scholarly journals Determination of sign during phase correction of sign-variable modulation spectra of intersubband light absorption in GaAs/AlGaAs quantum wells

2019 ◽  
Vol 1236 ◽  
pp. 012021
Author(s):  
R V Ustimenko ◽  
M Ya Vinnichenko ◽  
D A Pashnev ◽  
D B Hayrapetyan ◽  
D A Firsov
Keyword(s):  
Quantum Wells ◽  
Light Absorption ◽  
Phase Correction ◽  
Variable Modulation

Determination of the basic parameters of pseudomorphic GaInAs quantum wells by means of simultaneous transport and optical investigations

1994 ◽  
Vol 37 (4-6) ◽  
pp. 665-667 ◽  
Author(s):  
E. Litwin-Staszewska ◽  
F. Kobbi ◽  
M. Kamal-Saadi ◽  
D. Dur ◽  
C. Skierbiszewski ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Basic Parameters

A Purely Spectroscopic Technique for Determining Energy Band Offsets in Quantum Wells

1991 ◽  
Vol 240 ◽  
Author(s):  
Emil S. Koteies
Keyword(s):  
Quantum Wells ◽  
Valence Band ◽  
Accurate Determination ◽  
Energy Difference ◽  
Spectroscopic Technique ◽  
Band Offsets ◽  
Band Energy ◽  
Semiconductor Quantum Wells ◽  
Sensitive Function

ABSTRACTWe have developed a novel experimental technique for accurately determining band offsets in semiconductor quantum wells (QW). It is based on the fact that the ground state heavy- hole (HH) band energy is more sensitive to the depth of the valence band well than the light-hole (LH) band energy. Further, it is well known that as a function of the well width, Lz, the energy difference between the LH and HH excitons in a lattice matched, unstrained QW system experiences a maximum. Calculations show that the position, and more importantly, the magnitude of this maximum is a sensitive function of the valence band offset, Qy, which determines the depth of the valence band well. By fitting experimentally measured LH-HH splittings as a function of Lz, an accurate determination of band offsets can be derived. We further reduce the experimental uncertainty by plotting LH-HH as a function of HH energy (which is a function of Lz ) rather than Lz itself, since then all of the relevant parameters can be precisely determined from absorption spectroscopy alone. Using this technique, we have derived the conduction band offsets for several material systems and, where a consensus has developed, have obtained values in good agreement with other determinations.

Determination of unscreened exciton states in polar ZnO/(Mg,Zn)O quantum wells with strong quantum-confined Stark effect

2013 ◽  
Vol 88 (4) ◽  
Author(s):  
Marko Stölzel ◽  
Alexander Müller ◽  
Gabriele Benndorf ◽  
Matthias Brandt ◽  
Michael Lorenz ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Stark Effect ◽  
Quantum Confined Stark Effect ◽  
Quantum Confined

Determination of the interdiffusion of Al and Ga in undoped (Al,Ga)As/GaAs quantum wells

1986 ◽  
Vol 49 (9) ◽  
pp. 519-521 ◽  
Author(s):  
T. E. Schlesinger ◽  
T. Kuech
Keyword(s):  
Quantum Wells

Determination of the valence-band offset of GaAs-(Ga,In)P quantum wells by photoreflectance spectroscopy

1992 ◽  
Vol 46 (3) ◽  
pp. 1886-1888 ◽  
Author(s):  
Gérald Arnaud ◽  
Philippe Boring ◽  
Bernard Gil ◽  
Jean-Charles Garcia ◽  
Jean-Pierre Landesman ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Valence Band ◽  
Band Offset ◽  
Valence Band Offset ◽  
Photoreflectance Spectroscopy

scholarly journals Dynamics of the Intraband Light Absorption in Selectively Doped GaAs/AlGaAs Quantum Wells

2005 ◽  
Vol 107 (2) ◽  
pp. 429-434
Author(s):  
L.E. Vorobjev ◽  
V.Yu. Panevin ◽  
N.K. Fedosov ◽  
D.A. Firsov ◽  
V.A. Shalygin ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Light Absorption

Experimental determination of the coefficient of light absorption and conductivity of shock-compressed ionic crystals

1969 ◽  
Vol 5 (4) ◽  
pp. 398-400 ◽  
Author(s):  
G. A. Kirillov ◽  
M. V. Sinitsyn ◽  
F. V. Grigor'ev ◽  
S. B. Kormer ◽  
V. A. Samylin ◽  
...  
Keyword(s):  
Experimental Determination ◽  
Light Absorption ◽  
Ionic Crystals
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