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Spectrum reconstruction method and spectrometer

A spectrum reconstruction and spectrometer technology, applied in the field of spectrometer, can solve problems such as low signal-to-noise ratio

Pending Publication Date: 2022-06-28
XIAMEN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Both types of spectroscopic techniques have low signal-to-noise ratios

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  • Spectrum reconstruction method and spectrometer
  • Spectrum reconstruction method and spectrometer
  • Spectrum reconstruction method and spectrometer

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Embodiment Construction

[0032] The present disclosure will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the related content, but not to limit the present disclosure. In addition, it should be noted that, for the convenience of description, only the parts related to the present disclosure are shown in the drawings.

[0033] It should be noted that the embodiments of the present disclosure and the features of the embodiments may be combined with each other unless there is conflict. The technical solutions of the present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0034] Unless otherwise stated, the illustrated exemplary embodiments / embodiments are to be understood as exemplary features providing various details of some ways in which the technical concept of the prese...

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Abstract

The present disclosure provides a spectrum reconstruction method, comprising: generating a two-dimensional Hadamard mask sequence along a time dimension, each two-dimensional Hadamard mask comprising a wavelength dimension and a coefficient dimension; detecting an optical signal passing through the two-dimensional Hadamard mask sequence; and analyzing the optical signal to reconstruct a spectrum to be measured wherein the two-dimensional Hadamard mask comprises a plurality of columns of wavelength dimension, each column corresponding to a different Hadamard coefficient, and having a different column rate value in the time dimension. The invention further provides a spectrograph.

Description

technical field [0001] The present disclosure relates to a spectral reconstruction method and a spectrometer. Background technique [0002] Spectrometer is an important technique capable of detecting the properties of materials by analyzing their interaction with light in a certain wavelength range. As an indispensable tool in material analysis, according to its working principle, the current spectrometers can be mainly divided into four categories. [0003] The first type of dispersive spectrometer, in which dispersive gratings map light of different wavelengths at different angles in space, and are measured sequentially by point detectors or simultaneously measured by one-dimensional detectors. The second type is based on narrow-band tunable filters, such as Fabry-Perot spectrometers, acousto-optic tunable filters, liquid crystal tunable filters, etc. Usually, this spectrometer only measures a very narrow wavelength range at a time. These two types of spectroscopic techn...

Claims

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Application Information

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IPC IPC(8): G01N21/01G01N21/31
CPCG01N21/01G01N21/31G01J3/0208G01J3/0229G01J3/2846G01J2003/285
Inventor 刘泉章毅
Owner XIAMEN UNIV