DocumentCode
1544108
Title
Imaging high-frequency magnetic and electric fields using a high-T/sub c/ SQUID microscope
Author
Chatraphorn, S. ; Fleet, E.F. ; Welistood, F.C. ; Black, R.C.
Author_Institution
Dept. of Phys., Maryland Univ., College Park, MD, USA
Volume
9
Issue
2
fYear
1999
fDate
6/1/1999 12:00:00 AM
Firstpage
4381
Lastpage
4384
Abstract
We have used a liquid-nitrogen-cooled scanning SQUID microscope to image room-temperature sources of high-frequency magnetic fields and electric fields. We detect the fields by monitoring their effect on the SQUID modulation depth; high-frequency magnetic fields affect the modulation depth differently than high-frequency electric fields. We briefly describe our system, explain the principle behind detection of magnetic and electric fields, and show images of some simple room-temperature samples in the 0.8-13 GHz frequency range.
Keywords
SQUIDs; electric field measurement; high-temperature superconductors; magnetic field measurement; microscopes; 0.8 to 13 GHz; high T/sub c/ superconductor; high frequency electric field imaging; high frequency magnetic field imaging; modulation depth; scanning SQUID microscope; Frequency; Magnetic fields; Magnetic flux; Magnetic force microscopy; Magnetic modulators; Magnetic sensors; Radiofrequency amplifiers; SQUIDs; Superconducting magnets; Voltage;
fLanguage
English
Journal_Title
Applied Superconductivity, IEEE Transactions on
Publisher
ieee
ISSN
1051-8223
Type
jour
DOI
10.1109/77.783995
Filename
783995
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