Ultracoherent Diamond Nanomechanical Resonators Protected by A Phononic Band Gap

Xinzhu Li; Ignas Lekavicius; Hailin Wang

doi:10.1364/CLEO_SI.2023.STu3F.2

CLEO 2023
Technical Digest Series (Optica Publishing Group, 2023),
paper STu3F.2
•https://doi.org/10.1364/CLEO_SI.2023.STu3F.2

Ultracoherent Diamond Nanomechanical Resonators Protected by A Phononic Band Gap

Xinzhu Li, Ignas Lekavicius, and Hailin Wang

CLEO: Science and Innovations 2023

San Jose, CA United States
7–12 May 2023
ISBN: 978-1-957171-25-8

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Quantum Optomechanics and Quantum Memories (STu3F)

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X. Li, I. Lekavicius, and H. Wang, "Ultracoherent Diamond Nanomechanical Resonators Protected by A Phononic Band Gap," in CLEO 2023, Technical Digest Series (Optica Publishing Group, 2023), paper STu3F.2.

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Abstract

We report the design, fabrication and characterization of diamond cantilevers embedded in a phononic crystal lattice. The ultracoherent mechanical modes feature Q-factors exceeding 10⁶ at frequencies as high as 100 MHz.

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