Attocube Systems AG

München, Germany

Attocube Systems AG

München, Germany
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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.


The invention relates to an interferometer (10) for 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). The measurement unit (20) comprises a housing (21) having at least one wall that consists of a heat-conducting material, a plurality of measurement elements being arranged inside the housing (21). Said measurement elements comprise: a laser source (22), a Peltier element (24) and a digital control (23), and are thermally coupled to the wall of the housing (21) that consists of a heat-conducting material.


Patent
Attocube Systems AG | Date: 2017-08-16

Disclosed is a stick-slip drive comprising a base and a rotor which are in contact with one another via a friction surface and are coupled to one another in such a way that the rotor can perform an inertial motion relative to the base, characterized in that two materials, a noble metal and a ceramic material, are paired up on the friction surface between the base and the rotor.


Grant
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.


Grant
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.


Patent
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.


Patent
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).


Grant
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.


Patent
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.


Patent
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.

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