TY - JOUR
KW - Fourier transforms
KW - Hyperspectral imaging
KW - Kerr effect
KW - Material properties
KW - Spatial resolution
KW - Thin films
AU - Nathan Brooks
AU - Kevin Dorney
AU - Jennifer Ellis
AU - Alexander Denton
AU - Christian Gentry
AU - Sinéad Ryan
AU - Quynh Nguyen
AU - Drew Morrill
AU - Henry Kapteyn
AU - Margaret Murnane
AB - We present a method for achieving hyperspectral magnetic imaging in the extreme ultraviolet (EUV) region based on high-harmonic generation (HHG). By interfering two mutually coherent orthogonally-polarized and laterally-sheared HHG sources, we create an EUV illumination beam with spatially-dependent ellipticity. By placing a magnetic sample in the beamline and sweeping the relative time delay between the two sources, we record a spatially resolved interferogram that is sensitive to the EUV magnetic circular dichroism of the sample. This image contains the spatially-resolved magneto-optical response of the sample at each harmonic order, and can be used to measure the magnetic properties of spatially inhomogeneous magnetic samples.
BT - Opt. Express
DA - 2024-05
DO - 10.1364/OE.521669
M1 - 11
N2 - We present a method for achieving hyperspectral magnetic imaging in the extreme ultraviolet (EUV) region based on high-harmonic generation (HHG). By interfering two mutually coherent orthogonally-polarized and laterally-sheared HHG sources, we create an EUV illumination beam with spatially-dependent ellipticity. By placing a magnetic sample in the beamline and sweeping the relative time delay between the two sources, we record a spatially resolved interferogram that is sensitive to the EUV magnetic circular dichroism of the sample. This image contains the spatially-resolved magneto-optical response of the sample at each harmonic order, and can be used to measure the magnetic properties of spatially inhomogeneous magnetic samples.
PB - Optica Publishing Group
PY - 2024
SP - 19076
EP - 19087
T2 - Opt. Express
TI - High-harmonic spin-shearing interferometry for spatially resolved EUV magneto-optical spectroscopy
UR - https://opg.optica.org/oe/abstract.cfm?URI=oe-32-11-19076
VL - 32
ER -