Observation of query pulse length dependent Ramsey interference in rubidium vapor using pulsed Raman excitation

G. S. Pati*, F. K. Fatemi, Selim M Shahriar

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

We report observation of query pulse length dependent Ramsey interference (QPLD-RI), using pulsed Raman excitation in rubidium vapor. This is observed when a long, attenuated query pulse is used during pulsed Raman excitation. We explain the physical mechanism behind the QPLDRI using a Bloch vector model. We also use numerical solutions to timedependent density matrix equations to simulate this interference effect, showing qualitative agreement with experimental results. Presence of such interference could create a potential source of error in a vapor cell Raman clock constructed using frequency-domain Ramsey interference (FDRI).

Original languageEnglish (US)
Pages (from-to)22388-22401
Number of pages14
JournalOptics Express
Volume19
Issue number23
DOIs
StatePublished - Nov 7 2011

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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