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相关概念视频

Attenuated Total Reflectance (ATR) Infrared Spectroscopy: Overview01:13

Attenuated Total Reflectance (ATR) Infrared Spectroscopy: Overview

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Attenuated total reflectance (ATR) infrared spectroscopy is a powerful analytical technique used to study the composition of materials. It is widely employed in chemistry, materials science, forensic science, and other fields where sample characterization is required. ATR has several advantages over traditional transmission IR spectroscopy, including the requirement of little to no sample preparation and the ability to analyze a wide range of samples.
The ATR process begins by directing a beam...
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Total Internal Reflection Fluorescence Microscopy01:05

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Total internal reflection fluorescence microscopy or TIRF is an advanced microscopic technique used to visualize fluorophores in samples close to a solid surface with a higher refractive index, such as a glass coverslip. TIRF only allows fluorophores in proximity to the solid surface to be excited. When light from a medium with a lower refractive index (such as air) hits the glass coverslip at a critical angle, the light undergoes total internal reflection stead of passing through the glass.
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相关实验视频

Updated: Jun 26, 2025

High-Throughput Total Internal Reflection Fluorescence and Direct Stochastic Optical Reconstruction Microscopy Using a Photonic Chip
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High-Throughput Total Internal Reflection Fluorescence and Direct Stochastic Optical Reconstruction Microscopy Using a Photonic Chip

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强大的光学物理非克隆功能基于可携带身份验证的总内部反射.

Zhiyuan Wang1,2,3, Hu Wang1,2,3, Pengxiang Wang1,2,3

  • 1Laboratory of Thin Film Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, P. R. China.

ACS applied materials & interfaces
|May 14, 2024
PubMed
概括
此摘要是机器生成的。

本研究引入了使用全内反射 (TIR-PUF) 和聚合物微球的强大的光学物理不可克隆功能 (PUF). 新的TIR-PUF为便携式身份验证系统提供了高安全性和环境稳定性.

关键词:
打击假冒和伪造的行为.环境稳定性 环境稳定性物理上的不可克隆的功能.便携性 便携性的便携性总的内部反射总的内部反射.

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Patterning via Optical Saturable Transitions - Fabrication and Characterization
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Patterning via Optical Saturable Transitions - Fabrication and Characterization

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Agarose-based Tissue Mimicking Optical Phantoms for Diffuse Reflectance Spectroscopy
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科学领域:

  • 光电学是指光电子产品.
  • 材料科学 材料科学 材料科学
  • 密码学 密码学 密码学 密码学

背景情况:

  • 目前的光学物理不可克隆功能 (PUF) 依赖于具有固有的强度问题的材料.
  • 制造随机性是基于PUF的加密原体的关键.
  • 需要稳定可靠的光学PUF解决方案.

研究的目的:

  • 开发一种使用总内部反射 (TIR) 的环境稳定的光学PUF.
  • 为了提高加密应用的安全性和可靠性.
  • 为了证明便携式身份验证系统的可行性.

主要方法:

  • 通过随机分布的聚合物微球扰乱总内部反射,构建了一个TIR-PUF.
  • 优化聚合物溶液度,以提高位统一性和编码能力.
  • 开发了一种代的捆绑程序,将响应图像转换为编码的密钥.

主要成果:

  • 实现了高编码能力 (2^370) 和极低的身份验证错误概率 (1.614 × 10^-23).
  • 在低的Hamming内距离 (0.068) 显示出出色的读出可靠性.
  • 在超声波洗,高温,紫外线照射和化学暴露下证实了显著的环境稳定性.

结论:

  • 与现有的光学PUF相比,开发的TIR-PUF提供了卓越的环境稳定性和安全性.
  • 该系统的性能表明它适合用于实用,便携式身份验证应用程序.
  • 这项工作为强大,低功耗和无线身份验证解决方案铺平了道路.