Nanoscale nonlinear optical process: theoretical modeling of second-harmonic generation for both forbidden and allowed light

Based on a combination of the multiple-multipole method and nonlinear coupled-wave equations, a rigorous three-dimensional numerical simulation of nonlinear optical interactions between an optical near field and a nonlinear medium is performed, allowing us to study the dependence of second-harmonic...

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Veröffentlicht in:Optics letters 2000-05, Vol.25 (9), p.640-642
Hauptverfasser: Jiang, Y, Jakubczyk, D, Shen, Y, Swiatkiewicz, J, Prasad, P N
Format: Artikel
Sprache:eng
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Zusammenfassung:Based on a combination of the multiple-multipole method and nonlinear coupled-wave equations, a rigorous three-dimensional numerical simulation of nonlinear optical interactions between an optical near field and a nonlinear medium is performed, allowing us to study the dependence of second-harmonic (SH) near-field intensity on tip-sample distance and the polarization state of the incident fundamental wave. It is demonstrated that allowed and forbidden light make different contributions to the SH near-field intensity.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.25.000640