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相关概念视频

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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Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
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高速可重新配置的时空光束扫描,通过频率编码的光学相位阵列被启用.

Yuqiu Zhang, Hongxiang Chang, Zhongquan Nie

    Optics letters
    |February 14, 2025
    PubMed
    概括

    我们推出了一种新的频率编码光学相位阵列 (OPA),用于高速,可重新配置的激光束扫描. 这种方法利用定制的频率偏差来实现动态时空光束控制,增强了LIDAR和光通信中的应用.

    科学领域:

    • 光学和光子学 在光学和光子学.
    • 激光技术 激光技术 激光技术
    • 梁方向控制 梁方向控制 梁方向控制

    背景情况:

    • 非机械激光束扫描对于LIDAR和光通信等应用至关重要.
    • 目前的方法在响应时间方面面临限制,这阻碍了高速和可重新配置的光束控制.
    • 实现动态时空光束扫描需要克服光学元件响应时间限制.

    研究的目的:

    • 为高速,可重新配置的动态激光束扫描提出一种新的概念.
    • 为了实现连续和多方向光束转向能力.
    • 克服传统非机械束扫描技术的局限性.

    主要方法:

    • 开发一个频率编码的光学相位阵列 (OPA).
    • 在OPA阵列元件上实现定制的频率偏差.
    • 在需要时编码用于光束控制的频率和相位偏差.

    主要成果:

    • 动态时空光束与连续扫描的演示.
    • 建立扫描速度和频率偏差之间的线性关系.
    • 实现了多向和可定制的结构化时空光束扫描.

    结论:

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    • 拟议的频率编码OPA可实现高速可重新配置的动态光束扫描.
    • 这种方法提供了连续的,多向的,可定制的光束转向.
    • 在先进的激光扫描系统中,高功率输出的潜力.