FARAGAI, Inuwa A and PEREIRA, Mauro (2014). THz intervalence band antipolaritons. Journal of Physics: Conference Series, 526 (1), 012006.
Pereira_THz_intervalence_band.pdf - Published Version
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THz polaritons and antipolaritons have strong potential for device applications and are a challenging field of fundamental studies. In this paper, we start from a numerically exact nonequilibrium many body solutions and adjust it to a simplified nonlinear dielectric constant approach to the optical susceptibility. The resulting expression is inserted in the wave equation to describe the coupling of TE-polarized THz radiation with an intervalence band transition in GaAs/Al0.3Ga0.7As multiple quantum wells embedded in microcavities. The energy dispersions relations leading to THz polaritons are investigated. Here we focus on the impact of dephasing and scattering processes for different structures and excitation conditions in an inverted medium leading to antipolaritons.
|Research Institute, Centre or Group:||Materials and Engineering Research Institute > Thin Films Research Centre > Electronic Materials and Sensors Research Group|
|Depositing User:||Hilary Ridgway|
|Date Deposited:||25 Sep 2014 11:11|
|Last Modified:||30 Aug 2015 10:22|
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