Numerical analysis of second harmonic generation for THz ... Numerical analysis of second harmonic generation for THz-wave in a photonic crystal waveguide using a nonlinear FDTD algorithm Metasurface-assisted phase-matching-free second harmonic ... ARTICLE Metasurface-assisted phase-matching-free second harmonic generation in lithium niobate waveguides Cheng Wang1, Zhaoyi Li2, Myoung-Hwan Kim3, Xiao Xiong1,4, Xi ... Nonlinear optics - Wikipedia Cross-polarized wave generation ... One of the most commonly used frequency-mixing processes is frequency doubling, or second-harmonic generation. Highly efficient second harmonic generation in hyperbolic ...
Huang T, Tagne PM, Fu S. Efficient second harmonic generation in internal asymmetric plasmonic slot waveguide. Opt Express. 2016;24(9):9706-14.
5 nm, v = 25 nm, h = 200 nm, λ FF = 1064 nm. from publication: High-confined second harmonic generation in nano-scale slot waveguides | We theoretically ... Microfiber-Lithium Niobate on Insulator Hybrid Waveguides for ... - MDPI Sep 9, 2015 ... In combination with the Quasi-Phase Matching (QPM) [6], this allows us to achieve high efficiency of second harmonic generation (SHG) [7] and ... Silicon photonics - Wikipedia
Second-Harmonic Generation in Integrated Photonics on
Highly efficient phase-matched second harmonic generation ...
Second harmonic generation. Second harmonic generation (SHG), also called frequency doubling, is a nonlinear optical process, in which photons interacting with a nonlinear material are effectively ‘combined’ to form new photons having twice the frequency of initial photons.
First-Order Forward and Backward Quasi-Phase Matched We propose and design a high-efficiency forward and backward second harmonic generation (SHG) in nonlinear polymer filled silicon slot waveguide known as silicon-organic hybrid (SOH) waveguides. The spatial distribution of second-order nonlinearity, χ(2), of waveguide is altered by periodically poling of nonlinear polymer to achieve quasi-phase matching (QPM) between fundamental frequency and Terahertz emission from a two-color plasma filament in a Terahertz emission in forward direction from a long two-color filament placed in the center of a slot waveguide is reported. The waveguide improves the collection and imaging of the generated THz radiation. By tuning the plate separation and position of the waveguide along the filament axis, the emitted mode can be matched to the collection optics. Loop-mirror-based slot waveguide refractive index sensor
Microfiber-Lithium Niobate on Insulator Hybrid Waveguides
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 ...
Large second harmonic generation enhancement in SiN waveguides. by all-optically induced quasi phase matching. Adrien Billat 1ϯ, Davide Grassani , Martin H. P. Pfeiffer2, Svyatoslav Kharitonov , Tobias J. On the origin of second harmonic generation in silicon ... Other early works were about second harmonic generation (SHG) in strained silicon waveguides 19. By using pump wavelengths above 2 μm, SH was generated in multimodal waveguides.