Enhanced refractive index without absorption via both coherent and incoherent fields in a semiconductor quantum well
Biqi Qian, Zhiping Wang, Tao Shui +1 more
We investigate the absorptive–dispersive properties of a weak probe field in a ladder-type semiconductor quantum well. It is found that the enhanced positive or negative refraction index without absorption can be easily obtained in this solid-state system. Our scheme may provide some new possibilities for technological applications in solid-state optical communication.
Laser Physics Letters•May 14, 2015•2 citations