相关实验视频

Updated: Jun 5, 2025

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station
05:57

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station

Published on: April 1, 2020

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低侧叶光学相位阵列与切比舍夫振幅分布.

Shi Zhao1, Daixin Lian1, Wenlei Li1

  • 1State Key Laboratory for Modern Optical Instrumentation, Center for Optical & Electromagnetic Research, International Research Center for Advanced Photonics, College of Optical Science and Engineering, Zhejiang University, Zijingang Campus, Hangzhou 310058, China.

Nanophotonics (Berlin, Germany)
|December 5, 2024
PubMed
概括

我们使用任意比率功率分割器开发了一种具有超低侧叶水平的光学光学相位阵列 (OPA). 这项技术实现了显著的侧叶抑制,使先进的光束方向和距离应用成为可能.

关键词:
低侧叶片阵列是低侧叶片阵列.光学相位阵列是一种光学相位阵列.光子学是一种光子学.

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IR Spectrum Peak Splitting: Symmetric vs Asymmetric Vibrations01:08

IR Spectrum Peak Splitting: Symmetric vs Asymmetric Vibrations

Identical bonds within a polyatomic group can stretch symmetrically (in-phase) or asymmetrically (out-of-phase). Similar to hydrogen bonding, these vibrations also influence the shape of the IR peak. Generally, asymmetric stretching frequencies are higher than symmetric stretching frequencies. For example, primary amines exhibit two distinct IR peaks between 3300–3500 cm−1 corresponding to the symmetric and asymmetric N-H stretching, while secondary amines exhibit a single...
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