Mechanical Quantum Transduction and Sensing in the Presence of Thermal Gradients
Abstract
Quantum optomechanical systems enable coupling between a wide range of mechanical excitations and localized optical modes. Vibrations from the nano to microscale are a subject of study for applications in quantum transduction and piezoelectric quantum phononics with superconducting resonators. Thermal loads at the location of coupling, combined with non-ideal materials, are an important consideration throughout optomechanics and quantum phononics. Conversely advances in thermal sensing with uncooled bolometers require novel methods to read out localized thermal changes. We will conduct research on spatially-distributed mechanical resonator modes in the presence of local probes or thermal signals. We will explore models that take into account not only overall dissipation and mechanical displacement coupling to a probe, but also the dissipation map of the system and its overlap with the thermal gradient map of intricate devices. We hypothesize by generalizing the metrics by which we understand resonators we can make progress on challenges in quantum science with mechanical systems that are complementary to materials improvements. We predict implications for mechanical quantum systems in both the electrical and optical domains and at multiple scales. With our knowledge of modeling intricate mechanical membrane structures we will explore a proposed design for room temperature thermal sensing with a symmetrized high-quality perimeter mode.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Feb 06, 2025
- Source ID
- FA95502410173
Entities
People
- Cindy A. Regal
Organizations
- Air Force Office of Scientific Research
- Regents of the University of Colorado
- United States Air Force