Nanoelectronics refers to the employment of technology in electronic elements. The term covers a various set of devices and materials, with the common characteristic that they're thus tiny that inter-atomic interactions and quantum mechanical properties have to be compelled to be studied extensively.
Nanophotonics or nano-optics may be a a part of technology that investigates the behavior lightweight of sunshine on nanometre scales moreover as interactions of nanometer-sized objects with light.