THE OPTICAL STARK EFFECT OF THE EXCITON DUE TO DYNAMICAL COUPLING BETWEEN QUANTIZED STATES OF THE ELECTRON AND HOLE IN QUANTUM WELLS

1993 ◽  
Vol 07 (19) ◽  
pp. 3405-3413 ◽  
Author(s):  
NGUYEN HONG QUANG

Optical Stark effect of the exciton in quantum wells is treated by taking into account not only dynamical coupling by pump field between quantized states of the electron in the conduction band but also the coupling between quantized states of the hole in the valence band. The changes in the calculated one-photon absorption probability by exciton depend essentially on pump field detuning.

2020 ◽  
Vol 11 (3) ◽  
pp. 716-723 ◽  
Author(s):  
Andrew H. Proppe ◽  
Grant W. Walters ◽  
Abdullah Y. Alsalloum ◽  
Ayan A. Zhumekenov ◽  
Edoardo Mosconi ◽  
...  

1993 ◽  
Vol 48 (11) ◽  
pp. 8102-8118 ◽  
Author(s):  
Mitsuru Sugawara ◽  
Niroh Okazaki ◽  
Takuya Fujii ◽  
Susumu Yamazaki

2004 ◽  
Vol 69 (8) ◽  
Author(s):  
G. Papageorgiou ◽  
R. Chari ◽  
G. Brown ◽  
A. K. Kar ◽  
C. Bradford ◽  
...  

1989 ◽  
Vol 44 (4-6) ◽  
pp. 233-246 ◽  
Author(s):  
D.S. Chemla ◽  
W.H. Knox ◽  
D.A.B. Miller ◽  
S. Schmitt-Rink ◽  
J.B. Stark ◽  
...  

2016 ◽  
Vol 2 (6) ◽  
pp. e1600477 ◽  
Author(s):  
David Giovanni ◽  
Wee Kiang Chong ◽  
Herlina Arianita Dewi ◽  
Krishnamoorthy Thirumal ◽  
Ishita Neogi ◽  
...  

Ultrafast spin manipulation for opto–spin logic applications requires material systems that have strong spin-selective light-matter interaction. Conventional inorganic semiconductor nanostructures [for example, epitaxial II to VI quantum dots and III to V multiple quantum wells (MQWs)] are considered forerunners but encounter challenges such as lattice matching and cryogenic cooling requirements. Two-dimensional halide perovskite semiconductors, combining intrinsic tunable MQW structures and large oscillator strengths with facile solution processability, can offer breakthroughs in this area. We demonstrate novel room-temperature, strong ultrafast spin-selective optical Stark effect in solution-processed (C6H4FC2H4NH3)2PbI4 perovskite thin films. Exciton spin states are selectively tuned by ~6.3 meV using circularly polarized optical pulses without any external photonic cavity (that is, corresponding to a Rabi energy of ~55 meV and equivalent to applying a 70 T magnetic field), which is much larger than any conventional system. The facile halide and organic replacement in these perovskites affords control of the dielectric confinement and thus presents a straightforward strategy for tuning light-matter coupling strength.


1987 ◽  
Vol 51 (8) ◽  
pp. 575-577 ◽  
Author(s):  
Jeremy Allam ◽  
Fabio Beltram ◽  
Federico Capasso ◽  
Alfred Y. Cho

2001 ◽  
Vol 693 ◽  
Author(s):  
A. Hangleiter ◽  
S. Lahmann ◽  
C. Netzel ◽  
U. Rossow ◽  
P. R. C. Kent ◽  
...  

AbstractWe show that the strong bowing of the bandgap of GaInN, which is primarily due to bowing of the valence band edge, translates into a strongly composition dependent ratio of the conduction band offset to the valence band offset with respect to GaN. For common In mole fractions of 0-20 % this leads to a reversal of the band offset ratio and to very weak electron con nement. This theoretical picture is veri ed by comparing results of time-resolved spectroscopy on asymmetric AlGaN/GaInN/GaN and AlGaN/GaN/AlGaN quantum wells. Since electron con nement is much stronger for GaN/AlGaN wells than for GaInN/GaN wells, the effect of asymmetry is very weak for the former and fairly strong for the latter.


1992 ◽  
Vol 173 (1) ◽  
pp. 83-89 ◽  
Author(s):  
D. Fröhlich ◽  
S. Spitzer ◽  
B. Uebbing ◽  
R. Zimmermann

Sign in / Sign up

Export Citation Format

Share Document