  Moving nanoparticles/atoms to study the nearfield interaction between them is
one of the many approaches to explore the optical and electrical properties of
these assemblies. Traditional approach included the self assembly by spinning
or drying nanoparticles in aqua on the substrate is well practiced. Lithography
technique is another popular approach to deposit limited nano/micro patterns on
substrates. Later optical and mechanical manipulations were used to have more
control over moving individual elements of nano and microstructures and even
atoms. Optical tweezers, optical trapping and AFM manipulation are examples of
these precise approaches.
