In this project we aim to extend the study on Janus particles to non-spherical active particles, like elongated Janus particles, Janus micro- and nanorods. We explore how the difference in shape crucially affects and determines the self-assembly properties. We aim to study three-dimensional dynamics of (spherical and non-spherical) active particles in a tightly focused optical beam (i.e., optical tweezers), exploring the possibility of their confinement, manipulation, and control of their three-dimensional orientation.