Second-Order Nonlinearity Assisted by Dual Surface Plasmon Resonance Modes in Perforated Gold Film

Figure 5

(a) The spectrum for 𝐸_𝑥⁽¹⁾ component of fundamental frequency wave at the wavelength 1295 nm. Spectrum for (b) 𝐸_𝑦⁽²⁾ and (c) 𝐸_𝑥⁽²⁾ component of SHG at the wavelength 648 nm.

(a)

(b)

(c)