Title :
Efficient Third-Harmonic Generation From 2
in Asymmetric Plasmonic Slot Waveguide
Author :
Tianye Huang ; Xuguang Shao ; Zhifang Wu ; Lee, Taewoo ; Tingting Wu ; Yunxu Sun ; Jing Zhang ; Huy Quoc Lam ; Brambilla, Gilberto ; Shum, Perry Ping
Author_Institution :
NTU, Singapore, Singapore
Abstract :
We propose the asymmetrical plasmonic slot waveguide (APSW) design for third-harmonic generation (THG) from 2.25 μm. In this configuration, the phase-matching condition is fulfilled between the zeroth-order mode at fundamental frequency (FF) and the first-order mode at third-harmonic frequency (THF). Due to the asymmetrical geometry, the mode overlap between the two involved modes is significantly enhanced, leading to an efficient THG process. According to the numerical calculation, the conversion efficiency is predicted up to 1.4% with 1-W pump power. The proposed APSW has the potential to realize an integrated efficient THG device in nanometer scale.
Keywords :
optical harmonic generation; optical phase matching; optical pumping; optical waveguides; asymmetric plasmonic slot waveguide; asymmetrical geometry; conversion efficiency; first-order mode; phase-matching condition; power 1 W; third-harmonic frequency; third-harmonic generation; wavelength 2.25 mum; zeroth-order mode; Optical fiber devices; Optical fibers; Optical frequency conversion; Optimized production technology; Photonics; Nonlinear optical signal processing; fiber optics and optical communications; harmonic generation and mixing;
Journal_Title :
Photonics Journal, IEEE
DOI :
10.1109/JPHOT.2014.2323302