activity
20192025
collaborators
Showing physics.opticsShow all

5 papers · 1 filter

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.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.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

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…

physics.optics2019

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…