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RESEARCH PRODUCT
Tunable coupled surface acoustic cavities
M. M. De LimaPaulo V. SantosYu. A. KosevichAndrés Cantarerosubject
Physical acousticsSurface (mathematics)Materials sciencePhysics and Astronomy (miscellaneous)business.industrySubstrate (electronics)Enginyeria acústicaCiència dels materialsInterferometryAmplitudeOpticsDispersion (optics)Surface acoustic wave sensorbusinessLine (formation)description
We demonstrate the electric tuning of the acoustic field in acoustic microcavities (MCs) defined by a periodic arrangement of metal stripes within a surface acoustic delay line on LiNbO3 substrate. Interferometric measurements show the enhancement of the acoustic field distribution within a single MC, the presence of a “bonding” and “anti-bonding” modes for two strongly coupled MCs, as well as the positive dispersion of the “mini-bands” formed by five coupled MCs. The frequency and amplitude of the resonances can be controlled by the potential applied to the metal stripes.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2012-06-25 |