4 papers
Optomechanical Detection of Individual Gas Collisions
Yu-Han Tseng, Clarke A. Hardy, T. W. Penny +4
We experimentally demonstrate the detection of momentum transfers from individual collisions of Kr, Xe, and SF with an optically levitated nanoparticle, finding good agreement…
Decay-Resolved Charge Changes from Radioactive Decays in Levitated Microparticles
Jiaxiang Wang, T. W. Penny, Yu-Han Tseng +2
We measure event-by-event discrete changes in the net electric charge of an optically levitated silica microsphere arising from individual radioactive decays within the sphere, in…
Search for Dark Matter Scattering from Optically Levitated Nanoparticles
Yu-Han Tseng, T. W. Penny, Benjamin Siegel +2
The development of levitated optomechanics has enabled precise force sensors that operate in the quantum measurement regime, opening up unique opportunities to search for new physi…
Optical Levitation of Arrays of Microspheres
Benjamin Siegel, Gadi Afek, Cecily Lowe +4
Levitated optomechanical systems are rapidly becoming leading tools for precision sensing of forces and accelerations acting on particles in the femtogram to nanogram mass range. T…