High‐Performance Broadband Faraday Rotation Spectroscopy of 2D Materials and Thin Magnetic Films
High‐Performance Broadband Faraday Rotation Spectroscopy of 2D Materials and Thin Magnetic Films
A Faraday rotation spectroscopy (FRS) technique is presented for measurements on the micrometer scale. Spectral acquisition speeds of about two orders of magnitude faster than state-of-the-art modulation spectroscopy setups are demonstrated. The experimental method is based on charge-coupled-device detection, avoiding speed-limiting components, such as polarization modulators with lock-in amplifiers. At …