Infrared Absorption of Multiple Quantum Wells: Bound to Continuum Transitions

• Authors: R. Oszwałdowski , W. Jaskólski
• Languages of publication: EN

Abstracts

EN

Optical transitions between bound and continuum states in multiple-heterojunction quantum structures are numerically investigated. In the conduction band energy range the absorption to continuum is studied within one-band effective-mass approximation. By changing the shape of quantum wells, we can tune the energy corresponding to absorption peak. We also show how the absorption is modified in the case of annealed structures. The inter-subband transitions in the energy range of valence band in Si/Si_{1-x}Ge_{x}/Si quantum well are described with the help of multiband Luttinger-Kohn Hamiltonian. Particular attention is paid to transitions to resonant states.

Keywords

EN

73.20.Dx; 78.66.-w; 85.30.Vw

Discipline

• 78.66.-w: Optical properties of specific thin films(for optical properties of low-dimensional, mesoscopic, and nanoscale materials, see 78.67.-n; for optical properties of surfaces, see 78.68.+m)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 1998
• Volume: 94
• Issue: 3
• Pages: 473-478

Dates

published

1998-09

Contributors

author

R. Oszwałdowski

• Institute of Physies, N. Copernicus University, Grudziądzka 5, 87-100 Toruń, Poland

author

W. Jaskólski

• Institute of Physies, N. Copernicus University, Grudziądzka 5, 87-100 Toruń, Poland

Identifiers

DOI

10.12693/APhysPolA.94.473