Figure 1: Absorption spectra.
From: Terahertz saturable absorbers from liquid phase exfoliation of graphite

Absorption of water-based (GW) and ethanol-based (GEth) inks from the visible to near-infrared range.
From: Terahertz saturable absorbers from liquid phase exfoliation of graphite

Absorption of water-based (GW) and ethanol-based (GEth) inks from the visible to near-infrared range.