Luminescence efficiency of near‐surface quantum wells before and after ion‐gun hydrogenation

1993 ◽  
Vol 62 (21) ◽  
pp. 2697-2699 ◽  
Author(s):  
Ying‐Lan Chang ◽  
I‐Hsing Tan ◽  
Yong‐Hang Zhang ◽  
James Merz ◽  
Evelyn Hu ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Near Surface ◽  
Luminescence Efficiency ◽  
Before And After

scholarly journals Contribution of top barrier materials to high mobility in near-surface InAs quantum wells grown on GaSb(001)

2019 ◽  
Vol 3 (1) ◽  
Author(s):  
Joon Sue Lee ◽  
Borzoyeh Shojaei ◽  
Mihir Pendharkar ◽  
Mayer Feldman ◽  
Kunal Mukherjee ◽  
...  
Keyword(s):  
Quantum Wells ◽  
High Mobility ◽  
Near Surface ◽  
Barrier Materials

45° REFLECTOMETRY OF SEMICONDUCTOR QUANTUM WELLS

2001 ◽  
Vol 15 (17n19) ◽  
pp. 683-687
Author(s):  
A. SILVA-CASTILLO ◽  
F. PEREZ-RODRIGUEZ
Keyword(s):  
Quantum Well ◽  
Quantum Wells ◽  
Growth Direction ◽  
Angle Of Incidence ◽  
Near Surface ◽  
New Information ◽  
Difference Formula ◽  
Exciton Polaritons ◽  
The Difference ◽  
First Time

We have applied the 45° reflectometry for the first time to study exciton-polaritons in quantum wells. The 45° reflectometry is a new polarization-modulation technique, which is based on the measurement of the difference [Formula: see text] between the p-polarization reflectivity (Rp) and the squared s-polarization reflectivity [Formula: see text] at an angle of incidence of 45°. We show that [Formula: see text] spectra may provide qualitatively new information on the exciton-polariton modes in a quantum well. These optical spectra turn out to be very sensitive to the zeros of the dielectric function along the quantum-well growth direction and, therefore, allow to identify the resonances associated with the Z exciton-polariton mode. We demonstrate that 45° reflectometry could be a powerful tool for studying Z exciton-polariton modes in near-surface quantum wells, which are difficult to observe in simple spectra of reflectivity Rp

Simulation of Structural Transformations in Modified Near-Surface Layers of Crystals

2019 ◽  
Vol 970 ◽  
pp. 276-282
Author(s):  
Yury Borodin ◽  
Anastasia Mantina
Keyword(s):  
Quantum Wells ◽  
Riemannian Space ◽  
Structural Transformations ◽  
Thin Layers ◽  
Surface Layers ◽  
Near Surface ◽  
Internal Geometry ◽  
Structure Ordering

Superlattice formation in thin layers of oxidizing crystals and the effect of near-surface proton saturation on structure ordering, formation and periodical distribution of quantum wells have been discussed. The paper shows, it is necessary to develop non-Euclidean approach to the crystal’s internal geometry and consider, in consecutive order, the question of the four-dimentional Riemannian space into three-dimentional Eucliden space interpretation (RE interpretation).

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