Purple - Blue Gradient

Publications

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Please visit Ofer's profile, or check some highlights below.

Electron entanglement with photons - a roadmap towards strong coupling.

In a paper published in Physical Review Letters, Dr. Kfir explained the coupling mechanism between relativistic free electrons in a beam and photons confined to an optical micro-resonator. The coherent buildup of the coupling amplitude alongside with the high density of states in the cavity supports dramatically higher e-ph couplings than predicted before.

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The first nano-scale magnetic imaging with a high-order harmonics

Using a super stable apparatus for polarization-controlled circularly polarized high order harmonics (MAZEL-TOV), we succeeded (in the lab of Claus Ropers, with Dr. Sergey Zayko) in reaching a "holy grail" - the imaging of nanoscale magnetic features using high harmonics.

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Optical whispering-gallery-mode resonators strongly modulate the wave-function of free-electrons

In a recent publication in Nature we showed light trapped in micro-resonators drastically modulates the electron wave-function. In the next step (currently under review) we harnessed mature silicon photonics (SiPh) technology to make the light-electron interaction unprecedentedly strong, such that even a micro-watt of power can affect the electron state.

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