Transient effects of pump-probe optical response in intersubband transitions of semiconductor quantum wells

2012 ◽  
Vol 112 (7) ◽  
pp. 073117 ◽  
Author(s):  
Spyridon G. Kosionis ◽  
Andreas F. Terzis ◽  
Emmanuel Paspalakis
Keyword(s):  
Quantum Wells ◽  
Optical Response ◽  
Transient Effects ◽  
Intersubband Transitions ◽  
Pump Probe ◽  
Semiconductor Quantum Wells

THE INTERSUBBAND TRANSITIONS AND BINDING ENERGY OF SHALLOW DONOR IMPURITIES IN DIFFERENT SHAPED QUANTUM WELLS UNDER THE MAGNETIC FIELD

2011 ◽  
Vol 25 (32) ◽  
pp. 2451-2459 ◽  
Author(s):  
U. YESILGUL ◽  
F. UNGAN ◽  
E. KASAPOGLU ◽  
H. SARI ◽  
I. SÖKMEN
Keyword(s):  
Magnetic Field ◽  
Binding Energy ◽  
Field Strength ◽  
Variational Method ◽  
Quantum Wells ◽  
Shallow Donor ◽  
Intersubband Transitions ◽  
Mass Approximation ◽  
Semiconductor Quantum Wells ◽  
The Magnetic Field

The intersubband transitions and impurity binding energy in differently shaped semiconductor quantum wells under a magnetic field are calculated using a variational method within the effective mass approximation. Our calculations have revealed the dependence of the intersubband transitions and impurity binding energy on the magnetic field strength and the shape of the quantum wells.

TWO-COLOR COHERENT CONTROL OF OPTICAL BISTABILITY IN ASYMMETRIC SEMICONDUCTOR QUANTUM WELLS

2008 ◽  
Vol 22 (06) ◽  
pp. 393-404 ◽  
Author(s):  
JIA-HUA LI ◽  
XIANG-YING HAO
Keyword(s):  
Quantum Wells ◽  
Optical Switching ◽  
Optical Bistability ◽  
Coherent Control ◽  
Second Harmonic ◽  
Intersubband Transitions ◽  
Fundamental Field ◽  
Harmonic Field ◽  
Semiconductor Quantum Wells ◽  
Semiconductor Quantum Well

We investigate optical bistability in intersubband transitions of an asymmetric semiconductor quantum well structure that has equidistant transitions between three subbands of the system and is placed in a unidirectional cavity. The system is simultaneously coupled by a fundamental field and its second harmonic. The second harmonic field acts as a control field and significantly influences the optical bistability. In addition, the two-color coherent control of optical bistability by the relative phase of the fundamental and the second harmonic fields is shown. The influence of the electronic cooperation parameter on the OB behavior is also discussed. This investigation may be used for optimizing and controlling the optical switching process in the SQW solid-state system, which is much more practical than that in the atomic system because of its flexible design and the controllable interference strength.

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