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相关概念视频

IR Spectrometers01:25

IR Spectrometers

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There are two main infrared (IR) spectrophotometers: dispersive IR spectrometers and Fourier transform infrared (FTIR) spectrometers. In a dispersive IR spectrometer, a beam of infrared radiation produced by a hot wire is divided into two parallel equal-intensity beams using mirrors. One beam passes through the sample, while another is a reference beam. The beams then move through the monochromator, which separates the radiations into a continuous spectrum of different frequencies. The...
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Attenuated Total Reflectance (ATR) Infrared Spectroscopy: Overview01:13

Attenuated Total Reflectance (ATR) Infrared Spectroscopy: Overview

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Attenuated total reflectance (ATR) infrared spectroscopy is a powerful analytical technique used to study the composition of materials. It is widely employed in chemistry, materials science, forensic science, and other fields where sample characterization is required. ATR has several advantages over traditional transmission IR spectroscopy, including the requirement of little to no sample preparation and the ability to analyze a wide range of samples.
The ATR process begins by directing a beam...
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相关实验视频

Updated: Jul 22, 2025

High Speed Sub-GHz Spectrometer for Brillouin Scattering Analysis
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对于Fabry-Perot多孔成像光谱仪的干扰仪响应表征算法.

Daniele Picone, Silvère Gousset, Mauro Dalla Mura

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    PubMed
    概括
    此摘要是机器生成的。

    我们开发了一种新的算法,即干扰仪响应表征算法 (IRCA),用于校准超光谱成像设备. 这种方法准确地描述了Fabry-Perot干扰仪的传输率响应,以改善光谱成像.

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    科学领域:

    • 光学和光子学 在光学和光子学.
    • 频谱学是一种光谱学.
    • 图像处理 图像处理

    背景情况:

    • 超光谱成像设备对捕获详细的光谱信息有很高的需求.
    • 干涉测谱光谱成像系统,特别是使用光圈分割的系统,提供紧的快照获取功能.
    • 这些系统需要精确的校准才能获得准确的性能.

    研究的目的:

    • 介绍一个强大的算法来表征多孔径成像光谱仪的传输率响应.
    • 为这些设备提出一个精细的图像形成模型,考虑到不同的精致模式.
    • 在实验原型上验证开发的表征算法.

    主要方法:

    • 干扰仪响应表征算法 (IRCA) 是一个三步程序.
    • 它描述了基于Fabry-Perot的多孔径成像光谱仪的传导率响应.
    • 该算法使用单色光源和非线性回归来估计参数.

    主要成果:

    • IRCA算法成功地描述了干扰仪的响应.
    • 拟议的图像形成模型适用于不同细度级别的参数估计.
    • 在四个Image SPectrometer On Chip (ImSPOC) 原型上进行实验验证,证实了算法的性能.

    结论:

    • IRCA提供了一种可靠的方法,用于校准干扰度超谱成像系统.
    • 开发的图像形成模型提高了参数估计的准确性.
    • 这项工作有助于可靠地部署紧的快照超光谱成像设备.