three dimensional position measurement of a levitated nanoparticle in a vacuum by a dove prism

• DOI: 10.3788/col201917.060901
• Publication Date: 2019-06-17T08:55:33Z
• Authors: Yu Zheng; Fangwen Sun
• Keywords: Prism; Position (finance)

Forward-scattering-light interferometry has become the most commonly used position detection scheme in optical levitation systems. Usually, three-set detectors are required to obtain three-dimensional motion information. Here, we simplify one set by inserting a Dove prism. We investigate role of prism measurement process with an system vacuum. The relationship between power spectral density and rotation angle is experimentally demonstrated analyzed. This work shows that can greatly reduce complexity experimental setup, which be applied compact systems for studies metrology, quantum physics, biology.