Sound amplification by stimulated emission of radiation the axes of the mirrors, it is possible for photons to repeat multiple reflections and force more and more photons to follow them producing an avalanche effect. The number of photons of this coherent laser beam increases and competes the number of photons perished due to losses. The basic necessary condition for the generation of a laser radiation is the population inversion, which can be achieved either by exciting atoms and inducing percussion or by external radiation absorption. A SASER device mimics this procedure using a source-pump to induce a sound beam of phonons. This sound beam propagates not in
Primetime Emmy Award for Outstanding Art Direction for a Miniseries or Movie Primetime Emmy Award for Outstanding Art Direction for a Miniseries or Movie The Primetime Emmy Award for Outstanding Art Direction for a Miniseries or Movie is a retired award that was handed out annually at the Creative Arts Emmy Awards. In 2014, the category was restructured into Outstanding Production Design for a Narrative Contemporary or Fantasy Program (One Hour or More) and Outstanding Production Design for a Narrative Period Program (One Hour or More). Outstanding Achievement in Art Direction and Scenic Design Outstanding Art Direction for a Dramatic Program or Series Outstanding Art Direction for a Dramatic Special Outstanding Art