H2020 FET PROACTIVE Hybrid Optomechanical Technologies (HOT)

Description

The H2020 FET Proactive project Hybrid Optomechanical Technologies (HOT) is pursued by a consortium of 17 major European research institutions, including 4 industrial players, which will explore the potential of hybrid-nano-optomechanical systems. The project will lay the foundation for a new generation of devices, which connect, or indeed contain, several platforms at the nanoscale in a single “hybrid” system. As hybrid interfaces they will allow to harness the unique advantages of each subsystem within a nano-scale footprint, while as integrated hybrid devices they will enable entirely novel functionalities. A particular focus will be on nano-optomechanical devices that comprise electrical, microwave or optical systems with micro- and nano-mechanical systems. Research in the past decade, in particular by European groups, has shown the significant technological potential that such nano-optomechanical systems can offer, in particular by establishing a new way in which optical, radio-frequency and microwave signals can be interfaced. The project focusses on hybrid opto- and electro-mechanical devices operating at the physical limit for conversion, synthesis, processing, sensing and measurement of EM fields, comprising radio, microwave frequencies to the terahertz domain. These spectral domains open realistic applications in the existing application domains of medical (e.g. MRI imaging), security (e.g. Radar and THz monitoring), positioning, timing and navigations (Oscillators) and for future quantum technology. The research aims at specific technological application, with realistic operating conditions and seeks to develop actual system demonstrators. In addition, it will explore how these hybrid transducers can be fabricated within standard CMOS processing, and thereby be made compatible with current manufacturing methods. The HOT devices will thereby impact today’s technology and likewise address potential future need for the manipulation of quantum signals.

In particular, the Konstanz node of HOT will target multimode nanoelectromechanical devices consisting of arrays of resonators. The linear and nonlinear dynamics as well as coherent control of these nanomechanical networks will be investigated. This will enable insights into parametric effects in coupled oscillators or synchronization phenomena, and could even pave the way towards a better understanding of topological mechanical nanostructures.

Institutions
  • FB Physik
Publications
    Gajo, Katrin; Schüz, Simon; Weig, Eva M. (2017): Strong 4-mode coupling of nanomechanical string resonators Applied Physics Letters ; 111 (2017), 13. - 133109. - ISSN 0003-6951. - eISSN 1077-3118

Strong 4-mode coupling of nanomechanical string resonators

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We investigate mechanical mode coupling between the four fundamental flexural modes of two doubly-clamped, high-Q silicon-nitride nanomechanical string resonators. Strong mechanical coupling between the strings is induced by the strain mediated via a shared clamping point, engineered to increase the exchange of oscillatory energy. One of the resonators is controlled dielectrically, which results in strong coupling between its out-of-plane and in-plane flexural modes. We show both, inter-string out-of-plane-in-plane and 3-mode resonance of the four coupled fundamental vibrational modes of a resonator pair, giving rise to a simple and a multimode avoided crossing, respectively.

Origin (projects)

Funding sources
Name Project no. Description Period
Europäische Union706/16H2020 FET Proactive01.01.2017 – 31.12.2020
Further information
Period: 01.01.2017 – 31.12.2020
Link: Project homepage