Investigation of Hyperfine Levels of Rb

Tim ValdésEmmett Weindruch

ContentsTheoryApparatusData / ResultsConclusions

1) See ref. 1

Theory• Without saturation, expect Doppler-broadened peaks

• Width of Doppler-broadened peaks is given by: ΔvD=2v0(2kT*ln(2)/Mc2)1

• Width of the peaks should be 511.3 MHz• See hyperfine levels in a saturated absorption

• Source of hyperfine levels originates in the nucleus• Hyperfine splittings due to nuclear spin coupling

Apparatus

Apparatus

Data / Results

Appearance of doublet peaksFWHM of peaks:

1. 843MHz2. 806MHz3. 636MHz4. 633MHz

1

23

4

ConclusionsOverlapping of the two higher energy peaks resulted in larger FWHM values24% error in peak widthHyperfine levels limited to the resolution of the detector

ReferenceDavis, Christopher C. Lasers and Electro-Optics: Fundamentals and Engineering. Cambridge University Press. Cambridge, Great Britain. 1996.