Second harmonic generation at a time-varying interface [PDF]
Nature CommunicationsTime-varying metamaterials rely on large and fast changes of the linear permittivity. Beyond the linear terms, however, the effect of a non-perturbative modulation of the medium on harmonic generation remains largely unexplored.
Romain Tirole +8 more
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Second harmonic generation in monolithic gallium phosphide metasurfaces [PDF]
NanophotonicsGallium phosphide (GaP) offers unique opportunities for nonlinear and quantum nanophotonics due to its wide optical transparency range, high second-order nonlinear susceptibility, and the possibility to tailor the nonlinear response by a suitable choice ...
Yang Muyi +7 more
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Characterizing G-type antiferromagnetism quantitatively with optical second harmonic generation [PDF]
Light: Science & ApplicationsAntiferromagnetism has become a promising candidate for the next generation electronic devices due to its thermal stability, low energy consumption, and fast switching speed.
Shuai Xu +16 more
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Second harmonic generation in modal phase-matched AlGaAs-on-insulator waveguides [PDF]
EPJ Web of Conferences, 2023 We utilize modal phase matching and type-I configuration to achieve second harmonic generation in AlGaAs-on-insulator waveguides. We demonstrate an overall normalized conversion efficiency of 200% W-1 cm-2 at a pump wavelength of 1587 nm in a 1-mm-long ...
Lu Xinda +4 more
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Deciphering second harmonic generation signals
Chemical Science, 2021 Second harmonic generation is one of the most powerful techniques used to selectively probe interfaces of all types. The direct ab initio method developed here allows predicting the signal and highlights the importance of local and non-local effects.
Foucaud, Y. +6 more
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Research Paper: Compensation of Thermal Phase Mismatch Effects in The High Power Second Harmonic Generation Using a Chirped Periodically Poled Non-linear Crystal [PDF]
فیزیک کاربردی ایران, 2022 Thermal effects strongly influence the process of second harmonic generation, especially at high fundamental powers. The generation of non-uniform temperature distribution in the crystal due to the absorption of fundamental and second harmonic waves ...
Saeed Ghavami Sabouri
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Second‐Harmonic Generation in Strained Silicon Metasurfaces
Advanced Photonics Research, 2022 Dielectric metasurfaces supporting Mie resonances can allow significantly boosted and tailored nonlinear light–matter interactions at the nanoscale. However, nonlinear dielectric metasurfaces typically only have odd‐order nonlinearities, unless resorting
Yun Zhao +6 more
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Second harmonic generation in amorphous silicon-on-silica metamaterial
APL Photonics, 2021 We demonstrate second harmonic generation by using an amorphous silicon metamaterial fabricated on the tip of an optical fiber that collects the generated light.
Jie Xu +3 more
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Second Harmonic Generation in Generalized Ferroelectric Superlattices [PDF]
Integrated Ferroelectrics, 2021 The goal of the work presented in this investigation is to achieve the efficient parametric interaction of narrow beams (in particular second harmonic generation) using a nonlinear (ferroelectric-LiTaO3) photonic crystal tuned to self-collimation (nondiffractive) regimes.
Ozer, Z. +3 more
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Second harmonic generation enhancement by polarization-matched nanostructures -INVITED [PDF]
EPJ Web of Conferences, 2020 Frequency conversion plays an important role in both fundamental and applied nano-optics. Doubling the frequency of light by second harmonic generation (SHG) is a vital process e.g. in laser optics or high-resolution microscopy.
Dreser Christoph +10 more
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