An Exploration of Hyperfine Structure of Rubidium Within The 5P 3/2 Excited-State Using Saturated Absorption Spectroscopy

Material Information

Title:
An Exploration of Hyperfine Structure of Rubidium Within The 5P 3/2 Excited-State Using Saturated Absorption Spectroscopy
Creator:
Trieu N. Le
Elina M. van Kempen
Priyanka M. Rupasinghe
Publication Date:

Notes

Abstract:
One of the laser-based spectroscopy techniques, the Saturated Absorption Specrroscopy (SAS), was performed to observe the hyperfine energy levels of rubidium 5P_{3/2} excited state. Two low-power beams at 780.24 nm produced by an external-cavity diode laser (ECDL) were sent through a vapor cell containing 85Rb and 87Rb. Another strong (high-power) beam from the same laser crosses one of the two beams in the opposite direction through the vapor cell. With atoms absorbing more energy from this strong beam, the low-power beam then shows less absorption, while the laser is scanning through the 5S_{1/2} (Ground) -> 5P_{3/2} atomic transition. By directing the two low-power beams transmitted through the vapor cell at a differential photodiode, atomic spectra corresponding to the hyperfine transitions were collected. Analysis of these spectra resulted in a precise measurement of the ratios of the hyperfine energy splittings of rubidium 5P_{3/2} state. These ratios were found to be DeltaF_{34}/DeltaF_{23} = 1:93 +/- 0.04 and DeltaF_{23}/DeltaF_{12} = 1:71 +/- 0.02, for ^{85}Rb and ^{87}Rb respectively, and agree very well with the expected values of 1.90 and 1.70.
Acquisition:
Collected for SUNY Oswego Institutional Repository by the online self-submittal tool. Submitted by Zach Vickery.

Record Information

Source Institution:
SUNY Oswego Institutional Repository
Holding Location:
SUNY Oswego Institution
Rights Management:
All applicable rights reserved by the source institution and holding location.