In this talk, a new type of beam shaper will be discussed, capable of generating arbitrary vector spatiotemporal beams, where the user can define the amplitude, phase, and polarization independently for each point in space and time. This beam shaper was recently used to demonstrate time reversed optical waves. Such waves propagate through complex media, as if watching a traditional scattering process in reverse - starting as a complicated ‘pre-scattered’ wave, which then becomes a desired target field at the distal end of the complex media.
Spring 2021 speakers organized by Prof. David A.B. Miller
Bio: Joel Carpenter is an Australian Research Council DECRA fellow at the University of Queensland in Brisbane, Australia. His research focuses on the measurement and manipulation of light's spatiotemporal properties. He received his PhD in Electrical Engineering from the University of Cambridge, UK in 2012 for his work on Mode Division Multiplexing in optical telecommunications before working as a postdoctoral researcher at the University of Sydney, Australia. In 2015, Joel returned to his hometown of Brisbane to take up a faculty position at the University of Queensland.