Electric-field-induced mid-infrared birefringence of the double quantum wells

3rd International School and Conference on Optoelectronics, Photonics, Engineering and Nanostructures (Saint Petersburg OPEN 2016)

Vinnichenko, M. Ya^1 ; Babich, V.M.^1 ; Balagula, R.M.^1 ; Sofronov, A.N.^1 ; Firsov, D.A.^1 ; Vorobjev, L.E.^1

Peter the Great St. Petersburg Polytechnic University, 29 Polytechnicheskaya str., St. Petersburg

195251, Russia^1

关键词: Absorption co-efficient;    Direct optical transmissions;    Double quantum well;    Electric field induced;    GaAs/AlGaAs quantum well;    Intersubband resonance;    Mid-infrared spectral range;    Refraction index;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/741/1/012124/pdf
DOI  :  10.1088/1742-6596/741/1/012124

来源: IOP

【 摘 要 】

Birefringence in double tunnel-coupled GaAs/AlGaAs quantum wells was studied in the mid-infrared spectral range close to the intersubband resonance. Phase-sensitive optical studies allowed us to deduce simultaneously the differences of the refraction index and absorption coefficient for the normal waves polarized in the plane of the structure and along the structure growth, including electric-field induced effects. The optical absorption data are in a good agreement with the direct optical transmission measurements.