Publications de Samuel Sonderegger

Exciton footprint of self-assembled AlGaAs quantum dots in core-shell nanowires

Samuel Sonderegger, Yannik Fontana, Pierre Michel Corfdir, Anna Fontcuberta i Morral, Martin Heiss, Eleonora Russo

Quantum-dot-in-nanowire systems constitute building blocks for advanced photonics and sensing applications. The electronic symmetry of the emitters impacts their function capabilities. Here we study the fine structure of gallium-rich quantum dots nested in ...

American Physical Society2014

Picosecond Time-Resolved Cathodoluminescence to Probe Exciton Dynamics in α-Plane (Al,Ga)N/GaN Quantum Wells

Benoît Marie Joseph Deveaud, Jean-Daniel Ganière, Samuel Sonderegger, Nicolas Grandjean, Laurent Balet, Pierre Michel Corfdir

Cambridge, Cambridge University Press2011

Exciton recombination dynamics in a-plane (Al,Ga)N/GaN quantum wells probed by picosecond photo and cathodoluminescence

Benoît Marie Joseph Deveaud, Jean-Daniel Ganière, Denis Martin, Samuel Sonderegger, Nicolas Grandjean, Laurent Balet, Tiankai Zhu, Pierre Michel Corfdir

We present a combined low-temperature time-resolved cathodoluminescence and photoluminescence study of exciton recombination mechanisms in a 3.8 nm thick a-plane (Al,Ga)N/GaN quantum well (QW). We observe the luminescence from QW excitons and from excitons ...

American Institute of Physics2010

Novel Picosecond Time-Resolved Cathodoluminescence to Probe Exciton Recombination Dynamics in GaN and GaN Based Heterostructures

Benoît Marie Joseph Deveaud, Jean-Daniel Ganière, Samuel Sonderegger, Nicolas Grandjean, Laurent Balet, Jelena Ristic, Pierre Michel Corfdir

Cambridge, Cambridge University Press2010

Picosecond time resolved cathodoluminescence to study semiconductor materials and heterostructures

Samuel Sonderegger

A large number of characterization tools for semiconductor based heterostructures are available nowadays. Most of these techniques deliver high temporal resolution (down to hundreds of femtoseconds) or good spatial resolution (down to sub nanometer resolut ...

EPFL2007

Time-Resolved Cathodoluminescence of InGaAs/AlGaAs Tetrahedral Pyramidal Quantum structures

Benoît Marie Joseph Deveaud, Jean-Daniel Ganière, Elyahou Kapon, Andrea Crottini, Samuel Sonderegger, Martin Henrik Baier

Springer-Verlag2006

Probing carrier dynamics in nanostructures by picosecond cathodoluminescence

Benoît Marie Joseph Deveaud, Jean-Daniel Ganière, Elyahou Kapon, Andrea Crottini, Samuel Sonderegger, Martin Henrik Baier

2005