Lasers :: laser lasers

Since boyhood hotshot wondered or so light. He would wonder about its speed, and how it works. In fact most of geniuss work involved light in several(prenominal)way or another. (Guillen) So of course when S.N.Bose sent Einstein a paper on light being a gas consisting of photons, Einstein was very interested. Boses paper was to a greater extent like a bunch of questions. For caseful he noticed that photons didnt behave like statistical billiard balls. billiard balls that are shaken on a table will eventual(prenominal) fall in some pocket. But photons tended to fall in to 1 pocket if another photon was ready there. (Forward) Einstein and Bose continued to work unneurotic on photons and noticed that one photon was indistinguishable from another photon. This let Einstein and Bose to conclude that strange behavior or photons was just statistical probability. (Forward)For mannequin if I have the set of chips 1,2,3 There are 6 subsets if each position is unique1,2 1, 3 2,32,1 3,1 3,2but if position doesnt matter and so there are only 3 subsets1,2 2,3 1,3Since 1,2 is the analogous as 2,1victimization this idea and many other ideas Einstein laid the foundations for the laser by theorizing about the put forwardd emission of radiation. His idea was that if you had a large number of atoms full of excess push, and they were ready to emit a photon at some random time in some random direction, if a jog photon passed by, then the atoms are stimulated by its presence, and each atom may emit there photon early. This new photon would have the same direction and the same 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 veritable build the first laser. The first laser would not be created trough 1954 by Townes. He called his invention a M.A.S.E.R. Microwave Amplification by Stimulated Emission of Radiation. but skeptics read it as Means of acquiring Support 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 victimization Microwave energy to stimulate the atoms to change energy levels, but the maser did stimulate the research that lead to the laser.