| Popis: |
Light exerts force or torque on objects through the momentum or angular momentum exchange between photons and the objects. For absorbing structures, light also induces a thermal gradient that can be used to power the object movement. The light‐driven mechanism, with the advantages of wireless, versatile modulation, and excellent spatial and temporal resolution, is very attractive and triggers various studies on micro‐ and nanomotors controlled by light. However, when the size of the motor becomes smaller and reaches the nanoscale, their interaction with light decreases and therefore it is very challenging to overcome the random Brownian motions. Optically resonant nanomotors can break such limitations. Alternatively, one can use optically resonant structures that significantly confine the light energy to control the movements of nanoobjects. Herein, the recent research on state‐of‐the‐art light resonant nanomotors, which includes both optically resonant nanomotors and nanomotors controlled by optically resonant nanostructures, is discussed. Their driving mechanisms, movement control, limitations, and possible improvements are introduced in detail. The exploration of the light resonant nanomotors in various applications is also introduced. Finally, an outlook on the future development of light resonant nanomotors is provided. |
Plný text