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We study methods to improve the Q of a variety of highly-stressed resonators for cavity optomechanics. We realize ultrahigh-Q metal/Si3N4 membranes and crystalline membranes, and have begun to control external dissipation via modified support structures.
JILA, University of Colorado and National Institute of Standards and Technology, and Department of Physics, University of Colorado, Boulder, Colorado 80309, USA
JILA, University of Colorado and National Institute of Standards and Technology, and Department of Physics, University of Colorado, Boulder, Colorado 80309, USA
JILA, University of Colorado and National Institute of Standards and Technology, and Department of Physics, University of Colorado, Boulder, Colorado 80309, USA