Model Study of Inhomogeneous Line Broadening in Excitonic Spectra of Quantum Wells

• Authors: G. Astakhov , V. Kochereshko , V. Kosobukin , D. Yakovlev , T. Wojtowicz , G. Karczewski , J. Kossut , W. Ossau , G. Landwehr
• Languages of publication: EN

Abstracts

EN

An approach is proposed to estimate separately parameters of homogeneous and inhomogeneous broadenings from an optical reflection line of a quasi-2D exciton. A phenomenological model is proposed to take into account statistically an inhomogeneous broadening of the exciton resonant spectra. The concept is applied to study a modulation-doped heterostructures with a single quantum well CdTe/CdMgTe. From exciton reflection lines taken in a magnetic field the temperature-dependent homogeneous and inhomogeneous broadening parameters as well as the exciton radiative decay rate are measured.

Keywords

EN

78.20.Ci; 78.66.-w

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)
• 78.20.Ci: Optical constants (including refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 1998
• Volume: 94
• Issue: 2
• Pages: 235-239

Dates

published

1998-08

Contributors

author

G. Astakhov

• A.F. Ioffe Physico-Technical Institute, 194021, St. Petersburg, Russia

author

V. Kochereshko

• A.F. Ioffe Physico-Technical Institute, 194021, St. Petersburg, Russia

author

V. Kosobukin

• A.F. Ioffe Physico-Technical Institute, 194021, St. Petersburg, Russia

author

D. Yakovlev

• A.F. Ioffe Physico-Technical Institute, 194021, St. Petersburg, Russia

author

T. Wojtowicz

• Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warsaw, Poland

author

G. Karczewski

• Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warsaw, Poland

author

J. Kossut

• Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warsaw, Poland

author

W. Ossau

• Physikalisches Institut der Universität Würzburg, 97074, Würzburg, Germany

author

G. Landwehr

• Physikalisches Institut der Universität Würzburg, 97074, Würzburg, Germany

Identifiers

DOI

10.12693/APhysPolA.94.235