dc.contributor.author	Rajeev, Paramel Pattathil
dc.contributor.funder	Engineering and Physical Sciences Research Council	en_GB
dc.contributor.funder	Ministry of Education, Universities and Research (Ministero dell'università e della ricerca)	en_GB
dc.contributor.funder	Newton Fund	en_GB
dc.date.accessioned	2017-08-04T06:31:41Z
dc.date.available	2017-08-04T06:31:41Z
dc.date.issued	2017-08
dc.description.abstract	The data in here were obtained in 2011 from a Vulcan TAP experiment dedicated to measure magnetic fields at the rear of plastic targets using optical polarimetry. Details are given in the paper titled "Micron-scale mapping of megagauss magnetic fields using optical polarimetry to probe hot electron transport in petawatt-class laser-solid interactions" DOI : 10.1038/s41598-017-08619-1, SREP-16-47342. The data in here contain the raw CCD images that were used to generate the magnetic field profiles in Fig.2 in the publication. These are the measurements of the three Stokes parameters (I0 - the total transmission, I1, the parallel polarization component and I2, the perpendicular polarization component) of the reflected light from the target rear. Measurements were done with 3 calibrated optical CCD cameras. The camera settings are provided in the excel sheet. The method of calculating magnetic fields from the Stokes parameters is mentioned in the document. A matlab code developed internally was used for computations. The files here contain the Stoke parameters at three delays: (1) a negative delay where the reflected probe comes before the pump pulse, (2) probe incident 5 ps after the pump and (3) probe incident 10 ps after the pump. The files are named as "120701_5ps_I0", "120803_10ps_I1" etc, where "5ps", "10ps" etc. denote the time-delay (and therefore correspond to Fig. 2b, Fig. 2c etc. in the manuscript respectively) and I0, I1 etc denote the Stokes' components (as described in the Methods section). It was confirmed that I1^2+I2^2+I3^2=I0^2. Pixel-by-pixel calculation of the ellipticity was performed, detailed in the Methods section, and the magnetic field was calculated as described in "Magnetic field measurements.pdf".	en_GB
dc.description.sponsorship	EPSRC-Fusion Doctoral Training Network EP/J003832/1 MiUR PRIN-2012AY5LEL STFC (CLF) Newton-Bhabha Funds	en_GB
dc.identifier.uri	http://purl.org/net/edata/handle/edata/726
dc.identifier.uri	http://dx.doi.org/10.5286/edata/706
dc.language.iso	en	en_GB
dc.publisher	Nature Publishing Group	en_GB
dc.relation.isreferencedby	https://doi.org/10.1038/s41598-017-08619-1	en_GB
dc.rights	Creative Commons Attribution 4.0 International
dc.rights.uri	https://creativecommons.org/licenses/by/4.0/
dc.subject.other	polarimetry, Stokes parameters, magnetic field	en_GB
dc.title	Optical polarimetry measurements for diagnosing Magnetic fields	en_GB
dc.type	Collection	en_GB

Optical polarimetry measurements for diagnosing Magnetic fields

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