Optical Society of America News April 4, 2019
An international team of researchers (Switzerland, Australia) combined dielectric metasurfaces and hyperspectral imaging to develop an ultrasensitive label-free analytical platform for biosensing. The technique can acquire spatially resolved spectra from millions of image pixels and use smart data-processing tools to extract high-throughput digital sensing information at the unprecedented level of less than three molecules per μm2. Spectral data retrieval from a single image without using spectrometers enabled paving the way for portable diagnostic applications. This combination of nanophotonics and imaging optics extends the capabilities of dielectric metasurfaces to analyse biological entities and atomic-layer-thick two-dimensional materials over large areas…read more. TECHNICAL ARTICLE
The detection platform demonstrated by scientists in Switzerland and Australia Credit: EPFL