Doppler‐free optical double‐resonance Stark spectroscopy using modulation sidebands

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DOIResolve DOI: https://doi.org/10.1063/1.89451
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  1. National Research Council of Canada. NRC Herzberg Institute of Astrophysics
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Abstract
An electro‐optic modulator, driven at a single radio frequency ν, is used to create sidebands (νL±ν) on the frequency νL of a cw single‐mode CO2 laser. Laser‐induced line narrowing in molecular Stark spectroscopy is demonstrated, using double resonances of the copropagating waves at νL and (νL±ν) with pairs of coupled Doppler‐broadened transitions. Doppler‐free Stark spectra of the molecules PH3, 13CH3F, and 12CH3F are used to illustrate the technique. For PH3 it is found that the electric dipole moment vibrational difference ‖μ (v2=1)−μ (v=0) ‖⩽0.005 D.
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PublisherAIP Publishing
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  • Applied Physics Letters 30, no. 9: 468–470.
LanguageEnglish
Peer reviewedYes
NPARC number23002897
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Record created2018-03-21
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