activity
20192026
most citedObservation of strong nonlinear interactions in parametric down-conversion of x-rays into ultraviolet radiation

13 citations · 21 across the 10 of their papers we have counts for

collaborators

11 papers

physics.optics2026

Monte Carlo Framework for Physics-Based Design and Optimization of X-Ray Compressive Ghost Imaging Systems

R. H. Shukrun, A. Ben-Yehuda, Y. Korotinsky +5

X-ray ghost imaging has emerged as a promising computational imaging modality capable of forming images from spatially integrated measurements. Unlike optical implementations, imag…

physics.optics2025

Surface Plasmon-Enhanced X-ray Ultraviolet Nonlinear Interactions

H. Aknin, O. Sefi, D. Borodin +3

X ray matter interactions are intrinsically weak, and the high energy and momentum of X rays pose significant challenges to applying strong light matter coupling techniques that ar…

physics.med-ph2024

25-Fold Resolution Enhancement of X-ray Microscopy Using Multipixel Ghost Imaging

O. Sefi, A. Ben Yehuda, Y. Klein +4

Hard x-ray imaging is indispensable across diverse fields owing to its high penetrability. However, the resolution of traditional x-ray imaging modalities, such as computed tomogra…

physics.app-ph2023

Monte Carlo Simulations for Ghost Imaging Based on Scattered Photons

R. H. Shukrun, Y. Klein., O. Sefi. +3

X-ray based imaging modalities are widely used in research, industry, and in the medical field. Consequently, there is a strong motivation to improve their performances with respec…

physics.med-ph2023

High-resolution computed tomography with scattered x-ray radiation and a single pixel detector

A. Ben Yehuda, O. Sefi, Y. Klein +4

X-ray imaging is a prevalent technique for non-invasively visualizing the interior of the human body and opaque instruments. In most commercial x-ray modalities, an image is formed…

physics.optics2022

High energy-resolution transient ghost absorption spectroscopy

Alok Kumar Tripathi, Yishai Klein, Edward Strizhevsky +10

We demonstrate the measurement of ultrafast dynamics using ghost spectroscopy and a pump-probe approach with an optical pump and a short-wavelength radiation probe. The ghost spect…

physics.ins-det2022★ 6 cited

High-resolution absorption measurements with free-electron lasers using ghost spectroscopy

Yishai Klein, Edward Strizhevsky, Flavio Capotondi +10

We demonstrate a simple and robust high-resolution ghost spectroscopy approach for x-ray and extreme ultraviolet absorption spectroscopy at free-electron laser sources. Our approac…

physics.optics2021

Chemical element mapping by x-ray ghost fluorescence

Y. Klein, O. Sefi, H. Schwartz +1

Chemical element mapping is an imaging tool that provides essential information on composite materials and it is crucial for a broad range of fields ranging from fundamental scienc…

physics.optics2020★ 2 cited

Measurements of Polarization Dependencies in Parametric Down-Conversion of X-rays into Ultraviolet Radiation

S. Sofer, O. Sefi, A. G. A. Nisbet +1

We present measurements of the polarization dependencies of the x-ray signal photons generated by the effect of parametric down-conversion of x rays into ultraviolet radiation. The…

eess.IV2020

High-speed x-ray imaging with single-pixel detector

O. Sefi, Y. Klein, E. Strizhevsky +2

We demonstrate experimentally the ability to use a single pixel detector for two-dimensional high-speed and high-resolution x-ray imaging. We image the rotation of a spinning chopp…

physics.optics2019★ 13 cited

Observation of strong nonlinear interactions in parametric down-conversion of x-rays into ultraviolet radiation

S. Sofer, O. Sefi, E. Strizhevsky +4

Nonlinear interactions between x-rays and long wavelengths can be used as a powerful atomic scale probe for light-matter interactions and for properties of valence electrons. This…