551 citations · 784 across the 5 of their papers we have counts for
4 papers · 1 filter
Linear multiport photonic interferometers: loss analysis of temporally-encoded architectures
Haoyu Qi, Lukas G. Helt, Daiqin Su +2
Implementing spatially-encoded universal linear multiport interferometers on integrated photonic platforms with high controllability becomes increasingly difficult as the number of…
Hybrid spatiotemporal architectures for universal linear optics
Daiqin Su, Ish Dhand, Lukas G. Helt +2
We present two hybrid linear-optical architectures that simultaneously exploit spatial and temporal degrees of freedom of light to effect arbitrary discrete unitary transformations…
The effect of microscopic scattering on the nonlinear transmission of terahertz fields through monolayer graphene
L. G. Helt, M. M. Dignam
We consider the nonlinear terahertz response of n-doped monolayer graphene at room temperature using a microscopic theory of carrier dynamics. Our tight-binding model treats the ca…
Elastic Purcell effect
Mikołaj K. Schmidt, L. G. Helt, Christopher G. Poulton +1
In this work, we introduce an elastic analog of the Purcell effect and show theoretically that spherical nanoparticles can serve as tunable and robust antennas for modifying the em…