Education
The history of the prediction and discovery of the photon rank among the most fascinating chapters of twentieth century science.
The photon is known as the quantum of electromagnetic radiation. In physics, a quantum is a basic indivisible unit or state that may be present or absent but never stronger or weaker.
In 1905, Albert Einstein published a paper describing his discovery of the photoelectric effect where a photon acts like a particle.
But before that in 1900, the Russian physicist Peter Lebedew experimentally measure photon radiation measure.
In 1901 new formula by Plank was established for radiation of a black body and introduction of what was later called the quantum of action.
In 1902 Lenard discovered that energy of electrons in photo-effect does not depend on the intensity of light but depends on the wavelength of the latter.
Einstein proposed that for some purposes light can be regarded as made up of photon particles. He published a paper describing his discovery of the photoelectric effect where a photon acts like a particle, thereby supporting and augmenting Planck’s quantization discovery.
In 1909 and 1916, Einstein showed that, if Planck's law of black-body radiation is accepted, the energy quanta must also carry momentum , making them full-fledged particles. Einstein incorporated photon momentum into quantum mechanics.
The term ‘photon’ for particles of light was coined by Lewis in 1926 in an article ‘The Conservation of Photons’. He considered photons to be ‘atoms’ of light.
The 1921 physics Nobel prize was awarded to Einstein in most famous for his theory of relativity, but it is his discovery of photons that is mentioned by the Swedish Academy.
This photon momentum was observed experimentally by Arthur Holly Compton, for which he received the Nobel Prize in 1927.
He verified experimentally by Milikan’s studies of the photoelectric effect in 1914 – 16.
Discovery History of Photon
- How Quantum Randomness Saves Relativity
In physics, Albert Einstein is famous for two things: developing the theory of relativity, and hating quantum mechanics. Relativity is a colossal achievement, with the special theory of 1905 putting classical physics on a firmer philosophical footing,...
- Quantum Theory
Quantum theory is the theoretical basisof modern physics that explains the nature and behavior of matter and energy on the atomic and sub atomic level. The nature and behavior of matter and energy at that level is sometimes referred to as quantum...
- Quantum Mechanics In History
Quantum Mechanics is a fundamental branch of physics with wide applications. The foundations of quantum mechanics were established during the first half of the twentieth century by Werner Heisenberg, Max Planck, Louis de Broglie, Albert Einstein, Niels...
- Brief Biography Of Albert Einstein (1879-1955)
Albert Einstein is one of the greatest scientists of all times. He questioned widely accepted scientific truths and fine-tuned the scientific theories of Sir Isaac Newton. Albert Einstein was born on March 14, 1879 in Ulm, Wurttemberg, Germany. He studied...
- History Of The Black Hole Theory
A black hole in space has gravitational force so strong that nothing can escape from it, not even light. Hence no one can see a black hole astronomers are convinced they exist. John Michell, a British geologist and astronomer, designed the experiment...
Education
Discovery History of Photon
The history of the prediction and discovery of the photon rank among the most fascinating chapters of twentieth century science.
The photon is known as the quantum of electromagnetic radiation. In physics, a quantum is a basic indivisible unit or state that may be present or absent but never stronger or weaker.
In 1905, Albert Einstein published a paper describing his discovery of the photoelectric effect where a photon acts like a particle.
But before that in 1900, the Russian physicist Peter Lebedew experimentally measure photon radiation measure.
In 1901 new formula by Plank was established for radiation of a black body and introduction of what was later called the quantum of action.
In 1902 Lenard discovered that energy of electrons in photo-effect does not depend on the intensity of light but depends on the wavelength of the latter.
Einstein proposed that for some purposes light can be regarded as made up of photon particles. He published a paper describing his discovery of the photoelectric effect where a photon acts like a particle, thereby supporting and augmenting Planck’s quantization discovery.
In 1909 and 1916, Einstein showed that, if Planck's law of black-body radiation is accepted, the energy quanta must also carry momentum , making them full-fledged particles. Einstein incorporated photon momentum into quantum mechanics.
The term ‘photon’ for particles of light was coined by Lewis in 1926 in an article ‘The Conservation of Photons’. He considered photons to be ‘atoms’ of light.
The 1921 physics Nobel prize was awarded to Einstein in most famous for his theory of relativity, but it is his discovery of photons that is mentioned by the Swedish Academy.
This photon momentum was observed experimentally by Arthur Holly Compton, for which he received the Nobel Prize in 1927.
He verified experimentally by Milikan’s studies of the photoelectric effect in 1914 – 16.
Discovery History of Photon
- How Quantum Randomness Saves Relativity
In physics, Albert Einstein is famous for two things: developing the theory of relativity, and hating quantum mechanics. Relativity is a colossal achievement, with the special theory of 1905 putting classical physics on a firmer philosophical footing,...
- Quantum Theory
Quantum theory is the theoretical basisof modern physics that explains the nature and behavior of matter and energy on the atomic and sub atomic level. The nature and behavior of matter and energy at that level is sometimes referred to as quantum...
- Quantum Mechanics In History
Quantum Mechanics is a fundamental branch of physics with wide applications. The foundations of quantum mechanics were established during the first half of the twentieth century by Werner Heisenberg, Max Planck, Louis de Broglie, Albert Einstein, Niels...
- Brief Biography Of Albert Einstein (1879-1955)
Albert Einstein is one of the greatest scientists of all times. He questioned widely accepted scientific truths and fine-tuned the scientific theories of Sir Isaac Newton. Albert Einstein was born on March 14, 1879 in Ulm, Wurttemberg, Germany. He studied...
- History Of The Black Hole Theory
A black hole in space has gravitational force so strong that nothing can escape from it, not even light. Hence no one can see a black hole astronomers are convinced they exist. John Michell, a British geologist and astronomer, designed the experiment...