Open AccessModeling third-harmonic generation from layered materials using nonlinear optical matrices
Author(s) -
Cristina Rodríguez,
W. Rudolph
Publication year - 2014
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.22.025984
Subject(s) - optics , second harmonic generation , nonlinear system , high harmonic generation , stack (abstract data type) , materials science , nonlinear optics , beam (structure) , reflection (computer programming) , signal (programming language) , transmission (telecommunications) , laser , total internal reflection , physics , computer science , telecommunications , quantum mechanics , programming language
A matrix approach is formulated to describe third-harmonic (TH) generation in stacked materials in the small signal limit, in both transmission and reflection geometries. The model takes into account the contribution from the substrate to the total generated TH, interference of fundamental and nonlinear fields inside the stack, the nonlinear signal generation in forward and backward direction, the beam profile of the focused incident beam in the substrate, and the finite spectrum associated with short laser pulses. The model is applied to design stacks of thin films for efficient TH generation.