Mediaspace scheduled maintenance: Aug 25, 2026 07:00 - 12:00 AM. During this time, videos will be temporarily unavailable. Check status updates.

Concept

Magnétron

Publications associées (31)

Triode Solid Oxide Fuel Cell Operation Under Sulfur-Poisoning Conditions

Jan Van Herle, Stefan Diethelm, Priscilla Caliandro

The triode solid oxide fuel cell (SOFC) is a three electrodes configuration. The third electrode, so-called auxiliary, is connected in a way to run in electrolysis mode, while cathode and anode operate in normal fuel cell mode. This mixed operation allows ...

Wiley-V C H Verlag Gmbh2017

A dissipative quantum reservoir for microwave light using a mechanical oscillator

Tobias Kippenberg, Nathan Rafaël Bernier, László Dániel Tóth, Olexiy Feofanov

Isolation of a system from its environment is often desirable, from precision measurements to control of individual quantum systems; however, dissipation can also be a useful resource. Remarkably, engineered dissipation enables the preparation of quantum s ...

2017

Microwave Cavity Characterization for Rubidium Frequency Standards

Anton Evgeniev Ivanov

We report our studies on the new designed magnetron-type microwave cavity operating in the TE011-like mode, at the rubidium hyperfine ground-state frequency of about 6.835 GHz. The properties of the cavity resonance were studied as a function of cavity tem ...

2016

Compact Microwave Cavity with Increased Magnetic Field Homogeneity

Anja Skrivervik, Anton Evgeniev Ivanov

In this study we aim at improving the homogeneity of the magnetic field inside a microwave resonator cavity designed in line with the development of a novel, high performance frequency standard. We study the effect of modified boundary conditions applied t ...

2016

Study of Field Misalignment in a Cavity Used for Atomic Clock Applications

Anja Skrivervik

In vapor cell atomic clocks the atom-field interaction is typically obtained inside a microwave cavity resonator in which the microwave driving field together with a static magnetic field and an optical field are applied to excite the atoms. These fields a ...

Ieee2016

Novel linear analysis for a gyrotron oscillator based on a spectral approach

Stefano Alberti, Minh Quang Tran, Jean-Philippe Hogge, Jérémy Genoud, Trach-Minh Tran

With the aim of gaining a better physical insight into linear regimes in gyrotrons, a new linear model was developed. This model is based on a spectral approach for solving the self-consistent system of equations describing the wave-particle interaction in ...

American Institute of Physics (AIP)2016

Diamond optomechanical crystals in the resolved-sideband regime

We demonstrate diamond optomechanical crystals (OMCs), which support a similar to 6 GHz mechanical cavity coupled to a co-resonant similar to 200 THz photon field. Diamond OMCs are optically driven to a cooperativity >1, highlighted by observed 'phonon las ...

Ieee2016

Gyrotron physics from linear to chaotic regimes: experiment and numerical modeling

Falk Hans Braunmüller

Gyrotrons belong to the family of high-power coherent radiation sources known as Electron Cyclotron Masers (ECMs) and are based on the physical mechanism of the ECM-instability, converting electron rotational kinetic energy into coherent electromagnetic ra ...

EPFL2016

Polarization properties and disorder effects in H-3 photonic crystal cavities incorporating site-controlled, high-symmetry quantum dot arrays

Elyahou Kapon, Alok Rudra, Benjamin Dwir, Pascal Gallo, Marco Felici, Alessandro Surrente

We report on the effects of optical disorder on breaking the symmetry of the cavity modes of H-3 photonic crystal cavities incorporating site-controlled pyramidal quantum dots (QDs) as the internal light source. The high in-plane symmetry of the polarizati ...

Amer Inst Physics2015

The TORCH PMT: a close packing, multi-anode, long life MCP-PMT for Cherenkov applications

Christoph Frei

Photek (U.K.) and the TORCH collaboration are undertaking a three year development program to produce a novel square MCP-PMT for single photon detection. The TORCH detector aims to provide particle identification in the 2-10 GeV/c momentum range, using a T ...

Iop Publishing Ltd2015

Ion Trap with Narrow Aperture Detection Electrodes for Fourier Transform Ion Cyclotron Resonance Mass Spectrometry

Yury Tsybin, Anton Kozhinov, Konstantin Nagornov

The current paradigm in ion trap (cell) design for Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS) is the ion detection with wide aperture detection electrodes. Specifically, excitation and detection electrodes are typically 90A deg ...

Springer2015