Lasers :: laser lasers

Since boyhood Einstein wondered more or less light. He would wonder about its speed, and how it works. In fact most of Einsteins work involved light in someways or another. (Guillen) So of course when S.N.Bose sent Einstein a writing on light being a gas consisting of photons, Einstein was very interested. Boses paper was more like a bunch of questions. For example he noticed that photons didnt behave like statistical billiard balls. Billiard balls that atomic number 18 shaken on a table will eventual hang up in some dismission. But photons tended to fall in to one pocket if another photon was ready in that location. (Forward) Einstein and Bose continued to work together on photons and noticed that one photon was indistinguishable from another photon. This let Einstein and Bose to terminate that strange behavior or photons was just statistical probability. (Forward)For example if I have the set of numbers 1,2,3 There are 6 subsets if apiece position is unique1,2 1,3 2,32,1 3,1 3,2but if position doesnt matter thus there are only 3 subsets1,2 2,3 1,3Since 1,2 is the same as 2,1Using this estimation and many other ideas Einstein laid the foundations for the laser by theorizing about the stimulated emission of radiation. His idea was that if you had a large number of atoms respectable of excess energy, and they were ready to forward a photon at some hit-or-miss time in some random direction, if a stray photon passed by, then the atoms are stimulated by its presence, and severally atom may transmit there photon early. This new photon would have the same direction and the same relative frequency as the original photon Repeating this process with more and more photons each time is what gives us a lasers. (Forward)Einstein did not actual skeletal system the first laser. The first laser would not be fixd till 1954 by Townes. He called his invention a M.A.S.E.R. micro-cook Amplification by horny Emission of Radiati on. but skeptics read it as Means of Acquiring turn out for Expensive Research (Talbot) Townes first used Microwave energy to create resonance in ammonia, if the power input was really large, the ammonia would emit energy . Most people dont consider this a laser, since it was using Microwave energy to stimulate the atoms to change energy levels, but the maser did stimulate the look for that lead to the laser.