Access to long-term optical memories using photon echoes retrieved from electron spins in semiconductor quantum wells

2016 ◽  
Author(s):  
S. V. Poltavtsev ◽  
L. Langer ◽  
I. A. Yugova ◽  
M. Salewski ◽  
Y. V. Kapitonov ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Electron Spins ◽  
Photon Echoes ◽  
Semiconductor Quantum Wells ◽  
Optical Memories

Optical excitation and control of electron spins in semiconductor quantum wells

2010 ◽  
Vol 42 (6) ◽  
pp. 1803-1819 ◽  
Author(s):  
Zhigang Chen ◽  
Samuel G. Carter ◽  
Rudolf Bratschitsch ◽  
Steven T. Cundiff
Keyword(s):  
Quantum Wells ◽  
Optical Excitation ◽  
Electron Spins ◽  
Semiconductor Quantum Wells ◽  
And Control

Access to long-term optical memories using photon echoes retrieved from semiconductor spins

2014 ◽  
Vol 8 (11) ◽  
pp. 851-857 ◽  
Author(s):  
L. Langer ◽  
S. V. Poltavtsev ◽  
I. A. Yugova ◽  
M. Salewski ◽  
D. R. Yakovlev ◽  
...  
Keyword(s):  
Photon Echoes ◽  
Optical Memories

Microcavities

2017 ◽  
Author(s):  
Alexey V. Kavokin ◽  
Jeremy J. Baumberg ◽  
Guillaume Malpuech ◽  
Fabrice P. Laussy
Keyword(s):  
Quantum Wells ◽  
Strong Light ◽  
Fundamental Physics ◽  
Postgraduate Students ◽  
Optical Cavities ◽  
Semiconductor Quantum Wells ◽  
Exciton Polaritons ◽  
Different Types ◽  
Potential Applications ◽  
Experimental Findings

Both rich fundamental physics of microcavities and their intriguing potential applications are addressed in this book, oriented to undergraduate and postgraduate students as well as to physicists and engineers. We describe the essential steps of development of the physics of microcavities in their chronological order. We show how different types of structures combining optical and electronic confinement have come into play and were used to realize first weak and later strong light–matter coupling regimes. We discuss photonic crystals, microspheres, pillars and other types of artificial optical cavities with embedded semiconductor quantum wells, wires and dots. We present the most striking experimental findings of the recent two decades in the optics of semiconductor quantum structures. We address the fundamental physics and applications of superposition light-matter quasiparticles: exciton-polaritons and describe the most essential phenomena of modern Polaritonics: Physics of the Liquid Light. The book is intended as a working manual for advanced or graduate students and new researchers in the field.

The long-term relaxation and build-up transient of photoconductivity in Si1-xGex/Si quantum wells

1995 ◽  
Vol 7 (23) ◽  
pp. 4525-4532 ◽  
Author(s):  
L H Chu ◽  
Y F Chen ◽  
D C Chang ◽  
C Y Chang
Keyword(s):  
Quantum Wells

Lateral-superlattice effects in very narrow strained semiconductor quantum wells grown on vicinal surfaces

1993 ◽  
Vol 47 (20) ◽  
pp. 13880-13883 ◽  
Author(s):  
F. Meseguer ◽  
F. Agulló-Rueda ◽  
C. López ◽  
J. Sánchez-Dehesa ◽  
J. Massies ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Vicinal Surfaces ◽  
Semiconductor Quantum Wells

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.

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