Extended Data Fig. 1: Band-edge absorption.
From: Cavity-driven attractive interactions in quantum materials
a, Schematic of THz absorption by a band edge (top) and the corresponding transmission spectrum (bottom), with an arrow marking the location of the band edge. b, Experimental transmission spectra at various displacement fields |D| > 0 and n = 0 referenced to the insulating state D = −0.36. The arrows mark the onset of absorption, similarly to panel a. Data obtained from device D1 at 5 K.
