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Optical trapping and cooling of high-aspect-ratio hexagonal prisms for kHz gravitational wave detection

ORAL

Abstract

We present an update on the optical trapping and cooling of high-aspect-ratio Yb:beta-NaYF hexagonal prisms in vacuum for the Levitated Sensor Detector (LSD) project, which detects high-frequency (10-300 kHz) gravitational waves. By making use of this high mass, low photon-recoil-heating geometry in the LSD, we could achieve its designed sensitivity for probing sources like superradiance from axion clouds around spinning black holes and primordial black hole mergers. We discuss the recent progress of cooling the motional temperature of hexagons using parametric feedback cooling, as well as the LSD 1-meter prototype that is in construction.

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Publication: G. Winstone, Z. Wang, S. Klomp, R. G. Felsted, A. Laeuger, C. Gupta, D. Grass, N. Aggarwal, J. Sprague, P. J. Pauzauskie, S. L. Larson, V. Kalogera, A. A. Geraci (LSD Collaboration), Optical Trapping of High-Aspect-Ratio NaYF Hexagonal Prisms for kHz-MHz Gravita- tional Wave Detectors, Phys. Rev. Lett. 129 (2022) 053604.

Presenters

  • Zhiyuan Wang

    Northwestern University

Authors

  • Zhiyuan Wang

    Northwestern University

  • Shelby Klomp

    Northwestern University

  • George P Winstone

    Northwestern University

  • Lars Forberger

    University of Washington

  • Jacob Sprague

    Northwestern University

  • Seca Widyatmodjo

    Northwestern University

  • Andrew S Laeugar

    California Institute of Technology, Northwestern University

  • Robert Felsted

    University of Washington

  • Chaman Gupta

    University of Washington

  • Daniel Grass

    Northwestern University

  • Nancy Aggarwal

    University of California, Davis

  • Peter Pauzauskie

    University of Washington

  • Shane L Larson

    Northwestern University

  • Vicky Kalogera

    Northwestern University

  • Andrew A Geraci

    Northwestern University