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相关概念视频

IR Spectrometers01:25

IR Spectrometers

1.1K
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...
1.1K
X-ray Crystallography02:18

X-ray Crystallography

23.9K
The size of the unit cell and the arrangement of atoms in a crystal may be determined from measurements of the diffraction of X-rays by the crystal, termed X-ray crystallography.
Diffraction
Diffraction is the change in the direction of travel experienced by an electromagnetic wave when it encounters a physical barrier whose dimensions are comparable to those of the wavelength of the light. X-rays are electromagnetic radiation with wavelengths about as long as the distance between neighboring...
23.9K

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On-Chip Crystallization and Large-Scale Serial Diffraction at Room Temperature
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小而简单:下一代微型衍射式光谱仪与计算重建算法.

Markus Suta1

  • 1Inorganic Photoactive Materials, Faculty of Mathematics and Natural Sciences, Heinrich Heine University Düsseldorf, Düsseldorf, Germany. markus.suta@hhu.de.

Light, science & applications
|May 7, 2024
PubMed
概括

本研究介绍了一种小型化的光谱仪,使用了新的针孔设计和计算算法来重建宽带光谱. 这种方法使得成本效益高,芯片上的光谱仪能够快速获取和高光谱分辨率.

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.
  • 计算成像技术的成像

背景情况:

  • 传统的光谱仪通常涉及复杂的校准,并且很庞大.
  • 微型化和降低成本是光谱仪开发中的关键挑战.
  • 在芯片上的光谱仪需要创新的设计,以获得高效的光谱.

研究的目的:

  • 开发一个超简单的微型光谱仪.
  • 使用新的衍射元件和计算算法重建宽带光谱.
  • 为了实现具有成本效益和高性能的芯片上光谱仪.

主要方法:

  • 使用任意形状的针孔作为唯一的衍射元件.
  • 使用计算重建算法来解释单色辐射的衍射模式.
  • 将针孔和重建集成到小型光谱仪设计中.

主要成果:

  • 从衍射信息成功重建了宽带光谱.
  • 展示了一种光谱仪设计,可以绕过复杂的校准程序.
  • 实现了快速的光谱采集,而没有显著的光谱分辨率损失.

结论:

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  • 拟议的光谱仪设计超简单,小型化,并且具有成本效益.
  • 计算重建算法对这种设计的光谱分析是有效的.
  • 这项技术为先进的芯片上光谱仪铺平了道路.