Introduction Nano-optics, also commonly known as, “nanophotonics is the study of the behavior of light on the nanometer scale” (Chang and Yang 360). It involves the study of ultraviolet, visible, and near IR light, with a wavelength of approximately 300 to 1200 nanometers. Nanophotonics in principle involves two main areas of interest to scientists; the first part is interested in studying of original properties of light at the smallest nanometric range. Secondly, thematic areas look at the use of these properties in the development of apparatus with very high resolution and technologically advanced that can effectively be used to carry out the engineering applications. This technology is highly employed in optical engineering. Optical engineering mainly deals with optics. Optics looks at the interaction of light with substances or particles, at a deeper nanowavelength scale. Today, many technologies apply the nanophotonics mechanism in their applications and operations. The Nanophotonics mechanism is used in photo-assisted scanning, microscopy, near field scanning optical microscopy (NOSM), tunneling, and surface plasmonics optics. Whereas microscopy uses the diffractive principle of light elements to focus light for the purpose of increasing subject resolution, Nanophotonics employs the option of quantum dots for the transmission of resolution of the objects. Because of the limit of diffraction coined in the Rayleigh Criterion, light propagation may only be confined to a maximum level of hundred nanometers (Chang and Yang 360). Nanophotonics is considered to be working with varied mechanisms, which serve different purposes. The components work in such a way that the input for another system is determined by the outputs of another system. The key components of the Nanophotonics system are the wavelength guides, the photodetectors, and the saturable absorbers. The couplers, the finer ones that guide the wavelength, and the amplifiers are other commonly incorporated parts of the system. The solar cells, the photodetectors, and lasers also play a role in the system (Chang and Yang 357). The Nanophotonics components do work collectively. The fiber and the couplers are believe in charge of the conveyance of the light wave to the system optical switches. The amplifiers are believed to play a role of converting and controlling the system; whereas the detectors help in detecting the images and direct the laser beams. Quantum Dots These are also referred to nanocrystals. They are the kind of a special group of materials called semiconductors. Semiconductors are crystals composed of elements from the groups of II-VI, III-V, or IV-VI in the periodic table. Today, semiconductors are the foundation stone of the modern electronics industry and are majorly used to make the possible functioning in applications such as the personal computer (PC) and the light emitting diode (LED). Quantum dots are examples of semiconductor due to the fact that they are very small, falling in the range of 2-10 nanometres and approximately containing 10-50 atoms in diameter (Chang and Yang 361). Applications Nanophotonics has been employed in the structuring of metamaterials that are used today, and in the electronic and analytical industry. In addition to this, the evolution and de