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physics.optics2013★ 2 cited
Superluminal light propagation in a bi-chromatically Raman-driven and Doppler-broadened N-type 4-level atomic system
Bakht Amin Bacha, Fazal Ghafoor, Iftikhar Ahmad
We investigate the behavior of fast light pulse propagation in an N-type Doppler-broadened 4-level atomic system using double Raman gain processes. This system displays novel and i…
physics.optics2013
Hole-burning in an Autler-Townes doublet and in superluminal (subluminal) Electromagnetically induced transparency of a light pulse via a joint nonlinear coherent Kerr effect and Doppler broadening
Bakhtt A Bacha, Fazal Ghafoor, Iftikhar Ahmad
We investigate the behavior of light pulse propagation in a 4-level double Lambda atomic system under condition of electromagnetically induced transparency. The Fano type interfere…