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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 23 — Nov. 7, 2011
  • pp: 22388–22401

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

G. S. Pati, F. K. Fatemi, and M.S. Shahriar  »View Author Affiliations


Optics Express, Vol. 19, Issue 23, pp. 22388-22401 (2011)
http://dx.doi.org/10.1364/OE.19.022388


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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 QPLD-RI using a Bloch vector model. We also use numerical solutions to time-dependent 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).

© 2011 OSA

OCIS Codes
(270.1670) Quantum optics : Coherent optical effects
(300.6320) Spectroscopy : Spectroscopy, high-resolution

ToC Category:
Spectroscopy

History
Original Manuscript: August 22, 2011
Revised Manuscript: October 4, 2011
Manuscript Accepted: October 5, 2011
Published: October 24, 2011

Citation
G. S. Pati, F. K. Fatemi, and M.S. Shahriar, "Observation of query pulse length dependent Ramsey interference in rubidium vapor using pulsed Raman excitation," Opt. Express 19, 22388-22401 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-23-22388


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