How does a photonic crystal work?
Photonic crystals are periodic dielectric structures that are designed to form the energy band structure for photons, which either allows or forbids the propagation of electromagnetic waves of certain frequency ranges, making them ideal for light-harvesting applications (Maka et al., 2003).
What are natural photonic crystals?
Natural photonic crystals should be defined here as a medium with a refractive index that varies in space periodically. The purpose of this periodic structure is to control the scattering of an incident illumination and, for this purpose, there is no need for producing anything else than “stop bands” or “partial gaps”.
What is photonic crystal cavity?
Photonic crystal cavities increase temporal confinement of light in a material, as represented by their high quality factor, while plasmonic structures increase spatial confinement, as represented by their low mode volume.
What are photonic materials?
Synthesis, characterisation and theoretical understanding of materials and nanostructures that emit or interact with electromagnetic radiation or quasiparticles with similar characteristics (e.g. plasmons or phonons).
What is photonic material?
Photonics commonly uses semiconductor-based light sources, such as light-emitting diodes (LEDs), superluminescent diodes, and lasers. Examples for material systems used are gallium arsenide (GaAs) and aluminium gallium arsenide (AlGaAs) or other compound semiconductors.
What is photonic crystal resonator?
Photonic Crystals are periodic nanostructures that are designed to affect the motion of photons in the same way as the periodic potential in a semiconductor crystal affects the electron motion by defining allowed and forbidden electronic energy bands [1, 2].
What is photonic light?
Photonics is the physical science of light waves. It deals with the science behind the generation, detection and manipulation of light. Light has a dual nature known as the wave-particle duality. That is to say that light has characteristics of both a continuous electromagnetic wave and a particle (photon).
What is a photonic crystal waveguide?
Photonic crystal waveguides (PCW) are one of the promising examples of PhCs applications at micron and submicron length-scales. PCW can be formed by removing one or several lines of scatterers from the PhC lattice. Light confinement is obtained due to a complete photonic bandgap (PBG).