FARAGAI, I A and PEREIRA, Mauro (2014). THz valence band polaritons and antipolaritons. In: RAZEGHI, Manijeh, BARANOV, Alexei N, ZAVADA, John M and PAVLIDIS, Dimitris, (eds.) Proceedings of SPIE : Terahertz Emitters, Receivers, and Applications V. Society of Photo-Optical Instrumentation Engineers, 91990H.Full text not available from this repository.
The coupling of THz and intersubband excitations leads to THz polaritons and antipolaritons and has great potential for device applications. In this paper, based on the dielectric function formalism, we investigate the relevance of controlling cavity resonance and dephasing in the THz polariton and antipolariton dispersions. The input optical dielectric constant stems from numerically exact nonequilibrium many body solutions which are adjusted to a simplified nonlinear dielectric susceptibility. The resulting expression is inserted in the wave equation to describe the coupling of TE- polarized THz radiation and intervalence band transitions in GaAs/Al0.3Ga0.7As multiple quantum well structures with various resonance conditions.
|Item Type:||Book Section|
|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:||13 Jan 2015 10:36|
|Last Modified:||13 Jan 2015 10:36|
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