Effects of an intense, high-frequency laser field on the intersubband transitions and impurity binding energy in semiconductor quantum wells

2010 ◽  
Vol 374 (29) ◽  
pp. 2980-2984 ◽  
Author(s):  
F. Ungan ◽  
U. Yesilgul ◽  
S. Şakiroğlu ◽  
E. Kasapoglu ◽  
H. Sari ◽  
...  
Keyword(s):  
Binding Energy ◽  
Quantum Wells ◽  
High Frequency ◽  
Laser Field ◽  
Intersubband Transitions ◽  
Semiconductor Quantum Wells ◽  
Frequency Laser

Effects of an intense, high-frequency laser field on the binding energy of excitons confined in a GaInNAs/GaAs quantum well

2012 ◽  
Vol 407 (3) ◽  
pp. 528-532 ◽  
Author(s):  
U. Yesilgul ◽  
F. Ungan ◽  
E. Kasapoglu ◽  
H. Sarı ◽  
I. Sökmen
Keyword(s):  
Binding Energy ◽  
Quantum Well ◽  
High Frequency ◽  
Laser Field ◽  
Frequency Laser

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.

scholarly journals Circular Rydberg states of helium atoms or helium-like ions in a high-frequency laser field

Open Physics ◽  
2021 ◽  
Vol 19 (1) ◽  
pp. 11-17
Author(s):  
Nikolay Kryukov ◽  
Eugene Oks
Keyword(s):  
High Frequency ◽  
Laser Field ◽  
Nuclear Charge ◽  
Rydberg States ◽  
Orbital Plane ◽  
Precession Frequency ◽  
Nonmonotonic Dependence ◽  
Absolute Value ◽  
Rydberg Electron ◽  
Frequency Laser

Abstract In the literature, there were studies of Rydberg states of hydrogenic atoms/ions in a high-frequency laser field. It was shown that the motion of the Rydberg electron is analogous to the motion of a satellite around an oblate planet (for a linearly polarized laser field) or around a (fictitious) prolate planet (for a circularly polarized laser field): it exhibits two kinds of precession – one of them is the precession within the orbital plane and another one is the precession of the orbital plane. In this study, we study a helium atom or a helium-like ion with one of the two electrons in a Rydberg state, the system being under a high-frequency laser field. For obtaining analytical results, we use the generalized method of the effective potentials. We find two primary effects of the high-frequency laser field on circular Rydberg states. The first effect is the precession of the orbital plane of the Rydberg electron. We calculate analytically the precession frequency and show that it differs from the case of a hydrogenic atom/ion. In the radiation spectrum, this precession would manifest as satellites separated from the spectral line at the Kepler frequency by multiples of the precession frequency. The second effect is a shift of the energy of the Rydberg electron, also calculated analytically. We find that the absolute value of the shift increases monotonically as the unperturbed binding energy of the Rydberg electron increases. We also find that the shift has a nonmonotonic dependence on the nuclear charge Z: as Z increases, the absolute value of the shift first increases, then reaches a maximum, and then decreases. The nonmonotonic dependence of the laser field-caused energy shift on the nuclear charge is a counterintuitive result.

Effect of the High-Frequency Laser Radiation on the Nonlinear Optical Properties of n-Type Double δ-Doped GaAs Quantum Wells

2019 ◽  
Vol 19 (7) ◽  
pp. 4167-4171
Author(s):  
Fatih Ungan ◽  
Huseyin Sari ◽  
Esin Kasapoglu ◽  
Unal Yesilgul ◽  
Serpil Sakiroglu ◽  
...  
Keyword(s):  
Optical Properties ◽  
Laser Radiation ◽  
Quantum Wells ◽  
High Frequency ◽  
Nonlinear Optical ◽  
Nonlinear Optical Properties ◽  
Frequency Laser

Intense laser field effect on D2+ molecular complex localized in semiconductor quantum wells

2019 ◽  
Vol 730 ◽  
pp. 384-390 ◽  
Author(s):  
Y.A. Suaza ◽  
M.R. Fulla ◽  
D. Laroze ◽  
H.M. Baghramyan ◽  
J.H. Marin
Keyword(s):  
Quantum Wells ◽  
Molecular Complex ◽  
Laser Field ◽  
Field Effect ◽  
Intense Laser ◽  
Intense Laser Field ◽  
Semiconductor Quantum Wells
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