Laser play

Lasers

By N.S.
  • Einstein develops an idea for stimulated light

    Einstein develops an idea for stimulated light
    Using quantum physics, Einstein, sometime in the year of 1916, predicted that rays could stimluate other atoms causing them to emit light of the same wavelength. However, no one knew how to practically do this, and many people just thought of it as a theoretical curiousity.
  • Charles Townes Conceives the Idea for a Maser

    Charles Townes Conceives the Idea for a Maser
    Charles Hard Townes of Columbia University had come up with the idea of what would become the maser, where under the right conditions atoms would emit radiation by themselves
  • Maser Creation

    Maser Creation
    In 1954, Charles Townes, along with James Gordon and Herbert Zeiger, had finished building the first ammonia Maser. It had used and matched Einstein's predictions, by being able to produce strong, controlled rays of microwaves. The picture shows their second maser.
  • Laser Idea

    Laser Idea
    Charles Townes discusses how it's possible that the maser could operate in the visible light spectrum. Gordon Hughes develops the idea of using a flash tube instead of a continuous supply of light to excite the atoms
  • First Laser built

    First Laser built
    Theodore Maiman, using a flash tube, a ruby, and silver-coated ends, constructs the first laser. It emitted red light.
  • Period: to

    Major Laser Inventions

    Many lasers, starting from the first ruby laser, through the dye laser are built and conceived during this time.
  • First continuous laser built

    First continuous laser built
    Ali Javan, Donald Herriott, and William Bennett Jr. at Bell labs created the first laser with a continous stream of light using helium and neon atoms as the medium (the atoms to be excited)
  • Barcode Scanners

    Barcode Scanners
    Using lasers for barcode scanners to work, the first item got scanned (Wrigley's gum pack) using one.
  • Fiber Optics implementation

    Fiber Optics implementation
    First fiber optic cable is installed under Chicago. Fiber optics is a more compact and faster method than copper wires, and is also faster. It was 8 years in the making.
  • Compact Disk

    Compact Disk
    The first compact disk (CD) is manuafactured, and sold commercially with a Billy Joel album. Compact disk readers use a laser to read bumps on the CD for the bits.
  • Intel Lightpeak

    Intel Lightpeak
    Intel announced LightPeak that use optical fibers to transmit data at a rate of 10 billion bits per second (1.16gb).