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Table 1 Various parameters for porous gold films

From: Surface Plasmon’s Dispersion Properties of Porous Gold Films

  Sample no. 1 2 1′ 2′
PLD P Ar, Pa 20 70 20 70
N ∙ 103 3 3 15 15
ΑFM D, nm 10.8 (4.9–22.7) 6.9 (3.6–12.2) 25.5 (3–56.4) 16.3 (3.2–31.7)
R, nm 40 (25.3–71.84) 9.7 (6–16.7) 19 (9.1–29.9) 11.9 (4.4–18.9)
Average neighbor distance, nm 40 9.7 19 11.9
q 0.3 0.23 1 1
XRR Density NP ∙ 103/μm2 3 5.5 1.7 4.3
Porosity, %    30.1 36.6
d, nm 10.6 6
T(λ) λ min, nm 680 740 620 560
θ ρ=0(λ) λ р, nm (ω р 1015, Hz) 552 (3.415) 590 (3.195) 508 (3.71) 515 (3.66)
ρ(λ) θ = 45°–60° (70)° ω sp1 ∙ 1015, Hz 4.25–(4.20) 4.23–(4.32) 4.34–4.33 4.3–4.37
γ sp1 ∙ 1015, s−1 0.57–(0.63) 0.52–(1.11) 1–1.08 0.96–1.03
ω sp2,3 ∙ 1015, Hz 3.29–(3.18) 3.14–(2.76) 3.1–2.04 2.08–1.85 3.34–2.4 2.4–1.97
γ sp2,3 ∙ 1015, s−1 1.35–(1.36) 1.62–(1.29) 1.4–1.14 1.04–0.36 1.08–0.98 1.27–0.4