Light engine: optically induced and controlled matter rotation by means of traveling and standing waves

Tigran V. Galstian

doi:10.1117/12.277732

7 July 1997 Light engine: optically induced and controlled matter rotation by means of traveling and standing waves

Tigran V. Galstian

Proceedings Volume 3123, Materials Research in Low Gravity; (1997) https://doi.org/10.1117/12.277732
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

Abstract

Both quantum and electromagnetic theories of light predict the existence of angular momentum of the light (or photon spin) S and the possibility of its transfer to the matter /1/. Complex electromagnetic fields (e.g., higher order Laguerre-Gaussian beams) may carry, in addition, an "orbital" angular momentum L, associated with their spatial non uniformity /2/. These momentums may be transferred to matter when the light is absorbed by the matter. In general case, the torque r exerted by absorbed light has contributions from both momentums S and L, and may be presented as T(Pa/O))(1+cY), where a is the absorbed power, Co - light frequency, 1- is the azimuthal index (or charge) of the beam, and a=O for linear and = for circular polarizations /2, 3/.

Citation Download Citation

Tigran V. Galstian "Light engine: optically induced and controlled matter rotation by means of traveling and standing waves", Proc. SPIE 3123, Materials Research in Low Gravity, (7 July 1997); https://doi.org/10.1117/12.277732

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