Angular dependence of Dicke-narrowed electromagnetically induced transparency resonances

Journal Article · Wed Aug 15 04:00:00 EDT 2007 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.76.023813· OSTI ID:21016038

Shuker, M; Firstenberg, O; Ben-Kish, A; Ron, A ^[1]; Pugatch, R; Davidson, N ^[2]

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1. Department of Physics, Technion-Israel Institute of Technology, Haifa 32000 (Israel)
2. Department of Physics of Complex Systems, Weizmann Institute of Science, Rehovot 76100 (Israel)

Dicke narrowing is a phenomenon that dramatically reduces the Doppler width of spectral lines, due to frequent velocity-changing collisions. A similar phenomenon occurs for electromagnetically induced transparency (EIT) resonances, and facilitates ultranarrow spectral features in room-temperature vapor. We directly measure the Dicke-like narrowing by studying EIT line shapes as a function of the angle between the pump and probe beams. The measurements are in good agreement with an analytic theory with no fit parameters. The results show that Dicke narrowing can increase substantially the tolerance of hot-vapor EIT to angular deviations. We demonstrate the importance of this effect for applications such as imaging and spatial solitons using a single-shot imaging experiment, and discuss the implications for the feasibility of storing images in atomic vapor.

• OSTI ID: 21016038
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 2 Vol. 76; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COLLISIONS
DOPPLER BROADENING
ELECTROMAGNETIC FIELDS
FUNCTIONS
LINE NARROWING
OPACITY
OPTICAL PUMPING
RESONANCE
SOLITONS
TEMPERATURE RANGE 0273-0400 K
VAPORS