Development of rare-earth metal based nanosensory devices for environmental monitoring
Rare-earth metal compounds represent very promising materials to use in sensor elements for various types of photonics devices: communications, light and light sensor devices, imaging for safety & security, and optical sensors for high average and high peak power lasers. During the past 25+ years, GTU has conducted research on light radiation sensors based on rare-earth metals and their compounds. Their research has principally focused on:
- Heterogeneous combination of elements to integrate higher levels of intelligence into multifunctional microsystems including multisensing, processing, wireless and wired communication, and/or actuation capabilities;
- Smart systems based on innovative nanosensor devices and components, providing unprecedented levels of performance and representing a disruptive approach to known or new challenges;
- Integration of multiple elements of the value chain of heterogeneous systems - materials, modelling, design, processes, devices, packaging, characterisation, testing - contributing to more efficient manufacturing.
Meanwhile, GTU’s technology development activities have been aimed at the environment and food/beverage sector: focusing on integrated multi-sensing microsystems for environmental applications (including water treatment) or food and beverage quality and safety.
Notably, GTU work on innovative smart sensor systems for environmental monitoring. Their approach to developing multisensory networks for light and nuclear radiation monitoring is based on their research on self-organisation modelling of multi-agent systems. For multisensory networks for light and nuclear radiation monitoring, GTU proposes an approach based on fuzzy entropy, which is according to compatibility of the synapses. System stability or homeostasis in the given moment of time is determined as the difference of graph synergism and entropy. GTU’s analysis shows that the process of attraction and repulsion between agents can be described by nonlinear increasing or decreasing of synergy. Notably, self-organizing of multi-agent systems can be realized in the following sequence: Confrontation → Cooperation → Consolidation. These are the destructive (antagonistic or confrontational) and beneficial (cooperative) interaction forms. The very essence of any synergistic behaviour is that the two parts both benefit, and in larger systems all participants should benefit. In each given case the realization of the following versions of optimization is possible by criterion of the stability maximization.