Simultaneous generation of second and third optical harmonics on a metal grating

Giant Nonlinear Optical Activity of Achiral Origin in Planar Metasurfaces with Quadratic and Cubic Nonlinearities

“…In particular, it is assumed that the optical nonlinearity of the medium is homogeneous and isotropic, so that the nonlinear third-order susceptibility tensor is described by a single quantity. The numerical values of this susceptibility in the cases of Gold [ 34 ] , PFO [ 35 ] , and ITO [ 36 ] 2 , respectively. The linear material dispersion parameters can be found in refs.…”

Numerical investigation of the excitation of surface plasmon polariton on a periodic surface nanograting composed of metallic nanowires

“…The solution of the vector's Maxwell's equations provides the expressions for the partial reflection and transmission coefficient of a separate inhomogeneous layer. Note, that th is ap proach was used in [19][20][21] to calcu late th e in tensity o f bo th lin ear and non linear op tical respo nse of p eriodic metallic diffraction gratings as a function of (i) the light angle, wavelength, and (ii) polarization of the incident wave, as well as o f (iii) th e ro tation an gle of t he g rating arou nd its normal. Th e calcu lation results agree well with the experimental data.…”

“…Th e calcu lation results agree well with the experimental data. [19][20][21] Within the bounds of the second method the field in the range of the grating is expressed in terms of ei genmodes of t he g rating, whe reas t he field o ut of t he rang e of t he grat ing i s exp ressed i n t erms of t he R ayleigh series. 22,23 Th e fi rst method i s sui ted for periodic g ratings wi th ar bitrary pr ofile.…”

Second harmonic generation by periodically-structured metal surfaces

“…A variety of theoretical approaches have also been put forward, usually in the context of a particular class of experiments. [32][33][34][35][36][37][38][39][40][41][42][43][44][45][46] In this paper we develop an approach which can be applied to a range of geometric configurations. It is a combination of analytic parametrizations of second harmonic generation ͑shg͒ ͑Refs.…”