Tutorial: Current controllers for optimizing laser cooling on cold atom experiments

The design of single chip current source based on a common power operational amplifier is presented and demonstrated for the purpose of controlling applied magnetic fields using bias/shim electromagnets in cold atom experiments. The efficacy of the design is realized via application to red-detuned p...

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Bibliographic Details
Published inarXiv.org
Main Author Sabulsky, D O
Format Paper Journal Article
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 28.06.2024
Subjects
Cold atoms
Current sources
Laser cooling
Magnetic fields
Operational amplifiers
Physics - Atomic Physics
Physics - Instrumentation and Detectors
Raman spectroscopy
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ISSN2331-8422
DOI10.48550/arxiv.2406.19944

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Summary:The design of single chip current source based on a common power operational amplifier is presented and demonstrated for the purpose of controlling applied magnetic fields using bias/shim electromagnets in cold atom experiments. The efficacy of the design is realized via application to red-detuned polarization-gradient cooling of \(^{87}\)Rb down to 3 \(\mu\)K. Further, we demonstrate Raman spectroscopy using these devices to apply current and so generate a precise, accurate, and reproducible magnetic field. This work is intended as a short tutorial for new graduate students and postdocs of laser cooling and trapping.
Bibliography:SourceType-Working Papers-1
ObjectType-Working Paper/Pre-Print-1
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ISSN:2331-8422
DOI:10.48550/arxiv.2406.19944