3 papers
physics.ins-det2020
Active Optical Table Tilt Stabilization
Charles W. Lewandowski, Tyler D. Knowles, Zachariah B. Etienne +1
We show that a simple modification to an optical table with pneumatic vibration isolation can be used to actively reduce the long term drift in the tilt of the table by nearly a fa…
physics.app-ph2020
High sensitivity accelerometry with a feedback-cooled magnetically levitated microsphere
Charles W. Lewandowski, Tyler D. Knowles, Zachariah B. Etienne +1
We show that a magnetically levitated microsphere in high vacuum can be used as an accelerometer by comparing its response to that of a commercially available geophone. This system…
quant-ph2018
Cooling the Motion of a Silica Microsphere in a Magneto-Gravitational Trap in Ultra-High Vacuum
Bradley R. Slezak, Charles W. Lewandowski, Jen-Feng Hsu +1
Levitated optomechanical systems, and particularly particles trapped in vacuum, provide unique platforms for studying the mechanical behavior of objects well-isolated from their en…