Ultra-high-Q torsional nanomechanics for quantum experiments and precision measurement

Aman R. Agrawal; Charles Condos; Christian Pluchar; Jon Pratt; Stephan Schlamminger; Dalziel Wilson

doi:10.1364/CLEO_QELS.2022.FW4D.3

Conference on Lasers and Electro-Optics
Technical Digest Series (Optica Publishing Group, 2022),
paper FW4D.3
•https://doi.org/10.1364/CLEO_QELS.2022.FW4D.3

Ultra-high-Q torsional nanomechanics for quantum experiments and precision measurement

Aman R. Agrawal, Charles Condos, Christian Pluchar, Jon Pratt, Stephan Schlamminger, and Dalziel Wilson

CLEO: QELS_Fundamental Science 2022

San Jose, California United States
15–20 May 2022
ISBN: 978-1-957171-05-0

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Quantum Optomechanics and Transduction (FW4D)

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A. R. Agrawal, C. Condos, C. Pluchar, J. Pratt, S. Schlamminger, and D. Wilson, "Ultra-high-Q torsional nanomechanics for quantum experiments and precision measurement," in Conference on Lasers and Electro-Optics, Technical Digest Series (Optica Publishing Group, 2022), paper FW4D.3.

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Abstract

We show that torsion modes of strained nanoribbons can have ultrahigh Q-factors, are naturally soft-clamped, and can be mass-loaded without changing their Q. We leverage these insights to realize sub-SQL optical lever measurements and chip-scale torsion pendula with μHz damping rates.

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