A zero-suppression interferometric spectrometer based on coherent dispersion technology

A spectrometer and interferometer technology, which is applied in the field of spectral imaging devices, can solve the problems of incapable of weak planetary spectral characterization, difficulty in obtaining planetary spectra, etc., and achieves the effects of simple and convenient use and high stability.

Active Publication Date: 2021-06-22
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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Problems solved by technology

[0005] The present invention aims to solve the technical problem that it is difficult to obtain a clearer planetary spectrum in the prior art, resulting in the inability to carry out spectral characterization of faint planets, and provides a zero-suppression interferometric spectrometer based on coherent dispersion technology

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  • A zero-suppression interferometric spectrometer based on coherent dispersion technology

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Embodiment Construction

[0046] In order to make the purpose, advantages and features of the present invention clearer, a zero-suppression interferometric spectrometer based on coherent dispersion technology proposed by the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. The advantages and features of the present invention will be more clear from the following specific embodiments. It should be noted that: the drawings are all in a very simplified form and use inaccurate proportions, which are only used to facilitate and clearly illustrate the purpose of the embodiments of the present invention; secondly, the structures shown in the drawings are often actual structures part.

[0047] A kind of zero-suppressing interference spectrometer based on coherent dispersion technology of the present invention, such as figure 1 As shown, including a light source, namely a star, the star emits the first incident ray IN1 and the s...

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Abstract

The invention discloses a zero-suppressing interference spectrometer based on coherent dispersion technology, aiming to solve the technical problem that it is difficult to obtain a clearer planetary spectrum in the prior art, resulting in the inability to perform spectral characterization of faint planets. The invention includes A light source unit, an interferometer, a dispersion unit, and a photodetector are arranged in sequence along the optical path; the light source unit emits collimated incident light; the interferometer divides the incident light into a first outgoing light and a second outgoing light; there are two dispersion units, The first outgoing light and the second outgoing light are respectively decomposed into spectra to form two interference fringes; there are two photodetectors, and the two interference fringes are respectively received to obtain two interference fringe images. The zero-suppressing interference spectrometer based on the coherent dispersion technology of the present invention can not only be used to detect planets, but also can obtain clearer planetary spectra, and perform spectral characterization on faint planets.

Description

technical field [0001] The invention relates to a spectral imaging device, in particular to a zero-suppressing interference spectrometer based on coherent dispersion technology. Background technique [0002] Spectral imaging technology combines spectral technology and imaging technology, and has been widely used in agriculture, medicine, aerospace, environmental monitoring, atmospheric detection, astronomical observation and other fields. Interference and dispersion technology are the most important technologies applied in the field of spectral imaging, but usually the two technologies are used separately, and only in the case of wind measurement, measurement of radial velocity of stars or planets, etc., will the two technologies be combined These techniques are combined to achieve a more ideal measurement accuracy. [0003] In the field of exoplanet detection, although indirect detection techniques (such as the radial velocity method) are the most successful methods today....

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01J3/28G01J3/45G01J3/02G01N21/25
CPCG01J3/0243G01J3/2823G01J3/45G01N21/255
Inventor 胡柄樑狄腊梅魏儒义乔念祖陈莎莎王鹏冲
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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