Leading international Open Access peer-reviewed scientific journal Sensors, devoted to the science and technology of sensors, in its issue 21(15), 2021 has published an article Time-Resolved FDTD and Experimental FTIR Study of Gold Micropatch Arrays for Wavelength-Selective Mid-Infrared Optical Coupling, which is the result of a fruitful collaboration between researchers representing ISSP UL and RISE - CAMART2 RIX-STO collaboration platform.
In the article, scientists describe the results of their work in which they combined computational simulations with experimental characterizations of nanofabricated single layers of two-dimensional gold micropatch arrays to understand and design wavelength-selective far- and near-field infrared optical couplings that operate in mid-IR wavelength regime aiming for, e.g., CO2 and alcohol sensing.
Infrared radiation (IR) photodetectors have been under continuous research and development where new innovations are a constant demand, especially from industrial perspectives regarding cost effective IR products with enhanced performance. However, the wide dissemination of these IR photodetectors is still limited due to a lack of solutions for high sensitivity, wavelength-selectivity, room-temperature operation, miniaturization and low-cost.
The work was partially supported by Sweden’s innovation agency Vinnova (Large area CVD graphene-based sensors/IR-photodetectors 2020-00797) and EU CAMART2 project (European Union’s Horizon 2020 Framework Programme H2020-WIDESPREAD-01-2016-2017-TeamingPhase2 under grant agreement No. 739508). TY acknowledges European Regional Development Fund Project No.18.104.22.168/VIAA/4/20/740.