attocube systems AG | Date: 2015-04-29
Interferometer (10) for the real-time measurement of absolute distances and/or relative position movements between a first and a second machine part, comprising a measurement unit (20) and a reflector unit (40). wherein the measurement unit (20) comprises a housing (21) with at least one wall made of heat-conducting material, wherein several measurement elements are arranged in the housing (21), wherein the measurement elements comprise: a laser source (22), a Peltier element (24) and a digital control (23) wherein the measurement elements are thermally coupled to the wall of the housing (21) made of heat-conducting material.
Agency: European Commission | Branch: FP7 | Program: MC-ITN | Phase: FP7-PEOPLE-2011-ITN | Award Amount: 5.72M | Year: 2012
Over the past year a new research field has emerged: cavity Optomechanics which brings the quantum regime of mechanical oscillators in reach and may allow to explore new fundamental measurements concepts, may lead to novel transducers and test quantum mechanics on a macroscopic scale. In this research field, which utilizes mechanical oscillators coupled to laser fields, Europe has played a pioneering role. The distinguishing feature of this ITN training network is that the partners are active in this research field (cavity Optomechanics), which facilitates and indeed leverages the collaborative effort and will make this ITN highly effective. Cavity optomechanics is moreover a field which is highly faceted in terms of the required and offered training skills that spans quantum optics, nanofabrication, finite element simulation and cryogenic expertise and techniques as well as quantum theory. To effectively train new students it is therefore pivotal to train students in all relevant skills and techniques and theory. The realization that a single group is much less efficient than a consortium is the major driving force behind the ITN network. It will provide a streamlined, high quality-training program that offers a remarkably diverse set of skills. This training program will be of immediate benefit to the partners that will thereby obtain a superior training of their PhD students, which therefore provides a build-in mechanism that will ensure the effective realization of the proposed ITN training program and it success. The existence of such a training program, which will be opened to international groups, will contribute to the visibility of the EU cavity optomechanics community in an international setting.
Agency: European Commission | Branch: FP7 | Program: MC-ITN | Phase: FP7-PEOPLE-2011-ITN | Award Amount: 4.00M | Year: 2012
This network brings together an exceptionally strong group of world leading experts in nano-science and technology in order to achieve breakthroughs in understanding and successful utilisation of nanoscale systems in future devices. The focus of the consortium is on few spin nano-systems in solid-state materials including III-V semiconductors and Carbon-based structures: carbon nano-tubes, graphene and diamonds. Such wide material base emphasizes the truly intersectoral character of this collaboration opening opportunities for crossing the boundaries between several areas of solid-state physics and technology. In order to ensure the highest impact of this collaboration in the emerging supra-disciplinary field of physics and applications of spin nano-systems, we bring together the expertise of the world top class research institutions and industry from 4 European countries. The network will deliver top international level multidisciplinary training to 11 early stage researchers and 5 experienced researchers, offering them, in particular, an extended program of multinational exchanges and secondments. The research and development under this network will undertake a broad scope of tasks important for implementation of spin nano-systems in future devices, such as non-volatile ultra-compact memories, nano-magnetometers, spin qubits for quantum information, and high-efficiency single photon sources. The objectives of the network include: (1) Realization and optical control of coherent single spins in nanostructures; (2) Spin-orbit interaction and spin-orbit qubits in nanostructures; (3) Advanced techniques for manipulation of nuclear spins on the nanoscale; (4) Generation of long-distance entanglement between single spins.
Agency: European Commission | Branch: FP7 | Program: CP | Phase: ICT-2013.9.7 | Award Amount: 8.27M | Year: 2013
The DIADEMS project aims at exploiting the unique physical properties of NV color centres in ultrapure single-crystal CVD-grown diamond to develop innovative devices with unprecedented performances for ICT applications. By exploiting the atom-like structure of the NV that exhibits spin dependent optical transitions, DIADEMS will make optics-based magnetometry possible.\nThe objectives of DIADEMS are to develop\n- Wide field magnetic imagers with 1 nT sensivities,\n- Scanning probe magnetometer with sensitivity 10 nT and spatial resolution 10 nm,\n- Sensor heads with resolution 1 pT.\n\nTo reach such performances, DIADEMS will:\n- Use new theoretical protocols for sensing,\n- Develop ultrahigh purity diamond material with controlled single nitrogen implantation with a precision better than 5 nm,\n- Process scanning probe tips with diametre in the 20 nm range,\n- Transfer them to AFM cantilever, improve the emission properties of NV by coupling them with photonic cavities and photonic waveguides.\n\nDIADEMS outputs will demonstrate new ICT functionalities that will boost applications with high impact on society:\n- Calibration and optimization of write/read magnetic heads for future high capacity (3 Tbit per square inch) storage disk required for intense computing,\n- Imaging of electron-spin in graphene and carbon nanotubes for next generation of electronic components based on spintronics,\n- Non-invasive investigation of living neuronal networks to understand brain function,\n- Demonstration of magnetic resonance imaging of single spins allowing single protein imaging for medical research.\n\nDIADEMS aims at integrating the efforts of the European Community on NV centres to push further the limits of this promising technology and to keep Europes prominent position.
Agency: European Commission | Branch: H2020 | Program: MSCA-ITN-ETN | Phase: MSCA-ITN-2015-ETN | Award Amount: 3.97M | Year: 2016
This network brings together world-leading experts in nano-science and technology from 6 European countries in order to achieve breakthroughs in understanding and successful utilization of nanoscale solid-state spin systems in emerging quantum technologies. The proposed innovative science in the supra-disciplinary field of physics and applications of spin nano-systems will underpin breakthrough developments in quantum computing, quantum communications and networks, and nano-imaging. Important innovative step consolidating the joint effort of the whole consortium is the focus on crystalline solids where magnetic interactions of electron spins with lattice nuclei are negligible and well-controlled. We will develop electrically-controlled spin-quantum-bits (qubits) in Si-Ge quantum dots and nanowires; will optically manipulate spin impurities in diamond in applications for quantum computing and networks and in nano-magnetometry; will achieve new understanding of quantum phenomena due to the spin-valley coupling in atomically thin 2D semiconductors, an emerging class of materials with a promise for quantum technologies. Research training to 15 early stage researchers will be delivered by 14 academic and 7 industrial groups. Network-wide training course in transferable skills will be specially developed and delivered by the Think Ahead (Sheffield), an award winning initiative at the University of Sheffield (award by the Times Higher Education, 2014). Current proposal is designed to advance this multi-disciplinary research field significantly beyond the state-of-the-art, and train a new cohort of researchers capable of developing spin-based solid-state quantum technologies towards real-life applications in the next 5 to 10 years.
attocube Systems AG | Date: 2014-05-22
A device for absolute distance measurement includes a first tunable light source for emitting a first wavelength light of a first tunable frequency modulated by a first modulating frequency and a second light source for emitting a second wavelength light of a second frequency modulated by a second modulating frequency. An optical coupler couples the first wavelength light and the second wavelength light into an interferometer cavity. An interferometer detector provides an interference measurement signal based on a detected interference pattern. A demodulator unit generates a first demodulation signal based on the interference measurement signal by demodulation with the first modulating frequency and a second demodulation signal based on the interference measurement signal by demodulation with the second modulating frequency. A computation unit computes an absolute distance by evaluating the first demodulation signal acquired during a sweep of the first tunable frequency and the second demodulation signal.
Attocube Systems AG | Date: 2016-06-22
An electromechanical actuator (100) includes an oscillation resonator (10) having the shape of a rod. The oscillation resonator (10) is divided by a dividing plane (15) that is not parallel to the longitudinal direction of the oscillation resonator (10) into a first resonator portion (10A) and a second resonator portion (10B). At least the first resonator portion includes electromechanical means which, when activated, are configured to generate a 3-dimensional acoustic bulk wave are with a mode shape asymmetric with respect to the dividing plane (15).
Agency: European Commission | Branch: H2020 | Program: MSCA-ITN-ETN | Phase: MSCA-ITN-2016 | Award Amount: 3.90M | Year: 2017
We propose to forge a partnership between the leading European groups working on the next generation of solid state quantum emitters based on novel growth methods such as Droplet Epitaxy. Future, practical Nano-photonics and Quantum Circuits applications demand semiconductor quantum dots that can be grown on substrates with different lattice parameters (Si, Ge, GaAs), different substrate orientations (such as (001) and (111)) and tuneable optical, electrical and spin properties. All these requirements are met by high quality quantum dots grown with Droplet based Epitaxy techniques, circumventing the limitations of currently available systems based on strain-driven dot self-assembly. This vast novel research area at the crossroads of photonics, material science, quantum physics and nano-scale device fabrication will allow delivering top level multidisciplinary training to 15 early stage researcher (ESRs). The successful training of the ESRs by leading academic and 3 full industrial partners will be crucial for achieving the headline goals of this first ever consortium on droplet dot devices: (1) Entangled light emitting diodes with droplet dots grown on (111) substrates (2) Electrically triggered, droplet dot based single photon sources on Si/Ge substrates (3) Strain tuning in droplet dots without wetting layer: photon polarization and single spin control (4) Droplet Dot based single photon sources for non- classical light storage devices based on hybrid quantum systems (dots & laser-cooled atoms). The training and research progress will be discussed and monitored during the 4 project meetings, 3 summer schools and the final international conference on Droplet Dot Devices, all of which are open to the whole scientific community. We expect this network, based on the solid collaboration between growth groups, microscopists, quantum optics experimentalists and theorists to explore the full potential of this emerging technology.
attocube systems AG | Date: 2015-12-18
An electromechanical actuator includes an oscillation resonator having the shape of a rod. The oscillation resonator is divided by a dividing plane that is not parallel to the longitudinal direction of the oscillation resonator into a first resonator portion and a second resonator portion. At least the first resonator portion includes electromechanical means which, when activated, are configured to generate a 3-dimensional acoustic bulk wave are with a mode shape asymmetric with respect to the dividing plane.
Attocube Systems AG | Date: 2014-11-26
A device for absolute distance measurement comprises a first tunable light source for emitting a first wavelength light of a first tunable frequency modulated by a first modulating frequency and a second light source for emitting a second wavelength light of a second frequency modulated by a second modulating frequency. An optical coupler couples the first wavelength light and the second wavelength light into a Fabry-Prot interferometer cavity. An interferometer detector provides an interference measurement signal based on a detected interference pattern. A demodulator unit generates a first demodulation signal based on the interference measurement signal by demodulation with the first modulating frequency and a second demodulation signal based on the interference measurement signal by demodulation with the second modulating frequency. A computation unit computes an absolute distance by evaluating the first demodulation signal acquired during a sweep of the first tunable frequency and the second demodulation signal.