Title :
Enhanced second-harmonic generation in periodic nonlinear optical nanostructures
Author :
Nakagawa, Wataru ; Klemens, Guy ; Fainman, Yeshaiahu
Author_Institution :
Dept. of Electr. & Comput. Eng., California Univ., San Diego, La Jolla, CA, USA
Abstract :
At present, the range of applications for nonlinear optical devices is limited in practical terms by the relatively small nonlinear optical coefficients available in natural materials. Recent advances in nanofabrication technologies have enabled the construction of a wide range of subwavelength optical nanostructures. Periodic optical nanostructures made of nonlinear optical materials can be used to enhance nonlinear optical phenomena through two mechanisms: transverse localization and phase matching. In this paper we present nanostructure designs for the enhancement of second-harmonic generation, analyze the transverse localization and phase matching effects in these structures, and predict the enhancement of the second harmonic generation process using a rigorous electromagnetic modeling tool
Keywords :
coupled mode analysis; eigenvalues and eigenfunctions; nanotechnology; optical arrays; optical harmonic generation; optical phase matching; optical planar waveguides; periodic structures; Fabry-Perot cavity; coupled array of waveguides; eigenvalues; electromagnetic modeling; enhanced second-harmonic generation; high refractive index material; high refractive index regions; integrated optical systems; mode propagation speeds; nanofabrication; near field effect; periodic nonlinear optical nanostructures; phase matching; rigorous coupled-wave analysis; single rectangular waveguides; space-harmonic expansion; subwavelength optical nanostructures; transverse localization; Electromagnetic analysis; Nanofabrication; Nanostructured materials; Nanostructures; Nonlinear optical devices; Nonlinear optics; Optical devices; Optical frequency conversion; Optical harmonic generation; Optical materials;
Conference_Titel :
Lasers and Electro-Optics Society, 2001. LEOS 2001. The 14th Annual Meeting of the IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-7105-4
DOI :
10.1109/LEOS.2001.969034
