公开(公告)号：US20210381877A1

公开(公告)日：2021-12-09

申请号：US16322645

申请日：2017-08-01

Applicant: Albert Schliesser

Inventor： Albert Schliesser ,  Yeghishe Tsaturyan ,  Eugene Simon Polzik ,  Andreas Barg

IPC: G01G3/16 ,  G01L1/10

Abstract: The present invention relates to a mechanical resonator device. The resonator device comprises a resonator element made of an elastic material under tensile stress and adapted for sustaining at least one oscillation mode; and a clamping structure supporting the resonator element. The clamping structure has a phononic density of states exhibiting a bandgap or quasi-bandgap such that elastic waves of at least one polarisation and/or frequency are not allowed to propagate through the clamping structure. The resonator element and the clamping structure are configured to match with a soft-clamping condition that elastic waves of polarisation and/or frequency corresponding to the at least one oscillation mode of the resonator penetrate evanescently into the clamping structure in a manner such as to minimize bending throughout the entire resonator device. Thereby, bending related loss may be minimized and the Q-factor of the mechanical resonator may be maximized.

公开(公告)号：US11486756B2

公开(公告)日：2022-11-01

申请号：US16322645

申请日：2017-08-01

Applicant: Albert Schliesser

Inventor： Albert Schliesser ,  Yeghishe Tsaturyan ,  Eugene Simon Polzik ,  Andreas Barg

IPC: G01G3/16 ,  G01L1/10

Abstract: A mechanical resonator device. The resonator device includes a resonator element made of an elastic material under tensile stress and adapted for sustaining at least one oscillation mode; and a clamping structure supporting the resonator element. The clamping structure has a phononic density of states exhibiting a bandgap or quasi-bandgap such that elastic waves of at least one polarisation and/or frequency are not allowed to propagate through the clamping structure. The resonator element and the clamping structure are configured to match with a soft-clamping condition that elastic waves of polarisation and/or frequency corresponding to the at least one oscillation mode of the resonator penetrate evanescently into the clamping structure in a manner such as to minimize bending throughout the entire resonator device. Thereby, bending related loss may be minimized and the Q-factor of the mechanical resonator may be maximized.