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Optical properties of dispersive time-dependent materials
Jamison Sloan, Nicholas Rivera, John D Joannopoulos +1
Time-varying optical materials have attracted recent interest for their potential to enable frequency conversion, nonreciprocal physics, photonic time-crystals, and more. However,…
Creating large Fock states and massively squeezed states in optics using systems with nonlinear bound states in the continuum
Nicholas Rivera, Jamison Sloan, Yannick Salamin +2
The quantization of the electromagnetic field leads directly to the existence of quantum mechanical states, called Fock states, with an exact integer number of photons. Despite the…
Quasicrystalline Weyl points and dense Fermi-Bragg arcs
André Grossi e Fonseca, Thomas Christensen, John D. Joannopoulos +1
We introduce a general mechanism for obtaining Weyl points in a stack of 2D quasicrystals, which can be extended to any stack of aperiodic layers. We do so by driving a topological…
Non-Abelian nonsymmorphic chiral symmetries
Yi Yang, Hoi Chun Po, Vincent Liu +3
The Hofstadter model exemplifies a large class of physical systems characterized by particles hopping on a lattice immersed in a gauge field. Recent advancements on various synthet…
Free-electron-light interactions in nanophotonics
Charles Roques-Carmes, Steven E. Kooi, Yi Yang +7
When impinging on optical structures or passing in their vicinity, free electrons can spontaneously emit electromagnetic radiation, a phenomenon generally known as cathodoluminesce…