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相关概念视频

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Inductively coupled plasma–mass spectrometry (ICP–MS) is a highly selective and sensitive technique for accurate elemental analysis. Though the analysis of ICP–MS mass spectra is comparatively straightforward, it is affected by spectroscopic and non-spectroscopic interferences. Spectroscopic interferences arise when the plasma contains ionic species with an m/z value the same as the analyte ion. Spectroscopic interference can be categorized as isobaric, polyatomic ions, and...
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相关实验视频

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Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source
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在3微米的量子纠和干扰.

Zheng Ge1,2, Zhao-Qi-Zhi Han1,2, Fan Yang3

  • 1CAS Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei, Anhui 230026, China.

Science advances
|March 6, 2024
PubMed
概括

研究人员产生了中红外时间能量纠的光子对,这是量子信息技术的关键步骤. 这一突破为中红外量子通信,传感和成像应用提供了新的可能性.

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科学领域:

  • 量子信息科学 量子信息科学
  • 中红外光子学 中红外光子学

背景情况:

  • 中红外 (MIR) 光学范围 (2.525μm) 为生物医学传感,光通信和分子光谱学提供了显著的优势.
  • 将量子信息技术扩展到MIR频段是非常可取的,但仍然不发达.

研究的目的:

  • 在中红外波长频段产生和演示时间能量纠.
  • 为了验证产生的中红外光子的不可区分性和非局部性.

主要方法:

  • 在中红外线中生成时间能量纠的光子对.
  • 使用频率上升转换检测技术.
  • 使用弗朗森型干扰仪观测双光子洪乌曼德尔干扰.

主要成果:

  • 在中红外线3082nm时成功生成时间能量纠的光子对.
  • 证明了Hong-Ou-Mandel干扰,证实了光子不可区分.
  • 验证时间能量纠,证明光子非局部性.

结论:

  • 这项工作代表了中红外量子信息技术的重大进步.
  • 证明的纠对于未来量子通信,精密传感和成像中的应用至关重要.
  • 开辟了探索中红外频谱中的量子现象和技术的新途径.