Yuri S. Kivshar

Jun 13, 2024 | nature.com | Ihar Faniayeu |Shanhui Fan |Yuri S. Kivshar |Jason Valentine

AbstractOptical nonreciprocity is manifested as a difference in the transmission of light for the opposite directions of excitation. Nonreciprocal optics is traditionally realized with relatively bulky components such as optical isolators based on the Faraday rotation, hindering the miniaturization and integration of optical systems.

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.