English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Experiments on the spectroscopy of the F\"orster resonance Rb(37P)+Rb(37P) ->Rb(37S)+Rb(38S) and microwave transitions nP -> n'S, n'D between Rydberg statesof cold Rb atoms in a magneto-optical trap have been performed. Under ordinaryconditions, all spectra exhibited a 2-3 MHz line width independently of theinteraction time of atoms with each other or with microwave radiation, althoughthe ultimate resonance width should be defined by the inverse interaction time.Analysis of the experimental conditions has shown that the main source of theline broadening was the inhomogeneous electric field of cold photoions appearedat the excitation of initial Rydberg nP states by broadband pulsed laserradiation. Using an additional pulse of the electric field, which rapidlyremoved the photoions after the laser pulse, lead to a substantial narrowing ofthe microwave and F\"orster resonances. An analysis of various sources of theline broadening in cold Rydberg atoms has been conducted.

Effect of photoions on the line shapes of the F\"orster resonance and microwave transitions in cold rubidium Rydberg atoms