Elastic strain engineering for ultralow mechanical dissipation (Conference Presentation)

The pursuit of resonators with ultra-high coherence has led to intense study of “dissipation dilution”, where the stiffness of a material is effectively increased without added loss. Interestingly, the paradigm has to date relied on weak strain produced during material synthesis—the use of geometric strain engineering techniques, capable of producing local stresses near the material yield strength, remains largely unexplored. We show that...