Abstract

We propose a novel way to achieve 3D display throng regular and uniform motion of microparticles. A spatial light modulator (SLM) is used to modulate a 532 nm continuous wave laser to generate a one-order Gaussian vortex beam for capturing the particles, and the vortex light is used to successfully transport carbon particles in line or circular motion. the microparticles are transported in air via focused vortex light to make a linear motion of 1 cm and a circular motion with a diameter of 0.4 cm within 12 seconds, and the distance and velocity of movement can be modulated by using lenses and SLM. This design also allows particles to do other regular movements, it is of great theoretical value to achieve the vortex laser beam manipulating the particles in air for future 3D display.

© 2022 The Author(s)