Ultrafast light-driven metasurfaces with an ultra-broadband frequency agile channel for sensing

In this paper, a novel compact biosensor is proposed with an ultrawide resonance frequency agile channel shifted from 0.82 to 1.85 THz, with a tuning functionality up to 55.7%, and sensitivity of 118 and 247 GHz/RIU at 0.82 and 1.85 THz.