-
Invention of the Maser
Charles Townes and Arthur Schawlow invented the maser ( m icrowave a mplification by s timulated e mission of r adiation), using ammonia gas and microwave radiation. The maser was invented before the laser. -
Lasers Thought of
Charles Townes and Arthur Schawlow theorized and published papers about a visible laser, an invention that would use infrared and/or visible spectrum light, however, they did not proceed with any research at the time. -
Maser gets a Patent
Charles Townes and Arthur Schawlow were granted a patent for the maser. The maser was used to amplify radio signals and as an ultrasensitive detector for space research. -
Ruby Laser Invented
Theodore Maiman invented the ruby laser considered to be the first successful optical or light laser. -
Invention of the Gas Laser
The first gas laser (helium neon) was invented by Ali Javan. The gas laser was the first continuous-light laser and the first to operate "on the principle of converting electrical energy to a laser light output." It has been used in many practical applications. -
Invention of the Semiconductor Injection Laser
Robert Hall created a revolutionary type of laser that is still used in many of the electronic appliances and communications systems that we use every day. -
Invention of the Carbon Dioxide Laser
The carbon dioxide laser was invented by Kumar Patel.
