通过激光氧化诱导的表面的非虹彩但依赖角度的结构颜色
XiaoSong Yu1,2, MingYang Wang1,3, QiLin Jiang1,4
1Hangzhou Institute of Technology, Xidian University, 311200, Hangzhou, China.
Nanophotonics (Berlin, Germany)
|September 2, 2025
概括
研究人员开发了一种新的激光诱导氧化方法, 这种环保技术为防伪和产品设计提供了新的可能性,超越了传统的油墨.
科学领域:
- 材料科学
- 光学学
- 表面工程
背景情况:
- 在产品设计和防伪方面,光学可变的特征至关重要.
- 使用化学墨水的现有方法存在环境缺陷和有限的耐用性.
研究的目的:
- 展示一种新的方法在表面上产生视角依赖的结构颜色.
- 为光学特征提供环保和持久的化学墨水替代品.
主要方法:
- 使用纳米秒激光诱导的氧化, 在上创建周期性排列的阶层结构.
- 使用数值模拟来阐明激光切除,氧化和热辐射的形成机制.
- 调整像点距离和停留时间这样的激光参数来控制结构形态和颜色强度.
主要成果:
- 在上成功生成非虹彩的角度依赖结构颜色.
- 颜色的变化归因于阶层结构的形态差异, 反射光在不同的角度.
- 控制受影响区域和激光诱导过程的强度.
结论:
- 激光诱导的氧化技术提供了一个强大而环保的方法来创造结构色彩.
- 这种方法具有先进的防伪解决方案和新的激光染色应用的巨大潜力.
- 这些发现扩大了基于激光的表面修饰功能光学性能的范围.
相关概念视频
03:02Colors and Magnetism
12.1K
Color in Coordination Complexes
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human...
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human...
12.1K
01:26Variables Affecting Phosphorescence and Fluorescence
3.9K
Fluorescence and phosphorescence are essential phenomena in fields like analytical chemistry, biological imaging, and materials science, where they detect molecular properties and visualize cellular structures. Understanding the variables that influence these luminescent behaviors is crucial for maximizing accuracy and efficiency in their applications. These variables can broadly be grouped into chemical structure, solvent properties, and external conditions, each playing a distinct role in...
3.9K