Characterization of energy trapping in a bulk acoustic wave resonator

Kimmo Kokkonen (Corresponding Author), Johanna Meltaus, Tuomas Pensala, Matti Kaivola

    Research output: Contribution to journalArticleScientificpeer-review

    8 Citations (Scopus)

    Abstract

    Acoustic wave fields both within the active electrode area of a solidly mounted 1.8 GHz bulk acoustic wave resonator, and around it in the surrounding region, are measured using a heterodyne laser interferometer. Plate-wave dispersion diagrams for both regions are extracted from the measurement data. The experimental dispersion data reveal the cutoff frequencies of the acoustic vibration modes in the region surrounding the resonator, and, therefore, the energy trapping range of the resonator can readily be determined. The measured dispersion properties of the surrounding region, together with the abruptly diminishing amplitude of the dispersion curves in the resonator, signal the onset of acoustic leakage from the resonator. This information is important for verifying and further developing the simulation tools used for the design of the resonators. Experimental wave field images, dispersion diagrams for both regions, and the threshold for energy leakage are discussed.
    Original languageEnglish
    Article number233507
    JournalApplied Physics Letters
    Volume97
    Issue number23
    DOIs
    Publication statusPublished - 2010
    MoE publication typeA1 Journal article-refereed

    Fingerprint

    resonators
    trapping
    acoustics
    energy
    leakage
    diagrams
    wave dispersion
    sound waves
    vibration mode
    cut-off
    interferometers
    thresholds
    electrodes
    curves
    lasers
    simulation

    Keywords

    • acoustic resonators
    • bulk acoustic wave devices
    • light interferometers

    Cite this

    Kokkonen, Kimmo ; Meltaus, Johanna ; Pensala, Tuomas ; Kaivola, Matti. / Characterization of energy trapping in a bulk acoustic wave resonator. In: Applied Physics Letters. 2010 ; Vol. 97, No. 23.
    @article{d6074c9d54cf4aaf827a443a77911d30,
    title = "Characterization of energy trapping in a bulk acoustic wave resonator",
    abstract = "Acoustic wave fields both within the active electrode area of a solidly mounted 1.8 GHz bulk acoustic wave resonator, and around it in the surrounding region, are measured using a heterodyne laser interferometer. Plate-wave dispersion diagrams for both regions are extracted from the measurement data. The experimental dispersion data reveal the cutoff frequencies of the acoustic vibration modes in the region surrounding the resonator, and, therefore, the energy trapping range of the resonator can readily be determined. The measured dispersion properties of the surrounding region, together with the abruptly diminishing amplitude of the dispersion curves in the resonator, signal the onset of acoustic leakage from the resonator. This information is important for verifying and further developing the simulation tools used for the design of the resonators. Experimental wave field images, dispersion diagrams for both regions, and the threshold for energy leakage are discussed.",
    keywords = "acoustic resonators, bulk acoustic wave devices, light interferometers",
    author = "Kimmo Kokkonen and Johanna Meltaus and Tuomas Pensala and Matti Kaivola",
    year = "2010",
    doi = "10.1063/1.3521263",
    language = "English",
    volume = "97",
    journal = "Applied Physics Letters",
    issn = "0003-6951",
    number = "23",

    }

    Characterization of energy trapping in a bulk acoustic wave resonator. / Kokkonen, Kimmo (Corresponding Author); Meltaus, Johanna; Pensala, Tuomas; Kaivola, Matti.

    In: Applied Physics Letters, Vol. 97, No. 23, 233507, 2010.

    Research output: Contribution to journalArticleScientificpeer-review

    TY - JOUR

    T1 - Characterization of energy trapping in a bulk acoustic wave resonator

    AU - Kokkonen, Kimmo

    AU - Meltaus, Johanna

    AU - Pensala, Tuomas

    AU - Kaivola, Matti

    PY - 2010

    Y1 - 2010

    N2 - Acoustic wave fields both within the active electrode area of a solidly mounted 1.8 GHz bulk acoustic wave resonator, and around it in the surrounding region, are measured using a heterodyne laser interferometer. Plate-wave dispersion diagrams for both regions are extracted from the measurement data. The experimental dispersion data reveal the cutoff frequencies of the acoustic vibration modes in the region surrounding the resonator, and, therefore, the energy trapping range of the resonator can readily be determined. The measured dispersion properties of the surrounding region, together with the abruptly diminishing amplitude of the dispersion curves in the resonator, signal the onset of acoustic leakage from the resonator. This information is important for verifying and further developing the simulation tools used for the design of the resonators. Experimental wave field images, dispersion diagrams for both regions, and the threshold for energy leakage are discussed.

    AB - Acoustic wave fields both within the active electrode area of a solidly mounted 1.8 GHz bulk acoustic wave resonator, and around it in the surrounding region, are measured using a heterodyne laser interferometer. Plate-wave dispersion diagrams for both regions are extracted from the measurement data. The experimental dispersion data reveal the cutoff frequencies of the acoustic vibration modes in the region surrounding the resonator, and, therefore, the energy trapping range of the resonator can readily be determined. The measured dispersion properties of the surrounding region, together with the abruptly diminishing amplitude of the dispersion curves in the resonator, signal the onset of acoustic leakage from the resonator. This information is important for verifying and further developing the simulation tools used for the design of the resonators. Experimental wave field images, dispersion diagrams for both regions, and the threshold for energy leakage are discussed.

    KW - acoustic resonators

    KW - bulk acoustic wave devices

    KW - light interferometers

    U2 - 10.1063/1.3521263

    DO - 10.1063/1.3521263

    M3 - Article

    VL - 97

    JO - Applied Physics Letters

    JF - Applied Physics Letters

    SN - 0003-6951

    IS - 23

    M1 - 233507

    ER -