Science Daily October 20, 2022
Miniaturized computational spectrometers, which can obtain incident spectra using a combination of spectral responses and reconstruction algorithms, are essential for on-chip and implantable applications. Highly sensitive spectral measurement using a single detector allows the footprints of such spectrometers to be scaled down while achieving spectral resolution approaching that of benchtop systems. An international team of researchers (Finland, USA – Oregon State University, South Korea, UK, China) has developed a high-performance computational spectrometer based on a single van der Waals junction with an electrically tunable transport-mediated spectral response. They achieved high peak wavelength accuracy, high spectral resolution, broad operation bandwidth and proof-of-concept spectral imaging. Their approach provides a route toward ultraminiaturization and offers unprecedented performance in accuracy, resolution, and operation bandwidth for single-detector computational spectrometers…read more. TECHNICAL ARTICLEÂ
Credit: Pixabay/CC0 Public Domain. Credit: SCIENCE, 20 Oct 2022, Vol 378, Issue 6617, pp. 296-299