Effect of buffer gas on an electromagnetically induced transparency in a ladder system using thermal rubidium vapor

Journal Article · Fri Oct 15 04:00:00 EDT 2010 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.82.045806· OSTI ID:21452629

Sargsyan, Armen; Sarkisyan, David; Krohn, Ulrich; Keaveney, James; Adams, Charles ^[1]

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1. Institute for Physical Research, National Academy of Sciences, Ashtarak 2 (Armenia)

We report on the observation of electromagnetically induced transparency in a ladder system in the presence of a buffer gas. In particular, we study the 5S{sub 1/2}-5P{sub 3/2}-5D{sub 5/2} transition in thermal rubidium vapor with a neon buffer gas at a pressure of 6 Torr. In contrast to the line-narrowing effect of buffer gas on {Lambda} systems, we show that the presence of the buffer gas leads to an additional broadening of (34{+-}5) MHz, which suggests a cross section for Rb(5D{sub 5/2})-Ne of {sigma}{sub k}{sup (D)}=(23{+-}4)x10{sup -19} m{sup 2}. However, in the limit where the coupling Rabi frequency is larger than the collisional dephasing, a strong transparency feature can still be observed.

• OSTI ID: 21452629
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 4 Vol. 82; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ALKALI METALS
ATOM COLLISIONS
COLLISIONS
COUPLING
CROSS SECTIONS
D STATES
ELECTROMAGNETISM
ELEMENTS
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
FLUIDS
FREQUENCY RANGE
GASES
LINE NARROWING
MAGNETISM
METALS
MHZ RANGE
NEON
NONMETALS
OPACITY
OPTICAL PROPERTIES
P STATES
PHYSICAL PROPERTIES
RARE GASES
RUBIDIUM
S STATES
VAPORS