Sound amplification by stimulated emission of radiation of a coherent amplification of THz sound. The THz stimulated phonon induced transitions between the electron superlattice states lead to this coherent amplification while processing a population inversion. An essential step towards coherent generation ("sasing") of THz sound and other active hypersound devices has been provided by this achievement of THz sound amplification. Generally, in a device where the threshold for "sasing" is achieved, the technique described by this proposed scheme could be used to measure the coherence time of the emitted hypersound. Sound amplification by stimulated emission of radiation Sound amplification by stimulated emission of radiation (SASER) refers to
A Moving Sound of the human condition." A Moving Sound has attracted international attention for opening doors to the under explored territory of Far Eastern music. The group is intensely passionate about how it presents the use of traditional instruments in its contemporary sound. Their approach is to be holistic – combining art, spirituality, social awareness, and a universal love of humanity play key roles in the creative process. According to Tom Pryor, music supervisor for National Geographic, "A Moving Sound is one of the most original outfits working in the world music arena today, an inspired marriage of Taiwanese traditional sounds and