Optical trapping of hexagonal microdisks for detection of high frequency gravitational waves

Zhiyuan (Aaron) Wang; Shelby Klomp; George P. Winstone; Daniel H. Grass; Andrew Laeuger; Greg Felsted; Peter Pauzauskie; Jacob Sprague; Nancy Aggarwal; Shane L. Larson; Vicky Kalogera; Andrew Geraci

doi:10.1117/12.2635914

3 October 2022 Optical trapping of hexagonal microdisks for detection of high frequency gravitational waves

Zhiyuan (Aaron) Wang, Shelby Klomp, George P. Winstone, Daniel H. Grass, Andrew Laeuger, Greg Felsted, Peter Pauzauskie, Jacob Sprague, Nancy Aggarwal, Shane L. Larson, Vicky Kalogera, Andrew Geraci

Author Affiliations +

Proceedings Volume PC12198, Optical Trapping and Optical Micromanipulation XIX; PC121980V (2022) https://doi.org/10.1117/12.2635914
Event: SPIE Nanoscience + Engineering, 2022, San Diego, California, United States

Abstract

We present the first experimental optical trapping of ytterbium-doped sodium yttrium fluoride (Yb:NaYF4) hexagonal microdisks with a dual-beam dipole trap. These high-aspect-ratio hexagonal microdisks exhibit reduced photon recoil heating due to light scattering while allowing for 10s of kHz mechanical frequencies. These features make them good candidates as force sensors for the Levitated Sensor Detector (LSD) project, which detects high-frequency gravitational waves above the region previously probed by LIGO. We discuss motional dynamics of these microdisks by showing their motional spectra in comparison with analytical and numerical models and the recent progress of 1-meter LSD prototype that is under development at Northwestern University.

Conference Presentation

Citation Download Citation

Zhiyuan (Aaron) Wang, Shelby Klomp, George P. Winstone, Daniel H. Grass, Andrew Laeuger, Greg Felsted, Peter Pauzauskie, Jacob Sprague, Nancy Aggarwal, Shane L. Larson, Vicky Kalogera, and Andrew Geraci "Optical trapping of hexagonal microdisks for detection of high frequency gravitational waves", Proc. SPIE PC12198, Optical Trapping and Optical Micromanipulation XIX, PC121980V (3 October 2022); https://doi.org/10.1117/12.2635914

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