Publications de Qing Zhu | EPFL Graph Search

Developmental Prosopagnosia In A Patient With Hypoplasia Of The Vermis Cerebelli

2012

High-power optically-pumped VECSELs emitting in the 1310-nm and 1550-nm wavebands

Elyahou Kapon, Nicolas Volet, Alexandru Mereuta, Vladimir Iakovlev, Alexei Sirbu, Andrei Caliman, Qing Zhu

1300-nm, 1550-nm and 1480-nm wavelength, optically-pumped VECSELs based on wafer-fused InAlGaAs/InPAlGaAs/GaAs gain mirrors with intra-cavity diamond heat-spreaders demonstrate very low thermal impedance of 4 K/W. Maximum CW output of devices with5 groups ...

Spie-Int Soc Optical Engineering, Po Box 10, Bellingham, Wa 98227-0010 Usa2011

Pyramidal GaAs/AlzGa1-zAs quantum wire/dot systems with controlled heterostructure potential

Elyahou Kapon, Alok Rudra, Jean-Daniel Ganière, Qing Zhu

The structural and optical properties of controlled-heterostructure-potential, low-dimensional GaAs/AlGaAs nanostructures self-formed during organometallic chemical vapor deposition in tetrahedral pyramids etched in (111) B-GaAs substrates, are investigate ...

American Physical Society2010

Semiconductor vertical quantum structures self-formed in inverted pyramids

Qing Zhu

Semiconductor quantum wires (QWRs) and quantum dots (QDs) represent important classes of low-dimensional quantum nanostructures, useful for studies and applications of quasi one- and zero-dimensional systems. Recently, considerable efforts have been devote ...

EPFL2008

Quantum dot molecules realized with modulated quantum wire heterostructrues

Elyahou Kapon, Alok Rudra, Qing Zhu

2008

Mechanisms of Quantum Dot Energy Engineering by Metalorganic Vapor Phase Epitaxy on Patterned Nonplanar Substrates

Elyahou Kapon, Paolo De Los Rios, Benjamin Dwir, Klaus Leifer, Qing Zhu

A novel technique for tuning the strength of quantum confinement in site-controlled semiconductor quantum dots (QDs) is introduced and investigated theoretically and experimentally. The method makes use of controlled local growth rates during metalorganic ...

American Chemical Society2007

Transition from Two-Dimensional to Three-Dimensional Quantum Confinement in Semiconductor Quantum Wires/Quantum Dots

Elyahou Kapon, Qing Zhu

2007

Alloy Segregation, Quantum Confinement and Carrier Capture in Self-Ordered Pyramidal Quantum Wires

Elyahou Kapon, Marc-André Dupertuis, Klaus Leifer, Qing Zhu, Sascha Dalessi

2006