Enhanced tunable second harmonic generation from twistable …
2021年3月3日 · Here, we report highly tunable second harmonic generation (SHG) from nanomechanically rotatable stacks of bulk hexagonal boron nitride (BN) crystals and introduce …
Edge-Enriched Large-Area Hexagonal BN Ultrathin Films with …
Herein, we report on the controlled growth of large-area and continuous ultrathin h-BN films with a high density of exposed edges that show strongly enhanced SHG, owing to the breaking of …
Probing Symmetry Properties of Few-Layer MoS2 and h-BN by …
2013年5月29日 · We have measured optical second-harmonic generation (SHG) from atomically thin samples of MoS 2 and h-BN with one to five layers. We observe strong SHG from …
Strong chiroptical nonlinearity in coherently stacked boron nitride ...
2024年6月6日 · This intrinsic architecture produces a strong nonlinear optical response in individual multiwalled BNNTs, enabling second-harmonic generation (SHG) with a conversion …
Large second harmonic generation in alloyed TMDs and boron …
2018年7月4日 · Our results reveal that by alloying TMD and BN layers, the χ (2) response improves in particular ranges of energy which makes them attractive for robust nonlinear …
Stacking Order Dependent Second Harmonic Generation and …
Here, we report a strong correlation between the interlayer stacking structures and optical and topological properties in chemically grown h -BN bilayers, measured mainly by using dark-field …
具有增强的光学二次谐波产生的边缘富集大面积六方氮化硼超薄 …
2021年9月24日 · 六方氮化硼 (h-BN) 层状材料的光学二次谐波 (SHG) 效率受对称性的影响很大，这严重限制了它们的 SHG 在非线性光学应用中的有用性。 在此，我们报告了大面积和连续 …
On-chip multi-degree-of-freedom control of two-dimensional
2024年8月21日 · We measure the second-harmonic generation (SHG) in twisted h-BN single-crystals. 2DM with broken inversion symmetry, such as h-BN, have a strong second-order …
二次谐波（SHG）和三次谐波（THG）激光 - 知乎
2024年10月9日 · 谐波是一种n个光子同时与材料相互作用并转换为一个光子的非线性光学过程。 二次谐波（second harmonic generation，SHG，两个光子变成一个光子）和三次谐波（third …
Second-harmonic generation of 2D-hBN - The Yambo Project
In this tutorial, we compute the Second-harmonic generation (SHG) from the dynamics of the Bloch-states. The equation-of-motion of the Bloch-states is explained in the tutorial on Linear …