1 citations · 2 across the 3 of their papers we have counts for
5 papers
Propagation-invariant space-time supermodes in a multimode waveguide
Abbas Shiri, Scott Webster, Kenneth L. Schepler +1
When an optical pulse is spatially localized in a highly multimoded waveguide, its energy is typically distributed among a multiplicity of modes, thus giving rise to a speckled tra…
Severing the link between modal order and group index using hybrid guided space-time modes
Abbas Shiri, Ayman F. Abouraddy
The structure of an optical waveguide determines the characteristics of its guided modes, such as their spatial profile and group index. General features are shared by modes regard…
Hybrid guided space-time optical modes in unpatterned films
Abbas Shiri, Murat Yessenov, Scott Webster +2
Light can be confined transversely and delivered axially in a waveguide. However, waveguides are lossy static structures whose modal characteristics are fundamentally determined by…
Omni-resonant space-time wave packets
Abbas Shiri, Murat Yessenov, Rohinraj Aravindakshan +1
We describe theoretically and verify experimentally a novel class of diffraction-free pulsed optical beams that are `Omni-resonant': they have the remarkable property of transmissi…
Doubling the near-infrared photocurrent in a solar cell via omni-resonant coherent perfect absorption
Massimo L. Villinger, Abbas Shiri, Soroush Shabahang +4
Minimizing the material usage in thin-film solar cells can reduce manufacturing costs and enable mechanically flexible implementations, but concomitantly diminishes optical absorpt…