The Complications in Developing Photonics

The difficulty in developing photonics is in considering the quantum effects that kind of play with the system. So we talk about these so-called metamaterials, which are designed materials with sub-vivalence featured structures or like atoms forming a lattice. A single nanoparticle is like an atom compared to an atom which is in vacuum. It doesn't interact with any other surroundings and you have precise energy levels inside it. The security increases if you use the single photon communication. We're talking about limit, limitation fundamental limitations coming from the diffraction limit, which would sit at Lambda by 2.