness, Thermal, Electrical and photoconductivity to confirm the characteristics essential for the NLO activity of the materials