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Playing quantum noise on a nanomechanical string (Conference Presentation)
Author(s): Dalziel J. Wilson; Tobias J. Kippenberg; Vivishek Sudhir; Amir H. Ghadimi; Mohammad J. Bereyhi; Sergey Federov; Nils J. Engelsen; Ryan Schilling; Hendrik Shuetz

Paper Abstract

Nanomechanical resonators are exquisite force sensors and have recently been used to “feel” the vacuum fluctuations of a laser field. I’ll describe a system consisting of a glass nanostring coupled to an optical microcavity and how it has been used to not only sense radiation pressure shot noise, but also squeeze it, to cool a vibration of the string to near its ground state, and to witness its zero-point energy as motional sideband asymmetry—all long-standing goals in the field of optomechanics. Underlying these advances are new insights into dissipation of nanomechanical resonators. Combining strain and mode-shape engineering, we've recently fabricated strings with effective masses of picograms, frequencies of megahertz, and quality factors approaching 1 billion at room temperature. These numbers spark the imagination, inviting speculation about applications ranging from ultrasensitive accelerometry to tests of quantum collapse models.

Paper Details

Date Published: 9 September 2019
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Proc. SPIE 11083, Optical Trapping and Optical Micromanipulation XVI, 110830V (9 September 2019); doi: 10.1117/12.2531545
Show Author Affiliations
Dalziel J. Wilson, The Univ. of Arizona (United States)
Tobias J. Kippenberg, Ecole Polytechnique Fédérale de Lausanne (Switzerland)
Vivishek Sudhir, Ecole Polytechnique Fédérale de Lausanne (Switzerland)
Amir H. Ghadimi, The Univ. of Arizona (United States)
Mohammad J. Bereyhi, Ecole Polytechnique Fédérale de Lausanne (Switzerland)
Sergey Federov, Ecole Polytechnique Fédérale de Lausanne (Switzerland)
Nils J. Engelsen, Ecole Polytechnique Fédérale de Lausanne (Switzerland)
Ryan Schilling, Ecole Polytechnique Fédérale de Lausanne (Switzerland)
Hendrik Shuetz, Ecole Polytechnique Fédérale de Lausanne (Switzerland)


Published in SPIE Proceedings Vol. 11083:
Optical Trapping and Optical Micromanipulation XVI
Kishan Dholakia; Gabriel C. Spalding, Editor(s)

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