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相关概念视频

Determination of Crystal Structures01:29

Determination of Crystal Structures

135
In the late 1800s, the revelation that light extended beyond visible wavelengths led to the discovery of X-rays by Wilhelm Roentgen. Recognized as high-energy electromagnetic radiation with short wavelengths, X-rays prompted exploration into their interaction with crystals. Max von Laue proposed in 1912 that the periodic arrangement of atoms, ions, or molecules in crystals would cause them to diffract X-rays, a hypothesis confirmed through experiments with copper sulfate and zinc sulfide...
135

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Proposed experiment to measure nonlinear optical susceptibilities in the saturated regime.

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相关实验视频

Updated: May 2, 2026

Studying Soft-matter and Biological Systems over a Wide Length-scale from Nanometer and Micrometer Sizes at the Small-angle Neutron Diffractometer KWS-2
11:27

Studying Soft-matter and Biological Systems over a Wide Length-scale from Nanometer and Micrometer Sizes at the Small-angle Neutron Diffractometer KWS-2

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一个计量近室温光子数解析探测器:一个设计研究

Zachary H Levine1, Joshua C Bienfang1, Alan L Migdall1,2

  • 1Quantum Measurement Division, National Institute of Standards and Technology, Gaithersburg, MD 20899-8410, USA.

Sensors (Basel, Switzerland)
|September 13, 2025
PubMed
概括
此摘要是机器生成的。

本研究介绍了一种非低温光学探测器,用于精确的光子计数. 半导体设备在-10°C下工作,可以高精度和低误差率来分辨光子脉冲.

关键词:
低的错误率 低的错误率 低的错误率光子计数计数的光子计数室温器件是一个室温器件.

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Fabrication and Testing of Photonic Thermometers
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A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

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相关实验视频

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科学领域:

  • 光子学和半导体物理 半导体物理
  • 计量学和仪器仪表技术

背景情况:

  • 精确的光子计数对于各种科学应用至关重要.
  • 现有的光子探测器通常需要冷冷却,这限制了它们的实用性.

研究的目的:

  • 描述和建模一种用于计量学光子计数的新型非低温光学探测器.
  • 预测基于半导体的光子探测器在-10°C下运行的性能.

主要方法:

  • 开发用于光子检测的半导体设备模型.
  • 模拟光学损失,电子损失和噪声源.
  • 基于模拟和经验数据的整体设备性能估计.

主要成果:

  • 拟议的探测器设计在-10°C下运行,避免了冷的要求.
  • 预计能够分辨高达10光子的光子脉冲.
  • 在输入光子数中估计有2%的误差率.

结论:

  • 开发的非低温光学探测器显示了准确的光子计数的前景.
  • 该设计为冷光子检测系统提供了切实可行的替代方案.
  • 通过实验测试进行进一步验证是有必要的.