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Updated: Jun 12, 2025

Theoretical Calculation and Experimental Verification for Dislocation Reduction in Germanium Epitaxial Layers with Semicylindrical Voids on Silicon
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在正方形格子阵列中第二阶非线性圆形二元体的纳米螺旋体的阵列

Grégoire Saerens1, Günter Ellrott2, Olesia Pashina3,4

  • 1ETH Zurich, Department of Physics, Institute for Quantum Electronics, Optical Nanomaterial Group, 8093 Zurich, Switzerland.

ACS photonics
|September 23, 2024
PubMed
概括

将结构化为纳米螺旋体,将第二和生成 (SHG) 显著提高100倍以上. 这种超材料方法打破了反向对称性,使中心对称材料中的非线性光子学成为可能.

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¹H NMR: Interpreting Distorted and Overlapping Signals01:02

¹H NMR: Interpreting Distorted and Overlapping Signals

Spin systems where the difference in chemical shifts of the coupled nuclei is greater than ten times J are called first-order spin systems. These nuclei are weakly coupled, and their chemical shifts and coupling constant can generally be estimated from the well-separated signals in the spectrum.
As Δν decreases and the signals move closer, the doublets appear increasingly distorted. The intensities of the inner lines increase at the cost of those of the outer lines as the signals are...
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