title: Optical levitation measurements with intensity-modulated light beams.
abstract: Illumination of an optically levitated particle with an intensity-modulated transverse beam induces a transverse vibration of a particle in an optical trap. Based on this, the trapping force of a trap can be measured. Using an intensity-modulated longitudinal levitating beam causes a particle to move vertically, allowing for the determination of some aerodynamic parameters of a particle in air. The principles and the experimental phenomena are described and the initial results are given.
authors.forename: W
authors.initials: W
authors.lastname: Cai
authors.forename: F
authors.initials: F
authors.lastname: Li
authors.forename: S
authors.initials: S
authors.lastname: Sun
authors.forename: Y
authors.initials: Y
authors.lastname: Wang