M.L. Dakss, R.L. Mieher
Physical Review Letters
Up to 0.25 mW of acoustic surface wave power at 225 MHz have been generated on LiNbO3 with a Gunn oscillator via periodic piezoelectric coupling of the Gunn domain electric fields across an air gap. The coupling periodicity is produced by a metal or dielectric grating on the LiNbO3 surface. The ratio of generated surface wave power Pac to the electrical pulse power is up to 2.5×10-6 for the metal grating and 10 -7 for the dielectric grating. The observed dependence of P ac on the number of grating fingers is explained by the degree of phase matching between Gunn domains and acoustic surface waves. © 1971 The American Institute of Physics.
M.L. Dakss, R.L. Mieher
Physical Review Letters
E.G. Lean
Journal of the Acoustical Society of America
M.L. Dakss, L. Kuhn, et al.
Applied Physics Letters
E.G. Lean
ISSCC 1972