Spatial light modulators (SLMs) provide a powerful technology to perform high-resolution and high-speed phase modulation of laser radiation for the generation of structured laser beams. The possibility of using SLMs for dynamic laser manipulation of airborne light-absorbing particles due to the action of the photophoretic forces, demonstrating different types of manipulation, including confinement of the trapped particles, two- and three-dimensional guiding of the trapped particles, their controllable revolution, and the transfer of trapped particles between different optical traps, is shown. For this purpose, different phase masks that can be used for the generation of the desired optical traps with the help of SLMs are provided, opening new possibilities for using SLMs for laser manipulation in air and allowing for the realization of all-optical conveyors for the fabrication of microdevices in the future. |
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Cited by 3 scholarly publications.
Particles
Spatial light modulators
Video
Optical tweezers
Axicons
Superposition
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