The field of optics that deals with non – linear behavior of optical materials is known as non- linear optics. The material for which the optical properties depends on the intensity of light and behave non – linearly is called non linear optical (NLO) Materials. The physical properties of optical material depend on intensity of
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Though nano-particles are very small, they are the important materials to built the future world. They have applications almost in all fields as follows Nanomaterials in Energy Production Generating steam from sunlight: The sunlight, concentrated on nanoparticles intended to use sunlight to generate steam for use in running power plants. Producing high efficiency light bulbs:
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There are two general approaches to the synthesis of nanomaterials, they are (a) The top-down approach (b) The bottom-up approach (a) The top-down approach It is a approach in which smaller objects are made by carving or fabricating larger or bulk materials. It is like stone made into pieces from mountains (b) The bottom-up approach
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