Decrease of transit-time broadening of spectral resonances by optical pumping of atoms

2018/02/02 by А. Ч. Измайлов, Izmailov, Azad Ch.
Chemistry · Engineering · Physics and Astronomy · #Atomic Physics (physics.atom-ph) #FOS: Physical sciences #Laser Design and Applications #Optics (physics.optics) #Quantum optics and atomic interactions #Spectroscopy and Laser Applications

paper · pdf · doi:10.48550/arxiv.1802.00808

openalex publication_date 2018/02/02 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We propose the new method of essential decrease of transit-time broadening of Doppler-free absorption resonances on transitions between long-lived quantum levels of atoms (or molecules) of a rarefied gas medium. This method is based on preliminary optical pumping of the ground term of atoms (molecules) by additional radiation which is spatially separated from the recording light beam. The proposed method may be applied in atomic (molecular) spectroscopy of ultra high resolution and also in frequency and time standards.

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