Publications associées à Radio spectrum

Frequency division using a soliton-injected semiconductor gain-switched frequency comb

Tobias Kippenberg, Junqiu Liu, Wenle Weng

With optical spectral marks equally spaced by a frequency in the microwave or the radio frequency domain, optical frequency combs have been used not only to synthesize optical frequencies from microwave references but also to generate ultralow-noise microw ...

2020

Flip-Chip Wafer-Fused OP-VECSELs Emitting 3.65 W at the 1.55-mu m Waveband

Elyahou Kapon, Alok Rudra, Grigore Suruceanu, Alexandru Mereuta, Andrei Caliman, Pascal Gallo

Optically pumped vertical external cavity surface emitting lasers (VECSELs) based on flip-chip gain mirrors emitting at the 1.55 mu m wavelength range are reported. The gain mirrors employ wafer-fused InAlGaAs/InP quantum well heterostructures and GaAs/AlA ...

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2019

Model-based interpretation of floor vibrations for indoor occupant tracking

Ian Smith, Yves Sylvain Gilles Reuland, Slah Drira

Information regarding occupant flows inside buildings is beneficial for applications such as thermal-load control, market research and security enhancement. Existing methodologies for occupant tracking involve data-driven techniques that rely either on rad ...

2019

Bloch surface waves at the telecommunication wavelength with lithium niobate as the top layer for integrated optics

Hans Peter Herzig, Myun Sik Kim, Maria-Pilar Bernal

Lithium niobate (LN)-based devices are widely used in integrated and nonlinear optics. This material is robust and resistive to high temperatures, which makes the LN-based devices stable, but challenging to fabricate. In this work, we report on the design, ...

2019

Vibration tests on interconnected timber elements using wood-wood connections

Yves Weinand, Julien Gamerro, Jean-François Bocquet

Vibration tests were performed on 3 large-scale timber slabs using wood-wood connections with a span of 8.1 meters. 10 impulsive vibration tests per specimen were performed to estimate the initial natural frequency. Vibrations were triggered using a hammer ...

2019

AltitudeOmics: Spontaneous Baroreflex Sensitivity During Acclimatization to 5,260 m: A Comparison of Methods

Jean-Marc Vesin, Sasan Yazdani

Introduction Baroreflex sensitivity (BRS) is essential to ensure rapid adjustment to variations in blood pressure (BP). Spontaneous baroreflex function can be assessed using continuous recordings of blood pressure. The goal of this study was to compare fou ...

FRONTIERS MEDIA SA2019

Report of recent experiments with the European 1 MW, 170 GHz CW and SP prototype gyrotrons for ITER

Stefano Alberti, Minh Quang Tran, Jean-Philippe Hogge, Christian Schlatter, Francisco Sanchez, Ioannis Pagonakis, Martin Schmid, Konstantinos Avramidis

The European 1 MW, 170 GHz industrial CW prototype gyrotron has been designed within EGYC (European GYrotron Consortium) in collaboration with the industrial partner Thales Electron Devices (TED) and under the coordination of Fusion for Energy (F4E). This ...

E D P SCIENCES2019

A radio ridge connecting two galaxy clusters in a filament of the cosmic web

Claudio Gheller

Galaxy clusters are the most massive gravitationally bound structures in the Universe. They grow by accreting smaller structures in a merging process that produces shocks and turbulence in the intracluster gas. We observed a ridge of radio emission connect ...

AMER ASSOC ADVANCEMENT SCIENCE2019

Wave-conversion active liner based on generalized Snell-Descartes law

Hervé Lissek

The Cremer’s impedance theoretical framework has been used for years to optimally design acousticliners for the aeronautic industry, such as honeycomb liners. This passive mean of sound absorption,which consists in rather thin (a few centimeters) honeycomb ...

Canadian Acoustical Association2019

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Radio spectrum

Frequency division using a soliton-injected semiconductor gain-switched frequency comb

Flip-Chip Wafer-Fused OP-VECSELs Emitting 3.65 W at the 1.55-mu m Waveband

Model-based interpretation of floor vibrations for indoor occupant tracking

Bloch surface waves at the telecommunication wavelength with lithium niobate as the top layer for integrated optics

Vibration tests on interconnected timber elements using wood-wood connections

AltitudeOmics: Spontaneous Baroreflex Sensitivity During Acclimatization to 5,260 m: A Comparison of Methods

Engineering Parallel Transmit/Receive Radio-Frequency Coil Arrays for Human Brain MRI at 7 Tesla

Report of recent experiments with the European 1 MW, 170 GHz CW and SP prototype gyrotrons for ITER

A radio ridge connecting two galaxy clusters in a filament of the cosmic web

Wave-conversion active liner based on generalized Snell-Descartes law

Graph Chatbot

Chattez avec Graph Search

A radio ridge connecting two galaxy clusters in a filament of the cosmic web

Flip-Chip Wafer-Fused OP-VECSELs Emitting 3.65 W at the 1.55-mu m Waveband

Model-based interpretation of floor vibrations for indoor occupant tracking

Bloch surface waves at the telecommunication wavelength with lithium niobate as the top layer for integrated optics

Engineering Parallel Transmit/Receive Radio-Frequency Coil Arrays for Human Brain MRI at 7 Tesla

AltitudeOmics: Spontaneous Baroreflex Sensitivity During Acclimatization to 5,260 m: A Comparison of Methods

Wave-conversion active liner based on generalized Snell-Descartes law

Report of recent experiments with the European 1 MW, 170 GHz CW and SP prototype gyrotrons for ITER

Vibration tests on interconnected timber elements using wood-wood connections

Frequency division using a soliton-injected semiconductor gain-switched frequency comb