相关实验视频
Updated: Mar 17, 2026
06:48
A Multimodal Wide-Field Fourier-Transform Raman Microscope
Published on: December 30, 2025
659
拉曼显微镜用于超快激光写作中的结构指示
Xingrui Cheng1, Eugenio Picheo2, Zhixin Chen1,2
1Department of Engineering Science, University of Oxford, Oxford, UK.
Small methods
|March 16, 2026
概括
拉曼显微光谱仪监测五秒激光制造钻石设备. 特定拉曼线的耗尽预测电阻,提高了激光微型制造的可扩展性和产量.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术 纳米技术
- 频谱学是一种光谱学.
背景情况:
- 五秒激光微型制造提供了多功能设备的创建,但由于有限的实时监控,面临着可扩展性挑战.
- 准确的现场性能指标对于优化激光制造工艺至关重要.
研究的目的:
- 证明拉曼显微镜作为一种非破坏性工具,用于评估钻石中激光打印的石墨电极的电性能.
- 识别可靠的与设备电阻相关的光谱指标,以改善制造控制.
主要方法:
- 结合超光谱拉曼映射与钻石中激光制造的石墨电极的现场电测.
- 分析了光谱特征,专注于1332 cm-1 sp3拉曼线,以与电阻相关联.
- 在复杂的制造场景中,应用过光谱分离,用于在没有标签的情况下识别光谱特征.
主要成果:
- 1332 cm-1 sp3 拉曼线的耗尽被确定为电极电阻的单调和强大的预测指标.
- 这种光谱特征与电性能相比,与其他常用的拉曼特征相比,具有更好的相关性.
- 超光谱脱杂成功识别了相关的光谱标记,即使传统的拉曼信号不那么明显.
结论:
- 拉曼显微镜,特别是监测1332厘米-1sp3线,为评估钻石中的激光写字石墨电极提供了实际的现场度量.
- 开发的方法提高了 femtosecond激光微型制造中的控制和可预测性,为规格驱动的工艺铺平了道路.
- 这种方法可以适应各种主机材料和功能,扩大其在先进制造中的适用性.
相关概念视频
01:20Raman Spectroscopy: Overview
2.2K
The underlying principle of Raman spectroscopy is based on the interaction between light and matter, specifically molecules' inelastic scattering of photons. When a monochromatic beam of light, typically from a laser source, interacts with a sample, most scattered light has the same frequency as the incident light. This is known as Rayleigh scattering.
However, a small fraction of the scattered light exhibits a frequency shift due to the exchange of energy between the incident photons and...
However, a small fraction of the scattered light exhibits a frequency shift due to the exchange of energy between the incident photons and...
2.2K
01:26Raman Spectroscopy Instrumentation: Overview
1.6K
A conventional Raman spectrophotometer includes a laser source, a sample holding system, a wavelength selector, and a detector.
The monochromatic laser source, typically using visible or near-infrared radiation, generates a highly focused beam of light. This light interacts with the molecules of the sample, scattering some of the light. Liquid and gaseous samples are usually tested in ordinary glass capillaries, while solids can be analyzed as powders packed in capillaries or as potassium...
The monochromatic laser source, typically using visible or near-infrared radiation, generates a highly focused beam of light. This light interacts with the molecules of the sample, scattering some of the light. Liquid and gaseous samples are usually tested in ordinary glass capillaries, while solids can be analyzed as powders packed in capillaries or as potassium...
1.6K