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Title: An ultrafast x-ray detector system at an elliptically polarizingundulator beamline

Abstract

An ultrafast x-ray detector system is under development atLawrence Berkeley National Laboratory (LBNL) for application primarily tostudyies of ultrafast magnetization dynamics. The system consists of a fslaser, an x-ray streak camera and an ellipitically polarization undulator(EPU) beamline. Polarized x-rays from an EPU can be used to measure x-raymagnetic circular dichroism (XMCD) of a sample. XMCD has the uniqueability to independently measure orbit and spin magnetization withsub-monolayer sensitivity and element specificity. The streak camera hassimultaneously a sub-picosecond temporal resolution and a high spatialresolution. The combination of the streak camera and EPU allows us tostudy the transfer of angular momentum from spin to orbit to the latticein the sample on an ultrafast time scale. We describe here theperformance of the ultrafast detector, the laser and the x-raysynchronization system. The observation of the demagnetization process ofdifferent samples demonstrates the ability of the apparatus.

Authors:
; ; ; ; ; ; ;
Publication Date:
Research Org.:
Ernest Orlando Lawrence Berkeley NationalLaboratory, Berkeley, CA (US); Advanced Light Source(ALS)
Sponsoring Org.:
USDOE Director, Office of Science
OSTI Identifier:
932498
Report Number(s):
LBNL-63526
TRN: US0803549
DOE Contract Number:
DE-AC02-05CH11231
Resource Type:
Journal Article
Resource Relation:
Journal Name: Nuclear Instruments and Methods in Physics ResearchA; Journal Volume: 582; Related Information: Journal Publication Date: 08/15/2007
Country of Publication:
United States
Language:
English
Subject:
46; ANGULAR MOMENTUM; DEMAGNETIZATION; LASERS; MAGNETIC CIRCULAR DICHROISM; MAGNETIZATION; PERFORMANCE; POLARIZATION; RESOLUTION; SENSITIVITY; SPATIAL RESOLUTION; SPECIFICITY; SPIN; STREAK CAMERAS; SYNCHRONIZATION; WIGGLER MAGNETS; advanced light source als

Citation Formats

Feng, J., Comin, A., Bartelt, A.F., Shin, H.J., Nasiatka, J.R., Padmore, H.A., Young, A.T., and Scholl, A. An ultrafast x-ray detector system at an elliptically polarizingundulator beamline. United States: N. p., 2007. Web.
Feng, J., Comin, A., Bartelt, A.F., Shin, H.J., Nasiatka, J.R., Padmore, H.A., Young, A.T., & Scholl, A. An ultrafast x-ray detector system at an elliptically polarizingundulator beamline. United States.
Feng, J., Comin, A., Bartelt, A.F., Shin, H.J., Nasiatka, J.R., Padmore, H.A., Young, A.T., and Scholl, A. Tue . "An ultrafast x-ray detector system at an elliptically polarizingundulator beamline". United States. doi:. https://www.osti.gov/servlets/purl/932498.
@article{osti_932498,
title = {An ultrafast x-ray detector system at an elliptically polarizingundulator beamline},
author = {Feng, J. and Comin, A. and Bartelt, A.F. and Shin, H.J. and Nasiatka, J.R. and Padmore, H.A. and Young, A.T. and Scholl, A.},
abstractNote = {An ultrafast x-ray detector system is under development atLawrence Berkeley National Laboratory (LBNL) for application primarily tostudyies of ultrafast magnetization dynamics. The system consists of a fslaser, an x-ray streak camera and an ellipitically polarization undulator(EPU) beamline. Polarized x-rays from an EPU can be used to measure x-raymagnetic circular dichroism (XMCD) of a sample. XMCD has the uniqueability to independently measure orbit and spin magnetization withsub-monolayer sensitivity and element specificity. The streak camera hassimultaneously a sub-picosecond temporal resolution and a high spatialresolution. The combination of the streak camera and EPU allows us tostudy the transfer of angular momentum from spin to orbit to the latticein the sample on an ultrafast time scale. We describe here theperformance of the ultrafast detector, the laser and the x-raysynchronization system. The observation of the demagnetization process ofdifferent samples demonstrates the ability of the apparatus.},
doi = {},
journal = {Nuclear Instruments and Methods in Physics ResearchA},
number = ,
volume = 582,
place = {United States},
year = {Tue May 01 00:00:00 EDT 2007},
month = {Tue May 01 00:00:00 EDT 2007}
}