Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Double Resonance Techniques: Overview01:12

Double Resonance Techniques: Overview

191
Double resonance techniques in Nuclear Magnetic Resonance (NMR) spectroscopy involve the simultaneous application of two different frequencies or radiofrequency pulses to manipulate and observe two distinct nuclear spins. One important application of double resonance is spin decoupling, which selectively suppresses coupling with one type of nucleus while observing the NMR signal from another nucleus, simplifying the spectrum and enhancing resolution.
Spin decoupling is usually achieved by...
191

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Clinical quality of breath-held T1-weighted breast MRI in the supine position.

European journal of radiology·2026
Same author

High coupling efficiency dual-wavelength band waveguide grating couplers.

Optics letters·2026
Same author

Low-loss plasmonic waveguide with high optical confinement on the thin-film lithium niobate-on-insulator (LNOI) platform.

Optics letters·2026
Same author

<math><semantics><mrow><msub><mi>T</mi> <mn>2</mn></msub></mrow> <annotation>$$ {\boldsymbol{T}}_{\mathbf{2}} $$</annotation></semantics></math> -Weighted Imaging of Water, Fat and Silicone.

Magnetic resonance in medicine·2026
Same author

Biomarkers.

Alzheimer's & dementia : the journal of the Alzheimer's Association·2025
Same author

Alzheimer's Imaging Consortium.

Alzheimer's & dementia : the journal of the Alzheimer's Association·2025
Same journal

Gaussian-modulated continuous-variable quantum key distribution over 60 km fiber using an integrated silicon photonic receiver.

Optics letters·2026
Same journal

E2E-OCT: end-to-end joint learning model using optical coherence tomography images for vocal cord leukoplakia diagnosis.

Optics letters·2026
Same journal

Holographic generation of panoramic 3D scenes by concave ellipsoidal mirror reflection.

Optics letters·2026
Same journal

Dual-pilot phase recovery with pair-wise maximum-ratio combining for coherent PONs.

Optics letters·2026
Same journal

Mapping the whispering gallery modes of a CaF<sub>2</sub> disk resonator with half-tapered fibers to estimate the fundamental mode volume.

Optics letters·2026
Same journal

Quantitative estimation of deep-subwavelength scale via dark-field scattering axial energy concentration decay profiles.

Optics letters·2026
查看所有相关文章

相关实验视频

Updated: Jun 6, 2025

Fabrication of High Contrast Gratings for the Spectrum Splitting Dispersive Element in a Concentrated Photovoltaic System
12:08

Fabrication of High Contrast Gratings for the Spectrum Splitting Dispersive Element in a Concentrated Photovoltaic System

Published on: July 18, 2015

10.7K

高合效率极化分裂波导网格合器

Xuetong Zhou, Hon Ki Tsang

    Optics letters
    |November 27, 2024
    PubMed
    概括
    此摘要是机器生成的。

    我们开发了一种新型的极化分裂波导网格合器 (PSWGC),用于高效的光合. 这种光子装置在没有金属反射器的情况下,在横向电 (TE) 和横向磁 (TM) 极化方面都实现了高合效率.

    更多相关视频

    Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
    11:08

    Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

    Published on: November 30, 2012

    18.9K
    Microwave Photonics Systems Based on Whispering-gallery-mode Resonators
    12:18

    Microwave Photonics Systems Based on Whispering-gallery-mode Resonators

    Published on: August 5, 2013

    16.9K

    相关实验视频

    Last Updated: Jun 6, 2025

    Fabrication of High Contrast Gratings for the Spectrum Splitting Dispersive Element in a Concentrated Photovoltaic System
    12:08

    Fabrication of High Contrast Gratings for the Spectrum Splitting Dispersive Element in a Concentrated Photovoltaic System

    Published on: July 18, 2015

    10.7K
    Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
    11:08

    Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

    Published on: November 30, 2012

    18.9K
    Microwave Photonics Systems Based on Whispering-gallery-mode Resonators
    12:18

    Microwave Photonics Systems Based on Whispering-gallery-mode Resonators

    Published on: August 5, 2013

    16.9K

    科学领域:

    • 光子学 是一个光子学.
    • 光学工程是指光学工程.
    • 材料科学 材料科学 材料科学

    背景情况:

    • 波导网格合器对于将光纤与光子集成电路接口至关重要.
    • 在光子学中,同时实现高合效率和极化选择性仍然是一个挑战.

    研究的目的:

    • 为高合效率极化分裂波导格合器 (PSWGCs) 提出和验证一种新方法.
    • 为了证明PSWGC设计与标准的光子制造工艺兼容.

    主要方法:

    • 使用聚覆盖格,与底层的格相对移动.
    • 设计PSWGC以将直角偏振 (TE和TM) 结合在不同的方向.
    • 执行设计模拟和实验验证制造的设备.

    主要成果:

    • 模拟的合效率为-1.46 dB (TE) 和-1.88 dB (TM). 模拟的合效率为-1.46 dB (TE) 和-1.88 dB (TM).
    • 通过实验测量到的合效率为-2.37 dB (TE) 和-2.51 dB (TM).
    • 在不需要底部金属反射器的情况下实现了高效率.

    结论:

    • 拟议的PSWGC为光子学中的极化管理提供了一种高性能解决方案.
    • 该设计兼容使用光刻法进行大批量制造,从而实现商业造厂集成.