20–23 Oct 2026
University of Washington
America/Los_Angeles timezone

First Search for Axions with the Orpheus Resonant Dielectric Haloscope

22 Oct 2026, 18:10
20m
103 (Alder Hall)

103

Alder Hall

Presentation RDC 2 Photodectors RDC 2 Photodetectors

Speaker

James Sinnis (University of Washington)

Description

The Orpheus experiment has conducted its first search for axions in the mass range 65.3 μeV to 69.3 μeV. This talk will contain a description of the experiment and the results of this search. The haloscope serves as a proof-of-concept of this unique haloscope design, which employs dielectric plates spaced periodically within a resonant cavity. Its peculiar advantages will be discussed alongside the difficulties of making such a haloscope, and the solutions we have arrived at. Remaining challenges and potential for scaling the design to greater sensitivities will also be discussed.

Author

James Sinnis (University of Washington)

Presentation materials