相关实验视频
Updated: Jun 9, 2026
10:17
20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
Published on: July 12, 2017
Pb2B5O9I:一种化酸,具有强烈的第二波生成
Yi-Zhi Huang1, Li-Ming Wu, Xin-Tao Wu
1Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, PR China.
Journal of the American Chemical Society
|August 27, 2010
概括
一种新的酸材料,Pb(2) B(5) O(9) I,具有特殊的非线性光学特性,为先进的光学应用提供强大的第二和生成 (SHG) 响应和广泛的透明度.
科学领域:
- 材料科学 材料科学 材料科学
- 固态化学 固态化学
- 非线性光学是非线性光学.
背景情况:
- 酸盐材料对于非线性光学至关重要.
- 开发具有增强性能的新酸盐是一个正在进行的研究领域.
- 具有高二生成 (SHG) 的相匹配材料非常受欢迎.
研究的目的:
- 为了合成和描述一种新型的五酸盐材料,Pb(2) B(5) O(9) I.I.
- 为了研究其非线性光学特性的起源.
- 评估其在光学应用中的潜力.
主要方法:
- 合成Pb{2) B{5) O{9) I.I. 的合成
- 粉末SHG测量. 粉末SHG测量.
- 紫外-Vis-NIR传输光谱学. 紫外-Vis-NIR传输光谱学. 这是一个很好的方法.
- 密度函数理论 (DFT) 的计算.
主要成果:
- 已经成功合成了Pb(2)B(5)O(9)I.
- 它在已知的酸盐中表现出最大的粉末SHG反应 (约. 这是KDP的13.5倍).
- 该材料显示了从近紫外线到中红外线区域的透明度.
- DFT的计算证实了Pb(2+) 单对电子和I(-) 电子阴性在观察到的SHG特性中的作用.
结论:
- Pb(2)B(5)O(9)I是一种有前途的相匹配非线性光学材料.
- 它的独特结构和电子特性导致了特殊的SHG性能.
- 这些发现为基于酸盐的先进光学材料的设计原则提供了洞察力.
相关概念视频
03:24Hybridization of Atomic Orbitals I
The mathematical expression known as the wave function, ψ, contains information about each orbital and the wavelike properties of electrons in an isolated atom. When atoms are bound together in a molecule, the wave functions combine to produce new mathematical descriptions that have different shapes. This process of combining the wave functions for atomic orbitals is called hybridization and is mathematically accomplished by the linear combination of atomic orbitals. The new orbitals that...
03:51Molecular Orbital Theory II
Molecular Orbital Energy Diagrams
01:21IR Absorption Frequency: Hybridization
Hydrocarbons such as alkanes, alkenes, and alkynes show characteristic C–H stretching absorption bands. These IR stretching frequencies depend on the hybridization of the involved carbon atom and can be explained in terms of the s character of each hybridized atomic orbital.
Among the sp, sp2, and sp3 hybridized orbitals, sp orbitals have the maximum s character (50%). Consequently, the electrons are held more closely to the nucleus, resulting in stronger and shorter C–H bonds that stretch at a...
Among the sp, sp2, and sp3 hybridized orbitals, sp orbitals have the maximum s character (50%). Consequently, the electrons are held more closely to the nucleus, resulting in stronger and shorter C–H bonds that stretch at a...
03:35Hybridization of Atomic Orbitals II
sp3d and sp3d 2 Hybridization
01:23IR Spectrum Peak Broadening: Hydrogen Bonding
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 hydrogen bonding...
However, the extent of hydrogen bonding influences the observed stretching frequency and band broadening. Intermolecular or intramolecular hydrogen bonding...