The most common applictions are LEDs and lasers, the latter being the foundation of optical communications.
The most modern theory of light is the quantum theory.
quantum theory of light
newton corpuscular theory,huygen wave theory,maxwell electromagnetic theory and planck quantum theory
explain planks quantum theory? Planck did not make the whole Quantom thoery. He only made up Quanta. Other scientists helped inprove it over time.
Photo electric emission cannot be explained using wave theroy of light. We need quantum theory.
Quantum Mechanics
when data shows electron energy levels are not related to light wavelengths.
There is unlikely to be a successor to a quantum theory of light, by the definition that the quantum theory of light is that "Light is made up of discernible particles", has very strong evidence to support it, and no alternative explanation has yet been found to explain such effects as the photoelectric effect.If you mean quantum electrodynamics, the section of the standard model of particle physics that explains light, electricity and magnetism, and therefore the standard model of particle interaction, then the only answer is that absolutely nobody knows. In fact, finding a successor to the standard model, which despite being one of the best theories ever developed is full of more holes than the titanic if taken as a theory of everything, is one of the biggest deals in all of science.One possible successor to the theory of quantum electrodynamics is the section of superstring theory that explains electromagnetism, but there are many who don't think string theory will be the answer to physics' problems, and certainly string theorists have yet to find any strong evidence supporting their theories.
Newton's corpuscular theory Huygen's mechanical wave theory Maxwell's electromagnetic wave theory Finally Planck's quantum theory LIght as a single "photon" acts somewhat differently than a wave (of energy).
Schrödinger's equations, I believe
Quantum theory, Quantity, Quanta of light.
light transfers by pieces, and one piece is one quant, one quant has energy of hv0