Paul Leonard Hilario

Independent light fields generated using a phase-only spatial light modulator

We present a method of reshaping light in three dimensions via phase modulation. The method calculates the target computer-generated hologram individually and adds to it an appropriate transfer function to translate the reconstruction to any location in space. We are able to simultaneously generate independently controlled arbitrary patterns at different positions using a single laser beam.

Bessel beam scanning without mechanical scanner

We demonstrate motionless Bessel beam scanning with a spatial light modulator (SLM). The scanning control was emulated in the SLM by adding a grating phase or chirp phase to translate the beam transversely or axially.

Three-dimensional simulation of photopolymerization dynamics under broadband excitation

We simulate the growth of a voxel in a photopolymerization reaction where the degree of polymerization is determined by the decrease in the photoinitiator concentration. Simulation was done for both single-photon and two-photon photopolymerization.