Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent
1982-10-19
1984-09-04
Miller, J. D.
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
333141, 357 4, H01L 2714
Patent
active
044699778
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.
REFERENCES:
patent: 2716708 (1955-08-01), Bradfield
patent: 3497727 (1970-02-01), De Klerk et al.
patent: 3515911 (1970-06-01), Byram et al.
patent: 3543058 (1970-11-01), Klemens
patent: 3626257 (1971-12-01), Esaki et al.
patent: 3626328 (1971-12-01), Esaki
patent: 3710283 (1973-01-01), Alphonse
patent: 3929527 (1975-12-01), Chang et al.
patent: 4205329 (1980-05-01), Dingle et al.
patent: 4205331 (1980-05-01), Esaki et al.
patent: 4348686 (1982-09-01), Esaki et al.
Physics Letters, vol. 25A, No. 7, dtd Oct. 9, 1967, entitled "Electromagnc Generation of Acoustic Waves and the Surface Impedance of Metals", pp. 522-523, by J. J. Quinn.
Chang Leroy L.
Quinn John J.
Strom Ulrich
Beers Robert F.
Ellis William T.
Guenzer Charles S.
Miller J. D.
Rebsch D. L.
LandOfFree
Superlattice ultrasonic wave generator does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Superlattice ultrasonic wave generator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Superlattice ultrasonic wave generator will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1894269