Publication

Generation of highly confined optical bottle beams by exploiting the photonic nanojet effect

Publications associées (28)

Plasma fluctuation studies in the TCV tokamak : modeling of shaping effects and advanced diagnostic development

One of the most important issues for magnetic-confinement fusion research is the so-called anomalous transport across magnetic field lines, i.e. transport that is in excess of that caused by collisional processes. The need to reduce anomalous transport in ...

EPFL2009

Field confinement with aberration correction for solid immersion lens based fluorescence correlation spectroscopy

Theo Lasser, Jelena Mitic, Ramachandra Rao, Rainer Leitgeb

The solid immersion lens (SIL) as a tool for increasing the field confinement as well as providing optimal performance by aberration compensation in a confocal fluorescence correlation spectroscopy (FCS) system is illustrated here. Using Zernike polynomial ...

2007

Chapter 2: Plasma confinement and transport

Yves Martin, Jing Li

The understanding and predictive capability of transport physics and plasma confinement is reviewed from the perspective of achieving reactor-scale burning plasmas in the ITER tokamak, for both core and edge plasma regions. Very considerable progress has b ...

IOP Publishing Ltd2007

Inward thermodiffusive particle pinch in electron internal transport barriers in TCV

Timothy Goodman, Olivier Sauter, Henri Weisen, Stefano Coda, Alexey Zabolotskiy, Emiliano Fable, Costanza Zucca

Electron internal transport barriers (eITBs) are obtained in TCV with different heating and current drive schemes. They are sustained in steady-state conditions for several energy confinement and current redistribution times. In these scenarios, the densit ...

2006

Spinon deconfinement in doped frustrated quantum antiferromagnets

Frédéric Mila

The confinement of a spinon liberated by doping two-dimensional frustrated quantum antiferromagnets with a nonmagnetic impurity or a mobile hole is investigated. For a static vacancy, an intermediate behavior between complete deconfinement (kagome) and str ...

2006

Lattice-matched AlInN alloys for nitride-based optoelectronic devices

Julien Dorsaz

Gallium Nitride (GaN) and its ternary alloys with aluminium and indium have met a growing interest in the last decade. These semiconductors have a large direct bandgap and can be doped with either silicon (Si) for n-type and magnesium (Mg) for p-type layer ...

EPFL2006

Rapid electron internal transport barrier formation during magnetic shear reversal in fully non-inductive TCV discharges

Timothy Goodman, Antoine Pochelon, Olivier Sauter, Stefano Coda, Petri Nikkola, Yann Camenen, Emiliano Fable, Costanza Zucca

The rapid formation of an electron internal transport barrier (eITB) is observed during a slow evolution (similar or equal to 200 ms) from a centrally peaked to a hollow current density profile, while all external actuators remain constant. The time consta ...

IOP Publishing Ltd2005

Overview of transport, fast particle and heating and current drive physics using tritium in JET plasmas

Henri Weisen

Results are presented from the JET Trace Tritium Experimental (TTE) campaign using minority tritium (T) plasmas (n(T)/n(D) < 3%). Thermal tritium particle transport coefficients (D-T, nu(T)) are found to exceed neo-classical values in all regimes, except i ...

IOP Publishing Ltd2005