Electrorefraction beyond the excitonic resonance in GaAs/AlGaAs multiple quantum well structure in the Franz-Keldysh geometry
Year: 2020
Type: article
Abstract: The Kramers-Kronig relations were used to estimate electrorefractivity near the edge of the exciton absorption peak of GaAs/AlGaAs photorefractive quantum well (PMQW) structure working in the Franz-Keldysh geometry. It was shown that for both TE and TM polarizations the change of the refractive index under an applied electric field is at least an order of magnitude greater than in bulk semi-insulating GaAs due to the classical Franz-Keldysh effect. Full Text: PDF ReferencesD.D. Nolte, M. R. Melloch in: Photorefractive effects and Materials, ed. by D. D. Nolte (Kluwer, Dordrecht 1995). CrossRef T. E.Van Eck, L. M. Walpita, W.S.C. Chang, H. H. Wieder, "Franz–Keldysh electrorefraction and electroabsorption in bulk InP and GaAs", Appl. Phys. Lett. 48, 451 (1986). CrossRef P.K. Basu, Theory of Optical Processes in Semiconductors, (Oxford University Press, 2003) ch. 7. CrossRef A Partovi. E.M. Garmire, "Band‐edge photorefractivity in semiconductors: Theory and experiment", J. Appl. Phys. 69, 6885 (1991). CrossRef J. S. Weiner, D. A. B. Miller, D. S. Chemla, et. al. "Strong polarization‐sensitive electroabsorption in GaAs/AlGaAs quantum well waveguides", Appl. Phys. Lett. 47, 1148 (1985). CrossRef D. S. Chemla, D. A. B. Miller, "Room-temperature excitonic nonlinear-optical effects in semiconductor quantum-well structures", JOSA A, 2 1155, (1985). CrossRef S.L. Chuang, Physics of Photonic Devices (2-nd ed. New Jersey, Wiley & Sons 2009), ch. 14. DirectLink E. Miśkiewicz, A. Ziółkowski, M. Wichtowski, E. Weinert - Rączka, "Thermally induced changes of the electro-optical properties of semi-insulating GaAs/AlGaAs multiple quantum well structures", Opt. Mat. 89, 231 (2019). CrossRef E.Weinert-Rączka, R.Iwanow, "Asymetric directional coupler controlled by photorefractive grating", Acta Phys. Pol. A 95, 813 (1999). CrossRef
Source: Photonics Letters of Poland
Author: Marek Wichtowski
Institution: West Pomeranian University of Technology in Szczecin
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W3119442912