Shumin Xiao

Nov 2, 2023 | nature.com | Shumin Xiao |Shaohua Yu |Yuri S. Kivshar

AbstractLight scattered or radiated from a material carries valuable information on the said material. Such information can be uncovered by measuring the light field at different angles and frequencies. However, this technique typically requires a large optical apparatus, hampering the widespread use of angle-resolved spectroscopy beyond the lab. Here we demonstrate compact angle-resolved spectral imaging by combining a tunable metasurface-based spectrometer array and a metalens.