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Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation01:26

Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation

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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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Updated: May 5, 2026

Optical Trapping of Nanoparticles
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Optical Trapping of Nanoparticles

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新型APD阵列配置,以改善检测区域和频率响应.

Xuan Zeng1, Xuzhen Yu1, Hewei Zhang1

  • 1Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China.

Sensors (Basel, Switzerland)
|April 28, 2025
PubMed
概括
此摘要是机器生成的。

新的雪崩光二极管 (APD) 阵列结构增强了检测区域和带宽. 电感器集成将带宽提高到1.21GHz,提供更好的SNR和更低的功耗.

关键词:
雪崩 photodiode 的使用情况收益 达到峰值 达到峰值大型检测区域的大型检测区域信号与噪声的比率.

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科学领域:

  • 光电学是指光电子产品.
  • 半导体设备 半导体设备
  • 光子学是指光子学的使用方法.

背景情况:

  • 传统的光电探测器在检测区域和带宽之间面临着一个权衡.
  • 现有的雪崩光二极管 (APD) 阵列设计在增加检测面积时经常会损害带宽.

研究的目的:

  • 引入两种新的APD阵列结构,以增强检测区域和带宽.
  • 为了克服传统光电探测器设计的局限性.

主要方法:

  • 对 APD 阵列带宽的参数影响的理论模拟.
  • 在PCB板上制造的2x2APD阵列的实验验证.
  • 电感器的集成以增强阵列带宽.

主要成果:

  • 一个APD阵列结构实现了780MHz的带宽 (1.41倍增加).
  • 第二个APD阵列结构达到1.21 GHz (1.35倍增长).
  • 新型结构保持了高带宽,同时扩大了检测区域.

结论:

  • 开发的APD阵列结构成功地同时增强了检测区域和带宽.
  • 与结构1相比,由于噪声较低,信号噪声比 (SNR) 高,功耗较低,建议采用结构2.
  • 这些发现为高性能应用的光电探测器技术带来了重大进步.