Transition from slow and frozen to superluminal and backward light through loss or gain in dispersion-engineered waveguides
Citation
White, TP & Sukhorukov, AA, 2012, 'Transition from slow and frozen to superluminal and backward light through loss or gain in dispersion-engineered waveguides', Phys. Rev. A. vol. 85, no. 4, pp. 043819.