Optical trapping and cooling of dielectric plates and discs for precision sensing and fundamental physics

Andrew Geraci

doi:10.1117/12.3031872

3 October 2024 Optical trapping and cooling of dielectric plates and discs for precision sensing and fundamental physics

Andrew Geraci

Author Affiliations +

Proceedings Volume PC13112, Optical Trapping and Optical Micromanipulation XXI; PC131120T (2024) https://doi.org/10.1117/12.3031872
Event: Nanoscience + Engineering, 2024, San Diego, California, United States

Abstract

Optically levitated particles in high vacuum achieve excellent environmental decoupling making them ultrasensitive detectors of forces or accelerations. While many levitated optomechanics experiments employ spherical particles, for some applications non-spherical geometries offer advantages. For example, rod-shaped or dumbbell shaped particles have been demonstrated for torque and rotation sensing and plate-like and disc-like particles with a high aspect ratio offer the possibility of a high mass-frequency product and low photon recoil heating, making them well suited for detection of high-frequency accelerations. I will discuss recent work on trapping and cooling high-aspect ratio dielectric particles and our progress towards achieving optimal detection of their motion to improve the sensitivity, cooling, and quantum control in these systems. Finally, I will place these results into context of the levitated sensor detector (LSD) experiment being constructed which intends to search for high-frequency gravitational waves.

Conference Presentation

Citation Download Citation

Andrew Geraci "Optical trapping and cooling of dielectric plates and discs for precision sensing and fundamental physics", Proc. SPIE PC13112, Optical Trapping and Optical Micromanipulation XXI, PC131120T (3 October 2024); https://doi.org/10.1117/12.3031872

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