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physics.optics2020
Force and acceleration sensing with optically levitated nanogram masses at microkelvin temperatures
Fernando Monteiro, Wenqiang Li, Gadi Afek +3
This paper demonstrates cooling of the center-of-mass motion of 10 m-diameter optically levitated silica spheres to an effective temperature of K, achieved by minimiz…
physics.optics2018
Optical Rotation of Levitated Spheres in High Vacuum
Fernando Monteiro, Sumita Ghosh, Elizabeth C. van Assendelft +1
A circularly polarized laser beam is used to levitate and control the rotation of microspheres in high vacuum. At low pressure, rotation frequencies as high as 6 MHz are observed f…