Publications by Samuel Sonderegger

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

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

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

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

Cambridge, Cambridge University Press2011

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

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

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

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

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

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

Springer-Verlag2006

Probing carrier dynamics in nanostructures by picosecond cathodoluminescence

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

2005