Update: DiCaprio won Best Actor at the 88th Academy Awards. He now has one Oscar under his belt. Earlier: Although Oscar nominations haven't been announced, it is highly anticipated that DiCaprio will be nominated by the Academy for his role in the Golden Globe winning motion picture, The Revenant. This wouldn't be the first time DiCaprio was nominated for an Oscar. In 1994, DiCaprio was nominated in the Best Supporting Actor category for What's Eating Gilbert Grape, and for Best Actor in 2005, 2007, and 2014 for The Aviator, Blood Diamond, and The Wolf of Wall Street, respectively.
The first laser was built in 1960 by Theodore H. Maiman at Hughes Laboratories, based on theoretical work by Charles Hard Townes and Arthur Leonard Schawlow. A laser differs from other sources of light in that it emits light coherently.
Such light is called coherent. Lasers produce coherent light through a process called stimulated emission. The laser contains a chamber in which atoms of a medium such as a synthetic ruby rod or a gas are excited to a high energy level. device that emits a very narrow and intense beam of light or other radiation. The light is generated by exciting the atoms of a medium, such as a crystal, gas, or liquid. The color of laser light depends on the level to which the atoms of the medium become excited.