title: Nonlinear mixing in nanowire subwavelength waveguides.
abstract: The realization of nonlinear photonic circuits to achieve the control of light-by-light is contingent upon a strong nonlinear response that can be captured in a guided-wave geometry. There remains a need to further scale down waveguides while maintaining a strong nonlinear response. In this study, we report second-harmonic generation and optical parametric generation using the second-order nonlinear response in an 80 nm thick CdS nanowire subwavelength waveguide. Moreover, our three-dimensional finite-difference time-domain (FDTD) simulations demonstrate that it is possible to enhance the coherence length due to the very nature of the subwavelength geometry. Nonlinear mixing in a nanowire subwavelength waveguide represents an advance toward all-optical processing and all-optical switching in integrated photonic circuits.
authors.affiliation: Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, United States.
authors.forename: Carl J
authors.initials: CJ
authors.lastname: Barrelet
authors.forename: Ho-Seok
authors.initials: HS
authors.lastname: Ee
authors.forename: Soon-Hong
authors.initials: SH
authors.lastname: Kwon
authors.forename: Hong-Gyu
authors.initials: HG
authors.lastname: Park
mesh_terms: D019187:Cadmium Compounds / Q000737:chemistry*; D036103:Nanotechnology; D053770:Nanowires / Q000737:chemistry*; D010316:Particle Size; D013440:Sulfides / Q000737:chemistry*; D013499:Surface Properties
chemical_list: D019187:Cadmium Compounds; D013440:Sulfides; C034939:cadmium sulfide