How much do you know the history of laser technology?


At the beginning of the 20th century, Albert Einstein laid the foundation stone for laser 20000mw technology. This technology has continued to develop since the first laser was built at the Hughes Institute in 1960. The timeline below illustrates the evolution of laser technology.

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At the beginning of the 20th century, Albert Einstein laid the foundation stone for laser 20000mw technology. This technology has continued to develop since the first laser was built at the Hughes Institute in 1960. The timeline below illustrates the evolution of laser technology.

1917: Albert Einstein laid the foundation for laser technology by assuming the phenomenon of "stimulated emission", which is the basic premise for all lasers to function.
1939: Valentin Fabrikant proposed the theory of using stimulated emission to amplify radiation.
1950: Charles Townes, Nikolay Basov and Alexander Prokhorov developed the quantum theory of stimulated emission and proved the stimulated emission of microwaves. They later won the Nobel Prize in Physics for this pioneering work.
1959: Columbia University graduate student Gordon Gould hypothesized that stimulated emission could be used to amplify light. He described a kind of optical resonator that can produce narrow beam coherent light, and called it LASER, which is the abbreviation of "stimulated emission light amplification".
1960: Theodore Maiman developed the first working laser pointer 5000mw prototype at the Hughes Institute in Malibu, California. This laser uses synthetic ruby ​​as the active medium and emits a deep red beam with a wavelength of 694.3 nanometers. Initially, ruby ​​lasers were used in military rangefinders, and because of their high performance, they are still used for commercial purposes to drill holes in diamonds.
1963: The carbon dioxide (CO 2) laser was developed by Kumar Patel of ATT Bell Labs. CO 2 lasers are much cheaper and more efficient than ruby ​​lasers. These characteristics have made CO2 3w laser pointer the most popular industrial lasers for more than 50 years.

The principle of Burning Laser Pointers technology The full name of laser in English is Light Amplification by Stimulated Emission of Radiation (LASER). Introduced in 1960, it is a light that is enhanced by stimulating radiation. The principle is to use the red, green, and blue lasers as the light source, and display by adjusting the intensity ratio, total intensity, and intensity spatial and temporal distribution of the three-color lasers.

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