TY - GEN
T1 - Control of group velocity of light by phase-changing collisions
AU - Wilson-Gordon, A. D.
AU - Goren, C.
AU - Rosenbluh, M.
AU - Friedmann, H.
PY - 2005
Y1 - 2005
N2 - We discuss the influence of phase-changing collisions on the probe group velocity in Doppler-broadened, cycling, degenerate two-level systems, with Fe = Fg + 1 and Fg > 0, interacting with an intense pump laser and a weak probe laser. Two possible configurations are studied. In the first, the polarizations of the lasers are perpendicular, and the system exhibits electromagnetically induced absorption (EIA) due to transfer of coherence (TOC) [1]. In the second, the lasers have the same polarization, and the system exhibits EIA, at low pump intensity, due to transfer of population (TOP) between the Zeeman levels of the ground hyperfine state [2]. EIA-TOC is modeled by a four-level N system (Fig. 1a) [1] whereas EIA-TOP is modeled by a double two-level system (Fig.1b) [2].
AB - We discuss the influence of phase-changing collisions on the probe group velocity in Doppler-broadened, cycling, degenerate two-level systems, with Fe = Fg + 1 and Fg > 0, interacting with an intense pump laser and a weak probe laser. Two possible configurations are studied. In the first, the polarizations of the lasers are perpendicular, and the system exhibits electromagnetically induced absorption (EIA) due to transfer of coherence (TOC) [1]. In the second, the lasers have the same polarization, and the system exhibits EIA, at low pump intensity, due to transfer of population (TOP) between the Zeeman levels of the ground hyperfine state [2]. EIA-TOC is modeled by a four-level N system (Fig. 1a) [1] whereas EIA-TOP is modeled by a double two-level system (Fig.1b) [2].
UR - http://www.scopus.com/inward/record.url?scp=33847275235&partnerID=8YFLogxK
U2 - 10.1109/eqec.2005.1567262
DO - 10.1109/eqec.2005.1567262
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AN - SCOPUS:33847275235
SN - 0780389735
SN - 9780780389731
T3 - 2005 European Quantum Electronics Conference, EQEC '05
SP - 91
BT - 2005 European Quantum Electronics Conference, EQEC '05
T2 - 2005 European Quantum Electronics Conference, EQEC '05
Y2 - 12 June 2005 through 17 June 2005
ER -