Home page The Laboratory Research teams Helium : from fundamental to applications - HELFA

Helium : from fundamental to applications - HELFA

News

- NIKA observes galaxies clusters colliding. More here, and visit the Néel Astrophysics Instrumentation group.
- Successfull installation for NIKA2. More here and visit the Néel Astrophysics Instrumentation group.
- On Friday, February the 5th @ 2 PM, in Rammal (building M), Ariel Haziot will talk about the closed cycle spatial dilution fridge.
- On Friday, February the 19th @ 2 PM, Mathieu Gibert will present the measurements of second sound attenuation in the SHREK experiment.
- On Friday, March the 4th @ 2 PM, Eléonore Rusaouen will present the GReC experiment running at CERN.

Helfa

Personnels Meca_fluide He_conf Astro Collabo Optique

The Helfa team (Helium, from fundamentals to applications) adresses two main topics :

- fundamental physics studies using helium as a model system

- development of sophisticated cryogenic instrumentation for astrophysics and particle physics.

In the first category, we presently study the effect of confinement or disorder on quantum and classical phase transitions, as well as classical or quantum turbulence of 4He, a subject that has been pionereed in Grenoble about 25 years ago.

The second category includes our researches on refrigeration methods, as well as on new kinds of detectors, with the specificity that we cover all steps of the innovation process, from the development of basic principles to the commissionning of operating systems. Following our development of the open-cycle dilution refrigerator operating in gravity free conditions used in the Planck satellite, we now develop a space borne, closed cycle, dilution refrigerator for cooling detectors in the 50 mK range, a requirement for the planned spatial missions of the next 30 years. We also develop cryogenic detectors for millimeter and sub-millimeter radiation based on the new superconducting KID technology. We are leading the NIKA and NIKA2 instruments, respectively the first worldwide mm-wave camera having used KID (2009-2014) and the biggest mm-wave camera available for general purposes by the astronomers in the period 2015-2025. A part of our activities is made in collaboration with the MAGSUP group and researchers from other laboratories.

Part of the team, December 2014

Quantum coherence - CQ

Quantum coherence - CQ

Revealing quantum phenomena in electronic nano-circuits
Helium : from fundamental to applications - HELFA

Helium : from fundamental to applications - HELFA

Helium as model system, hydrodynamic and turbulence, space and astrophysics, instrumentation and cryogenic development, kinetic inductance detectors.
Magnetism and Superconductivity - MagSup

Magnetism and Superconductivity - MagSup

Team Magnetism and Superconductivity at Institut NEEL - Systems involving charge, spin or lattice degrees of freedom.
Optics and materials - OPTIMA

Optics and materials - OPTIMA

a complete chain of competences that goes from the design and elaboration of new materials to the study of nonlinear optical properties and plasmonics
Materials, Radiations, Structure - MRS

Materials, Radiations, Structure - MRS

Understanding of the physico-chemical properties of complex materials based on the precise description of their structure
Micro and NanoMagnetism - MNM

Micro and NanoMagnetism - MNM

Complementary expertise in fabrication, characterisation, and simulations for studies in nanomagnetism with applications in spin electronics and micro-systems
Quantum Nano-Electronics and Spectroscopy - QNES

Quantum Nano-Electronics and Spectroscopy - QNES

Electron transport and local spectroscopy of quantum structures
Nano-Optics and Forces - NOF

Nano-Optics and Forces - NOF

Nano - optics and forces
Nanophysics and Semiconductors - NPSC

Nanophysics and Semiconductors - NPSC

Growth of III-V and II-VI semiconductor nanostructures and their physics in search of new functions for potential applications.
Nanospintronics and Molecular Transport - NanoSpin

Nanospintronics and Molecular Transport - NanoSpin

Studying magnetism at the nanoscale, where classical and quantum properties can be combined and used for molecular quantum spintronics
Wide bandgap semiconductors - SC2G

Wide bandgap semiconductors - SC2G

Physics of diamond and other wide bandgap semiconductors towards applications in electronics and biotechnologies
Surfaces, Interfaces and Nanostructures - SIN

Surfaces, Interfaces and Nanostructures - SIN

Experimental and theoretical studies of low dimensional systems
Hybrid Systems at low dimension - HYBRID

Hybrid Systems at low dimension - HYBRID

Electronic, optical, vibrational, mechanical properties, as well as their interplay at the nanoscale, of novel hybrid systems (nanotubes, graphene, two-dimensional and functionalized materials) which are developed by the group .
Condensed Matter Theory -TMC

Condensed Matter Theory -TMC

Novel physical phenomena in materials and model systems.
Thermodynamics and Biophysics of small systems - TPS

Thermodynamics and Biophysics of small systems - TPS

Ultra-sensitive instrumentation for electrical and thermal measurements: from biophysics to low temperature condensed matter physics.
Theory of Quantum Circuits - ThQC

Theory of Quantum Circuits - ThQC

Theoretical studies of electronic transport in nanometer-scale devices showing remarkable quantum effects.
Ultra-low temperatures - UBT

Ultra-low temperatures - UBT

Quantum physics at the ultra-low temperature frontier.
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