Plasmon-Enhanced Second-Harmonic Generation from Ionic This was accomplished by using nanosphere lithography to deposit silver nanoparticles on the ISAM film, tuning the geometry of the particles to make their plasmonic resonances overlap the frequency of optical excitation. An enhancement in the efficiency of second harmonic generation (SHG) by as much as 1600 times was observed. Nanoplasmonic Waveguides Filled with Electro‐Optical In this chapter, nanoplasmonic waveguides filled with electro-optical materials are proposed and discussed. Rigorous theoretical modelling is developed to describe the propagation, generation and control of electromagnetic fields confined in these nanoscale waveguides. Two configurations are studied thoroughly. First, a metal-insulator-metal (MIM) nanoplasmonic waveguide filled with lithium
PDF | We theoretically analyse quasi-phase matched second harmonic generation in a quadratic slot waveguide. Our results show that in this system both fundamental frequency and second harmonic (SH ...
Efficient phase-matched third harmonic generation in a ... Efficient phase-matched third harmonic generation in a metal-clad plasmonic double-slot waveguide Tingting Wu1,2,4, Perry Ping Shum1,2,3, Xuguang Shao1, Yunxu Sun1,4, Tinaye Huang1,2 and Lei Wei1 1School of Electrical and Electronics Engineering, Nanyang Technological University, 50 Nanyang Avenue 639798, Singapore Efficient phase-matched third harmonic generation in a ... Efficient phase-matched third harmonic generation in a metal-clad plasmonic double-slot waveguide Tingting Wu 1,2,4 , Perry Ping Shum 1,2,3 , Xuguang Shao 1 , Yunxu Sun 1,4 , Tinaye Huang 1,2 and Lei Wei 1 Efficient surface second-harmonic generation in slot micro ...
We theoretically investigate the possible increase of the second harmonic generation (SHG) efficiency in silicon compatible waveguides by considering an asymmetrical plasmonic slot waveguide geometry and a χ(2) nonlinear polymer infiltrating the slot. The needed phase matching condition is satisfied between the fundamental waveguide mode at the fundamental frequency (FF) and second-order
Efficient second-harmonic generation in silicon nitride We demonstrate a thousand-fold enhancement of second-harmonic generation in an all-dielectric silicon nitride (SiN) resonant waveguide grating compared to a flat SiN film. The str Efficient surface second-harmonic generation in slot micro It results from the modulation of the waveguide dispersion by slot structure. The slot structure enlarges the waveguide dispersion by more evanescent field propagating outside the fiber, making β 1 of the pump wave in fundamental mode and β 2 of the second-harmonic wave in high-order mode matched at a shorter wavelength. Highly Efficient Second Harmonic Generation in Hyperbolic
Substantial enhancement of nonlinear high-order harmonics generation based ... pending on the phase of Ge2Sb2Te5, we showed the generation of both second and third harmonics at amorphous ..... Asymmetric plasmonic slot waveguides.
Due to this limitation, wavelength generation in silicon has been focused on third-harmonic generation 2,3 and four-wave mixing 4,5 using the third-order nonlinear susceptibility χ (3) (ref. 6). Femtosecond second-harmonic generation in periodically ... Femtosecond second-harmonic generation in periodically poled lithium niobate waveguides with simultaneous strong pump depletion and group-velocity walk-off. Zheng Zheng* and Andrew M. Weiner. School of Electrical and Computer Engineering, Purdue University, 1285 EE Building, West Lafayette, Indiana 47907-1285. Second harmonic generation using IMI grating structure ... In this paper, the nonlinear effect of second harmonic generation (SHG) in insulator-metal-insulator plasmonic waveguides was investigated. Initially, an IMI plasmonic waveguide was simulated and its SHG effect was considered, then an IMI grating structure was proposed to increase the SHG effect and reduce its loss. Efficient second-harmonic generation in nonlinear ...
Second-order nonlinear waveguides based on strained silicon can achieve phase matching by dispersion-engineering. [74] So far, however, experimental demonstrations are based only on designs which are not phase matched. [75] It has been …
Efficient surface second-harmonic generation in ... mismatch arising from waveguide and material dispersion in ... the slot surface also helps to enhance the surface ...
Silicon nanoridge array waveguides for nonlinear and Silicon nanoridge array waveguides for nonlinear and sensing applications Matthew W. Puckett1,3 Rajat Sharma,1,3,* Felipe Vallini, 1 Shiva Shahin, Faraz Monifi,1 Peter N. Barrina, 1 Soroush Mehravar, 2 Khanh Kieu, and Yeshaiahu Fainman 1Department of Electrical & Computer Engineering, University of California, San Diego, 9500 Gilman Dr., La Jolla, Electric field-induced second-order nonlinear optical This induces a second-order optical nonlinear susceptibility that enables phase-only modulation and second-harmonic generation with an efficiency of ∼13% W–1 at 2.29 µm. slot waveguides ... Publilcations - MiPRoS