In this work, we present an approach to modulate femtosecond laser beams into Bessel
beams with a spatial light modulator (SLM) for two-photon polymerization applications.
Bessel beams with different parameters are generated and annular optical fields are
produced at the focal plane of the objective. Uniform cylinder microstructures are fabricated
by a single illumination during a few seconds without stage translation. By modulating the
holograms encoded on the SLM, the diameters of the fabricated annular structures can be …