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相关概念视频

Atomic Absorption Spectroscopy: Radiation and Light Sources01:13

Atomic Absorption Spectroscopy: Radiation and Light Sources

Atomic absorption spectroscopy (AAS) relies on the Beer-Lambert law, which requires that the radiation source emits a narrow range of wavelengths to match the absorption characteristics of the analyte atom. The primary criteria for choosing an appropriate radiation source in AAS is to provide a precise and intense emission at specific wavelengths that will allow accurate detection of the analyte.
Two common narrow-range 'line' sources used in AAS are hollow-cathode lamps (HCLs) and...
Atomic Emission Spectroscopy: Instrumentation01:22

Atomic Emission Spectroscopy: Instrumentation

The instrumentation of atomic emission spectrometry (AES) involves various components, including atomization devices that convert samples into gas-phase atoms and ions. There are two main types of atomization devices: continuous and discrete atomizers.  Continuous atomizers, like plasmas and flames, introduce samples in a constant stream, while discrete atomizers inject individual samples using syringes or autosamplers. The most common discrete atomizer is the electrothermal atomizer.
Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation01:26

Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation

Inductively coupled plasma (ICP) is the common plasma source used in atomic emission spectroscopy (AES), a technique that detects and analyzes various elements in a sample. This method is often called inductively coupled plasma atomic emission spectroscopy (ICP-AES).
There are three main types of inductively coupled plasma atomic emission spectroscopy  (ICP-AES) instruments: sequential, simultaneous multichannel, and Fourier transform instruments, with the latter being less commonly used.

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相关实验视频

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Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping
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在大型造厂光子学上调的量子发射器.

Hugo Larocque1, Mustafa Atabey Buyukkaya2, Carlos Errando-Herranz3,4

  • 1Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA. hlarocqu@mit.edu.

Nature communications
|July 10, 2024
PubMed
概括

研究人员将半导体量子点集成到光子电路中,以进行可扩展的量子信息处理. 这种混合方法可以通过先进的半导体制造来实现量子系统的可编程控制.

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Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source
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相关实验视频

Last Updated: Jun 25, 2026

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Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping

Published on: June 3, 2015

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科学领域:

  • 量子信息科学与技术 量子信息科学与技术
  • 半导体量子系统 半导体量子系统
  • 光子集成电路的光子集成电路.

背景情况:

  • 用单个光子和原子控制大型量子系统对于量子信息科学至关重要.
  • 在绝缘体上的光子集成电路提供先进的光学控制,但缺乏原子系统集成.
  • 与光子电路集成可调节的原子量子系统仍然是一个重大挑战.

研究的目的:

  • 为了克服将原子量子系统与光子集成电路集成的挑战.
  • 开发一个用于可扩展量子信息处理的混合平台.
  • 为了实现可控制的单光子发射和波长可调性在一个造厂兼容的过程中.

主要方法:

  • InAs/InP微芯片与半导体量子点单光子发射器的混合集成.
  • 使用先进的在绝缘体上的光子集成电路,在300毫米的造工艺中制造.
  • 通过共振光实现单光子发射.

主要成果:

  • 成功将量子点发射器混合集成到光子电路中.
  • 通过共振光学证明单光子发射.
  • 实现了量子发射器可扩展的发射波长可调性.

结论:

  • 开发的混合平台使光子和量子系统的联合控制成为可能.
  • 这种方法为在领先的半导体造厂生产的可编程量子信息处理器铺平了道路.
  • 混合一体化的进步解决了可扩展量子技术的关键挑战.