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Controlling light emission with electron wave interference
Chitraang Murdia, Nicholas Rivera, Thomas Christensen +4
It is a long standing question whether or not one can change the nature of spontaneous emission by a free electron through shaping the electron wavefunction. On one hand, shaping t…
Shaping Long-lived Electron Wavepackets for Customizable Optical Spectra
Rumen Dangovski, Nicholas Rivera, Marin Soljacic +1
Electrons in atoms and molecules are versatile physical systems covering a vast range of light-matter interactions, enabling the physics of Rydberg states, photon-photon bound stat…
Nanophotonic Particle Simulation and Inverse Design Using Artificial Neural Networks
John Peurifoy, Yichen Shen, Li Jing +6
We propose a method to use artificial neural networks to approximate light scattering by multilayer nanoparticles. We find the network needs to be trained on only a small sampling…
Rotational Unit of Memory
Rumen Dangovski, Li Jing, Marin Soljacic
The concepts of unitary evolution matrices and associative memory have boosted the field of Recurrent Neural Networks (RNN) to state-of-the-art performance in a variety of sequenti…
Smith-Purcell Radiation from Low-Energy Electrons
Aviram Massuda, Charles Roques-Carmes, Yujia Yang +6
Recent advances in the fabrication of nanostructures and nanoscale features in metasurfaces offer a new prospect for generating visible, light emission from low energy electrons. I…
Spectral and spatial shaping of Smith Purcell Radiation
Roei Remez, Niv Shapira, Charles Roques-Carmes +6
The Smith Purcell effect, observed when an electron beam passes in the vicinity of a periodic structure, is a promising platform for the generation of electromagnetic radiation in…