Note: A radiofrequency voltage-controlled current source for quantum spin manipulation

Note: A radiofrequency voltage-controlled current source for quantum spin manipulation

We present a design for a wide-bandwidth, voltage-controlled current source that is easily integrated with radiofrequency magnetic field coils. Our design uses current feedback to compensate for the frequency-dependent impedance of a radiofrequency antenna. We are able to deliver peak currents great...

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Veröffentlicht in:Review of scientific instruments 2020-10, Vol.91 (10), p.104708-104708
Hauptverfasser: Barker, D.S., Restelli, A., Fedchak, J.A., Scherschligt, J., Eckel, S.
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container_end_page 104708
container_issue 10
container_start_page 104708
container_title Review of scientific instruments
container_volume 91
creator Barker, D.S.
Restelli, A.
Fedchak, J.A.
Scherschligt, J.
Eckel, S.
description We present a design for a wide-bandwidth, voltage-controlled current source that is easily integrated with radiofrequency magnetic field coils. Our design uses current feedback to compensate for the frequency-dependent impedance of a radiofrequency antenna. We are able to deliver peak currents greater than 100 mA over a 300 kHz to 54 MHz frequency span. The radiofrequency current source fits onto a printed circuit board smaller than 4 cm 2 and consumes less than 1.3 W of power. It is suitable for use in deployable quantum sensors and nuclear-magnetic-resonance systems.
doi_str_mv 10.1063/5.0011813
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title Note: A radiofrequency voltage-controlled current source for quantum spin manipulation
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