Concept

Magnétron

Publications associées (131)

Integrated modelling of Ion Cyclotron Resonant Heating in toroidal system

Jonathan Graves, Wilfred Anthony Cooper, Stephan Brunner, Martin Jucker, Nicolas Mellet

An integrated model capable of self-consistent Ion Cyclotron Resonant Heating (ICRH) simulations has been developed. This model includes both full shaping and pressure effects, warm contributions to the dielectric tensor, pressure anisotropy and finite orb ...

Elsevier B.V2011

On-chip stimulated Brillouin scattering

Luc Thévenaz

We demonstrate on-chip stimulated Brillouin scattering (SBS) in an As2S3 chalcogenide rib waveguide. SBS was characterized in a 7cm long waveguide with a cross-section 4μm x 850nm using the backscattered signal and pump-probe technique. The measured Brillo ...

Optical Society of America2011

Semianalytical approach to the design of photonic crystal cavities

Elyahou Kapon, Kirill Atlasov, Alessandro Surrente, Marco Felici

Most current methods for the engineering of photonic crystal (PhC) cavities rely on cumbersome, computationally demanding trial-and-error procedures. In the present work, we take a different approach to the problem of cavity design, by seeking to establish ...

American Physical Society2010

Design and characterization of low aspectratio nanopore arrays

Laurent Coulot

Alumina nanopores seem to be very promising concerning many applications, such as DNA analysis 1‐2, separation of molecules 3‐4 or fabrication of nanopillars 5‐6. The nanopores are made by anodization, which is a really simple fabrication process requiring ...

2010

Analysis of photonic crystal defect modes by maximal symmetrization and reduction

Marc-André Dupertuis, Benjamin Gallinet

We analyze in depth the eigenmodes symmetry of the vectorial electromagnetic wave equation with discrete symmetry, using a recently developed maximal symmetrization and reduction scheme leading to an automatic technique which decomposes every mode into its ...

2010

Electron beam characterization of a combined diode rf electron gun

Rasmus Ischebeck, Christoph Peter Hauri, Stefan Yves Gabriel Binder

Experimental and simulation results of an electron gun test facility, based on pulsed diode acceleration followed by a two-cell rf cavity at 1.5 GHz, are presented here. The main features of this diode-rf combination are: a high peak gradient in the diode ...

American Physical Society2010

Refractive index sensing with an air-slot photonic crystal nanocavity

Romuald Houdré, Hua Zhang, Nicolas Le Thomas, Jana Jágerská, Zhaolu Diao

We investigate an air-slot photonic crystal cavity for high-precision refractive index sensing. The high quality factor ∼2:6 × 10^4 of the cavity, along with a strong overlap between the resonant mode and the hollow core region, allows us to achieve an exp ...

Optical Society of America2010

Theoretical Analysis of Mechanical Displacement Measurement Using a Multiple Cavity Mode Transducer

Tobias Kippenberg, Jens Dobrindt

We present an optomechanical displacement transducer that relies on three cavity modes parametrically coupled to a mechanical oscillator and whose frequency spacing matches the mechanical resonance frequency. The additional resonances allow reaching the st ...

2010

Broadband MEMS-Tunable High-Index-Contrast Subwavelength Grating Long-Wavelength VCSEL

Elyahou Kapon, Alexandru Mereuta, Vladimir Iakovlev, Alexei Sirbu, Andrei Caliman, Jesper Mork

A widely-tunable single-mode 1.3 mu m vertical-cavity surface-emitting laser structure incorporating a microelectromechanical system-tunable high-index-contrast subwavelength grating (HCG) mirror is suggested and numerically investigated. A linear tuning r ...

Institute of Electrical and Electronics Engineers2010

Cyclinac Medical Accelerators Using Pulsed C6+/H2+ Ion Sources

Adriano Garonna, Alberto Degiovanni

Charged particle therapy, or so-called hadrontherapy, is developing very rapidly. There is large pressure on the scientific community to deliver dedicated accelerators, providing the best possible treatment modalities at the lowest cost. In this context, t ...

2010

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