Crossover from positive to negative optical torque in mesoscale optical matter
oleh: Fei Han, John A. Parker, Yuval Yifat, Curtis Peterson, Stephen K. Gray, Norbert F. Scherer, Zijie Yan
| Format: | Article |
|---|---|
| Diterbitkan: | Nature Portfolio 2018-11-01 |
Deskripsi
Negative optical torque has been predicted theoretically, but experimental demonstrations have been scarce. Here, the authors show that the optical torque in a mesoscopic optical matter array can be reversed depending on number, separation and configuration of nanoparticles in a circularly polarized optical trap.