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相关实验视频

Updated: Jun 28, 2025

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

Published on: November 30, 2012

连续波单层WS2激光用于光子条形码.

Haodong Cheng^1,2,3, Junyu Qu^1,2, Wangqi Mao³

¹Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, College of Materials Science and Engineering, Hunan University, Changsha 410082, China.

Nanomaterials (Basel, Switzerland)

|April 12, 2024

概括

研究人员使用连续波送二硫化 (WS2) 微激光器开发了高容量的光子条形码. 这一创新增强了信息安全和防伪,简化了检测和大规模编码潜力.

关键词:

打击假冒和伪造的行为.连续波送的激光是持续波的激光.具有很高的编码能力.微/纳米光子条形码单层WS2薄膜是一种单层WS2薄膜.

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相关实验视频

Last Updated: Jun 28, 2025

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

Published on: November 30, 2012

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

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Published on: May 30, 2014

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source

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Published on: April 4, 2017

科学领域:

光子学和材料科学材料科学
纳米技术和光电子学

背景情况:

微/纳米光子条形码提供高安全性,但在编码能力和检测方面存在局限性.
传统的方法通常需要昂贵的脉冲激光器,并且受到广泛的发射带宽的影响.

研究的目的:

开发高容量的光子条形码标签,以加强信息安全和防伪.
通过新型材料和激光设计克服传统光子条形码的局限性.

主要方法:

使用蒸汽沉积生长了面积大,高质量的单层二硫化 (WS2) 薄膜.
通过将WS2薄膜与外部空洞相合而构建的光学制微激光器.
使用各种尺寸的紧密包装的WS2微激光器进行高密度条形码像素化.

主要成果:

在室温下实现了连续波 (CW) 式激光,具有狭窄的线宽 (~ 0.39 nm) 和低值 (~ 400 W cm-2).
来自WS2微激光器的高密度,不均的多模式激光信号.
一个20像素的标签实现了2.35 × 10^108.8的高编码能力.

结论:

连续波运行和窄线宽激光简化了光子条形码的检测.
这项工作推进了用于信息编码和安全的二维材料微/纳米激光器.
拟议的基于WS2的光子条形码为强大的防伪解决方案提供了一个有前途的平台.