Publications associées à Quantum wire

Role of the exchange of carriers in elastic exciton-exciton scattering in quantum wells

Vincenzo Savona, Paolo Schwendimann, Cristiano Ciuti

A study of the elastic exciton-exciton Coulomb scattering in a semiconductor quantum well is presented, including the interexciton exchange of carriers and the spin degrees of freedom. The theoretical results show that electron-electron and hole-hole excha ...

1998

Coulomb correlation and band gap renormalization at high carrier densities in quantum wires

Elyahou Kapon, Benoît Marie Joseph Deveaud, Daniel Oberli

We have studied the luminescence of narrow quantum wires at photoexcitation densities of up to similar to 3 x 10(6) cm(-1). We show that even at these densities, which are well above the expected Mott density of 8 x 10(5) cm(-1), excitonic recombination do ...

1997

Polarization anisotropy and valence band mixing in semiconductor quantum wires

Elyahou Kapon, Marc-André Dupertuis, Daniel Oberli

We have studied the effect of valence band mixing on the optical properties of semiconductor quantum wires by analyzing the luminescence polarization. Large polarization anisotropy is observed and directly compared to the effects predicted by a k . p model ...

1997

Carrier transfer and capture into quantum wire arrays grown on V-groove substrates

Elyahou Kapon, Benoît Marie Joseph Deveaud, Franz-Karl Reinhart, Daniel Oberli

The mechanisms of carrier transfer from barrier regions (superlattices, side-wall and vertical quantum wells) into arrays of quantum wires are investigated by time-resolved photoluminescence. The wires are grown by different techniques on V-groove substrat ...

1996

Interdiffusion Induced Enhancement of One-Dimensional Level Separation in Quantum Wires

Jean-François Carlin, Jean-Michel Sallese

We have calculated the effect of alloy interdiffusion on the one-dimensional energy confinement of (Al,Ga)As/GaAs crescent shaped quantum wire structures. We show that the energy splitting between excited states may be greatly enhanced by the interdiffusio ...

1995

Double selective inversion in NMR and multiple quantum effects in coupled spin systems

David Lyndon Emsley, Geoffrey Bodenhausen

Difficulties are described which are encountered in NMR spectroscopy when attempting to invert simultaneously several multiplets that comprise transitions which share common energy levels. These problems turn out to be due to the undesirable excitation of ...

1990

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Quantum wire

Role of the exchange of carriers in elastic exciton-exciton scattering in quantum wells

Coulomb correlation and band gap renormalization at high carrier densities in quantum wires

Polarization anisotropy and valence band mixing in semiconductor quantum wires

Carrier transfer and capture into quantum wire arrays grown on V-groove substrates

Resonant Raman scattering from phonons in GaAs/(GaAs)(m)(AlAs)(n) quantum wire structures

Interdiffusion Induced Enhancement of One-Dimensional Level Separation in Quantum Wires

Double selective inversion in NMR and multiple quantum effects in coupled spin systems

Graph Chatbot

Chattez avec Graph Search

Coulomb correlation and band gap renormalization at high carrier densities in quantum wires

Carrier transfer and capture into quantum wire arrays grown on V-groove substrates

Interdiffusion Induced Enhancement of One-Dimensional Level Separation in Quantum Wires

Double selective inversion in NMR and multiple quantum effects in coupled spin systems

Polarization anisotropy and valence band mixing in semiconductor quantum wires

Resonant Raman scattering from phonons in GaAs/(GaAs)(m)(AlAs)(n) quantum wire structures