Epsilon-near-zero ITO/Ag/SiO2 metamaterial for large nonlinear absorption

Open Access

Table 2

The SA of different materials.

Materials	Pumb laser	β(cm/GW)
Ag NPs [38]	532 nm 5 ns	−4.98 × 10⁻¹
ITO [20]	1240 nm 150 fs (Angle = 60°)	−7.6 × 10³
MoS₂ [39] ITO/Ag/ITO (multilayer) [40]	800 nm — 1310 nm 50 fs	−1.36 × 10² −6.48 × 10³
ITO/Ag/SiO₂ (multilayer)	725 nm 226 fs	−3.3 × 10⁴ (this work)

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