Fig. 3: Intensity dependence.
From: All-optical switching of an epsilon-near-zero plasmon resonance in indium tin oxide
Intensity-dependent Rpumped for a constant incident probe angle of Θ = 48. 3° and a pump with a constant frequency of 240 THz (TE polarized, i.e. non-resonant with the ENZ plasmon). The ENZ plasmon redshifts with increasing pump intensity. The red dashed line indicates the 70 GW cm−2 used for the measurements in Fig. 2. (pr: TM, 48.3°, fpr = 260…190 THz; pm: TE, 44.9°, fpm = 240 THz).
