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相关概念视频

Range00:59

Range

14.2K
The range is one of the measures of variation. It can be defined as the difference between a dataset's highest and lowest values. For example, in the study of seven 16-ounce soda cans, the filled volume of soda was measured, thus producing the following amount (in ounces) of soda:
15.9; 16.1; 15.2; 14.8; 15.8; 15.9; 16.0; 15.5
Measurements of the amount of soda in a 16-ounce can vary since different subjects record these measurements or since the exact amount - 16 ounces of liquid, was not...
14.2K
IR Spectrum Peak Broadening: Hydrogen Bonding01:23

IR Spectrum Peak Broadening: Hydrogen Bonding

1.8K
The vibrational frequency of a bond is directly proportional to its bond strength. As a result, stronger bonds vibrate at higher frequencies, while weaker bonds vibrate at lower frequencies. The stretching vibration of the strong O–H bond in alcohols and phenols (very dilute solution or gas phase) appears as a sharp peak at 3600–3650 cm−1.
However, the extent of hydrogen bonding influences the observed stretching frequency and band broadening. Intermolecular or intramolecular...
1.8K
Properties of Transition Metals02:58

Properties of Transition Metals

29.8K
Transition metals are defined as those elements that have partially filled d orbitals. As shown in Figure 1, the d-block elements in groups 3–12 are transition elements. The f-block elements, also called inner transition metals (the lanthanides and actinides), also meet this criterion because the d orbital is partially occupied before the f orbitals.
29.8K
Bonding in Metals02:32

Bonding in Metals

52.4K
Metallic bonds are formed between two metal atoms. A simplified model to describe metallic bonding has been developed by Paul Drüde called the “Electron Sea Model”. 
52.4K
Metallic Solids02:37

Metallic Solids

20.6K
Metallic solids such as crystals of copper, aluminum, and iron are formed by metal atoms. The structure of metallic crystals is often described as a uniform distribution of atomic nuclei within a “sea” of delocalized electrons. The atoms within such a metallic solid are held together by a unique force known as metallic bonding that gives rise to many useful and varied bulk properties.
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability....
20.6K
Alkali Metals03:06

Alkali Metals

24.6K
Group 1 elements are soft and shiny metallic solids. They are malleable, ductile, and good conductors of heat and electricity. The melting points of the alkali metals are unusually low for metals and decrease going down the group, while the density increases going down the group with the exception of potassium (Table 1).
Table 1: Properties of the alkali metals
24.6K

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相关实验视频

Updated: Feb 4, 2026

Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures
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Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures

Published on: November 21, 2019

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使用双材料阵列扩大金属元表面的等离子光谱范围.

M Dewynter1, A Sraj1, J Loze1

  • 1L2n, CNRS UMR7076, Université de Technologie de Troyes, 10000 Troyes, France.

Nano letters
|February 2, 2026
PubMed
概括

这项研究探讨了双金属等离子体纳米粒子阵列,展示了宽带表面晶格共振的新机制. 这种金和等离子体反应的混合化为先进的传感和光子学应用提供了新的可能性.

关键词:
合金合金的使用情况.黄金 黄金 黄金 黄金 黄金metasurfaces 是一个表层.塑制剂的使用方法表面格子共振的表面格子共振.

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Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces
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Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces

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Synthesis of a Water-soluble Metal–Organic Complex Array
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Synthesis of a Water-soluble Metal–Organic Complex Array

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相关实验视频

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Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures
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Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces
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Synthesis of a Water-soluble Metal–Organic Complex Array
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科学领域:

  • 塑学和纳米光子学
  • 材料科学 材料科学 材料科学
  • 光学工程是指光学工程.

背景情况:

  • 等离子纳米粒子呈现局部表面等离子共振 (LSPR),其光谱特征取决于尺寸,形状和材料.
  • 定期排列的纳米粒子可以支持与雷利异常 (RA) 结合的衍射模式.
  • LSPR和RA的合导致表面晶格共振 (SLR),为传感和光发射的应用提供强大的场限和增强的散射.

研究的目的:

  • 为了研究双金属纳米粒子阵列,特别是金和的棋盘排列.
  • 展示和描述双金属系统中不同等离子体反应的杂交产生的宽带表面格子模式.
  • 通过雷利异常来探索金和双极共振之间的以前未报告的合机制.

主要方法:

  • 金和纳米颗粒的棋盘阵列的制造和表征.
  • 数字模拟以建模等离子体反应和共振合.
  • 对光学属性的实验测量,包括散射和吸收光谱.

主要成果:

  • 在金双金属阵列中展示宽带表面格子模式.
  • 黄金和二极共振之间的杂交的观察.
  • 通过近红外的相同雷利异常结合的证据,超出了的典型等离子范围.

结论:

  • 双金属纳米粒子阵列提供了一条新的途径,通过等离子体反应混合化实现宽带表面晶格共振.
  • 通过金系统中的雷利异常来证明的合机制为高性能等离子体设备开辟了道路.
  • 这些发现对开发用于传感,光子学和电信的先进材料具有重大意义.