Accession Number : ADD011363

Title :   Superlattice Ultrasonic Wave Generator.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Quinn,J J ; Strom,U ; Chang,L L

Report Date : 04 Sep 1984

Pagination or Media Count : 9

Abstract : An ultrasonic wave generator comprising a semiconductor superlattice with a periodic variation in its space charge and a far infrared laser for applying a transient electric field to the superlattice transverse to the direction of its periodic variation. The ultrasonic wave produced has a wavelength of the period of the superlattice which can result in 100 gigahertz ultrasonic waves. Structure is included for guiding these waves into an acoustic system. (Author)

Descriptors :   *Patents, *Ultrasonics, *Semiconductor devices, *Crystal lattices, *Infrared lasers, Acoustic equipment, Semiconductors, Far infrared radiation, Phonons, Space charge, Electric fields, Ambient noise, Transients, Waves, Generators

Subject Categories : Lasers and Masers
      Acoustics
      Crystallography
      Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE