dc.contributor.authorWu, Tingting
dc.contributor.authorSun, Yunxu
dc.contributor.authorShao, Xuguang
dc.contributor.authorShum, Perry Ping
dc.contributor.authorHuang, Tianye
dc.identifier.citationWu, T., Sun, Y., Shao, X., Shum, P. P., & Huang, T. (2014). Efficient phase-matched third harmonic generation in an asymmetric plasmonic slot waveguide. Optics Express, 22(15), 18612-18624.en_US
dc.description.abstractAn asymmetric plasmonic slot waveguide (APSW) for efficient phase-matched third harmonic generation (THG) is proposed and demonstrated theoretically. Nonlinear organic material DDMEBT polymer is integrated into the bottom of the metallic slot, while silicon is used to fill the top of the slot. We introduce the rigorous coupled-mode equations of THG in the lossy APSW and apply them to optimize the waveguide geometry. Taking advantage of the surface plasmon polaritons (SPPs), the electric fields can be tightly confined in the metallic slot region and the nonlinear effect is greatly enhanced accordingly. Then, we investigate the relationships between THG efficiency and parameters such as slot width and height, phase matching condition (PMC), modal overlap related nonlinear parameter, figure-of-merit, pump power and detuning. With the proposed asymmetric waveguide, we demonstrate a high THG conversion efficiency of 4.88 × 10−6 with a pump power of 1 W and a detuning constant of −36 m−1 at a waveguide length of 10.65 𝜇???�m.en_US
dc.relation.ispartofseriesOptics expressen_US
dc.rights© 2014 Optical Society of America. This paper was published in Optics Express and is made available as an electronic reprint (preprint) with permission of Optical Society of America. The paper can be found at the following official DOI: http://dx.doi.org/10.1364/OE.22.018612.  One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.en_US
dc.subjectDRNTU::Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics
dc.titleEfficient phase-matched third harmonic generation in an asymmetric plasmonic slot waveguideen_US
dc.typeJournal Article
dc.contributor.schoolSchool of Electrical and Electronic Engineeringen_US
dc.description.versionPublished versionen_US

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