Detecting high frequency gravitational waves with optically levitated high aspect ratio NaYF disc-likes capable of solid state laser cooling

George P. Winstone; Andrew Geraci

doi:10.1117/12.3013033

13 March 2024 Detecting high frequency gravitational waves with optically levitated high aspect ratio NaYF disc-likes capable of solid state laser cooling

George P. Winstone, Andrew Geraci

Author Affiliations +

Proceedings Volume PC12902, Photonic Heat Engines: Science and Applications VI; PC129020K (2024) https://doi.org/10.1117/12.3013033
Event: SPIE OPTO, 2024, San Francisco, California, United States

Abstract

We will present an update on the Levitated Sensor Detector (LSD) project for detection of high frequency (10-100kHz) gravitational waves above the region previously probed by LIGO. We discuss experimental trapping results of different geometries of NaYF4 hexagonal plates and our recent milestone of increasing the levitated test mass by an order of magnitude. These materials are excellent candidates for laser refrigeration of the internal temperature, which would enable trapping with larger optical intensities and GW detection at frequencies approaching the MHz range. Finally, we examine the progress of the 1-meter prototype that is under construction at Northwestern University.

Conference Presentation

Citation Download Citation

George P. Winstone and Andrew Geraci "Detecting high frequency gravitational waves with optically levitated high aspect ratio NaYF disc-likes capable of solid state laser cooling", Proc. SPIE PC12902, Photonic Heat Engines: Science and Applications VI, PC129020K (13 March 2024); https://doi.org/10.1117/12.3013033

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