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Ultrafast electron diffraction (UED) instruments typically operate at kHz or lower repetition rates and rely on indirect detection of electrons. However, these experiments encounter limitations because they are required to use electron…

Chemical Physics · Physics 2024-08-06 Fernando Rodriguez Diaz , Mark Mero , Kasra Amini

Entanglement is a key resource in quantum technologies, enhancing precision and resolution in imaging and sensing by leveraging the cross-correlation of photon pairs. This correlation enables precise time synchronization of photons reaching…

The authors demonstrate a form of two-photon-counting interferometry by measuring the coincidence counts between single-photon-counting detectors at an output port of a Mach-Zehnder Interferometer (MZI) following injection of broad-band…

We propose a nonlinear imaging scheme with undetected photons that overcomes the diffraction limit by transferring near-field information at one wavelength to far-field information of a correlated photon with a different wavelength…

Quantum Physics · Physics 2022-05-11 Elkin A. Santos , Thomas Pertsch , Frank Setzpfandt , Sina Saravi

The injection of electrons into a laser wakefield accelerator (LWFA) is observed to generate an intense coherent ultra-broadband and ultrashort pulse radiation flash, consistent with the acceleration of electrons from rest to nearly the…

Accelerator Physics · Physics 2018-10-31 B. Miao , L. Feder , J. Elle , A. J. Goers , D. Woodbury , F. Salehi , J. K. Wahlstrand , H. M. Milchberg

Ultrafast lasers ($< 500$ fs) have enabled laser-matter interactions at intensities exceeding $10^{18} \rm{Wcm}^{-2}$ with only millijoules of laser energy. However, as pulse durations become shorter, larger spectral bandwidths are…

It is shown that the interaction of an electron beam with polarized electromagnetic wave of laser photons propagating in the same direction in a short interaction region results in significant transversal deflection of the electrons which…

High Energy Physics - Experiment · Physics 2007-05-23 K. A. Ispirian , M. K. Ispiryan

We report the first entanglement generation experiment using an on-chip slow light device. With highly efficient spontaneous four-wave mixing enhanced by the slow light effect in a coupled resonator optical waveguide based on a silicon…

Quantum Physics · Physics 2014-01-30 Hiroki Takesue , Nobuyuki Matsuda , Eiichi Kuramochi , Masaya Notomi

We experimentally demonstrate sum-frequency generation (SFG) with entangled photon-pairs, generating as many as 40,000 SFG photons per second, visible even to the naked eye. The nonclassical nature of the interaction is exhibited by a…

Quantum Physics · Physics 2007-05-23 Barak Dayan , Avi pe'er , Asher A. Friesem , Yaron Silberberg

We investigate entanglement transfer from a system of two spin-entangled electron-hole pairs, each placed in a separate single mode cavity, to the photons emitted during their recombination process. Dipole selection rules and a splitting…

Mesoscale and Nanoscale Physics · Physics 2010-06-24 Jan C. Budich , Bjoern Trauzettel

The simultaneous laser-driven acceleration and angular manipulation of the fast electron beam is experimentally demonstrated. The bunch of multi-MeV energy charged particles is generated during the propagation of the femtosecond laser pulse…

Plasma Physics · Physics 2023-10-19 K. Ivanov , D. Gorlova , I. Tsymbalov , I. Tsygvintsev , S. Shulyapov , R. Volkov , A. Savelev

Electrical signals derived from optical sources have achieved record-low levels of phase noise, and have demonstrated the highest frequency stability yet achieved in the microwave domain. Attaining such ultrastable phase and frequency…

Optics · Physics 2023-03-01 Franklyn Quinlan

We study (inverse) photoemission from systems with strong coupling of doped carriers to phonons. Using an adiabatic approximation, we develop a method for calculating spectra. This method is particularly simple for systems where the…

Strongly Correlated Electrons · Physics 2007-05-23 O. Rösch , O. Gunnarsson

While detection of optical photons is today achieved with very high efficiencies, the detection of microwave fields at the photon level still poses non-trivial experimental challenges. In this Letter we propose a model of microwave…

Quantum Physics · Physics 2014-10-16 Shabir Barzanjeh , M. C. de Oliveira , Stefano Pirandola

The coherent interaction between free electrons and optical fields can produce free-electron compression and push the temporal resolution of ultrafast electron microscopy to the attosecond regime. However, a large electron-light interaction…

Quantum Physics · Physics 2025-03-27 Cruz I. Velasco , F. Javier García de Abajo

We present a new paradigm for understanding optical absorption and hot electron dynamics experiments in graphene. Our analysis pivots on assigning proper importance to phonon assisted indirect processes and bleaching of direct processes. We…

Materials Science · Physics 2017-11-22 Yuan Yang , Grigory Kolesov , Lucas Kocia , Eric J. Heller

Controlling free-electron momentum states is of high interest in electron microscopy to achieve momentum and energy resolved probing and manipulation of physical systems. Free-electron and light interactions have emerged as a powerful…

Quantum Physics · Physics 2024-04-08 Sven Ebel , Nahid Talebi

We use a novel scanning electron Mach-Zehnder interferometer constructed in a conventional transmission electron microscope to perform inelastic interferometric imaging with free electrons. An electron wave function is prepared in two paths…

Mesoscale and Nanoscale Physics · Physics 2022-04-20 Cameron W. Johnson , Amy E. Turner , F. Javier García de Abajo , Benjamin J. McMorran

Here, we demonstrate the radiative polarization of high-energy electron beams in collisions with ultrashort pulsed bi-chromatic laser fields. Employing a Boltzmann kinetic approach for the electron distribution allows us to simulate the…

Plasma Physics · Physics 2019-12-06 Daniel Seipt , Dario Del Sorbo , Christopher P. Ridgers , Alec G. R. Thomas

Fast electrons spectromicroscopies enable to measure quantitatively the optical response of excitations with unrivaled spatial resolution. However, due to their inherently scalar nature, electron waves cannot access to polarization-related…

Optics · Physics 2021-05-26 Hugo Lourenço-Martins , Davy Gérard , Mathieu Kociak
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