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The "father of the photon" is often considered to be Albert Einstein. While the concept of light as both a wave and a particle existed in earlier theories, Einstein's work in 1905 on the photoelectric effect provided the theoretical explanation that light can be thought of as being made up of particles, which he called quanta or photons.
This groundbreaking work earned him the Nobel Prize in Physics in 1921. Einstein's ideas helped to solidify the quantum theory of light, which eventually led to the development of quantum mechanics.
This groundbreaking work earned him the Nobel Prize in Physics in 1921. Einstein's ideas helped to solidify the quantum theory of light, which eventually led to the development of quantum mechanics.