45 citations · 146 across the 10 of their papers we have counts for
8 papers · 1 filter
Phase-sensitive amplification via coherent population oscillations in metastable helium at room temperature
J. Lugani, C. Banerjee, M-A. Maynard +5
We report our experimental results on phase-sensitive amplification (PSA) in non-degenerate signal-idler configuration using ultra-narrow coherent population oscillations in metast…
Observation and measurement of an extra phase shift created by optically detuned light storage in metastable helium
M. -A. Maynard, T. Labidi, M. Mukhtar +4
Electromagnetically induced transparency (EIT) in metastable helium at room temperature is experimentally shown to exhibit light storage capabilities for intermediate values of the…
Interacting double dark resonances in a hot atomic vapor of helium
S. Kumar, T. Lauprêtre, R. Ghosh +2
We experimentally and theoretically study two different tripod configurations using metastable helium (He*), with the probe field polarization perpendicular and parallel to the…
Observation of Electromagnetically Induced Transparency and Slow Light in the Dark State - Bright State Basis of CPT
T. Lauprêtre, J. Ruggiero, R. Ghosh +2
Electromagnetically induced transparency (EIT) is observed in a three-level system composed of an excited state and two coherent superpositions of the two ground-state levels. This…
Realistic theory of electromagnetically-induced transparency and slow light in a hot vapor of atoms undergoing collisions
Joyee Ghosh, R. Ghosh, F. Goldfarb +2
We present a realistic theoretical treatment of a three-level system in a hot atomic vapor interacting with a coupling and a probe field of arbitrary strengths, leading to elec…
Functional integral treatment of some quantum nondemolition systems
Subhashish Banerjee, R. Ghosh
In the scheme of a quantum nondemolition (QND) measurement, an observable is measured without perturbing its evolution. In the context of studies of decoherence in quantum computin…