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Quadrilateral common-path time modulation interference spectrum imaging device and method

A technology of interferometric spectral imaging and time modulation, applied in the optical field, can solve the problem of inability to retain the common optical path splitting technology, and achieve the effect of overcoming poor stability, high flux, and strong anti-interference ability.

Active Publication Date: 2022-07-12
WUHAN UNIV
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Problems solved by technology

[0004] The present invention provides a quadrilateral common optical path time-modulated interference spectrum imaging device and method to solve the problem that the quadrilateral common optical path interference spectrum imaging device in the prior art cannot not only retain the advantages of the common optical path spectroscopic technology, but also obtain high spectral resolution.

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  • Quadrilateral common-path time modulation interference spectrum imaging device and method

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Embodiment 1

[0032] Embodiment 1 provides a quadrilateral co-optical path time modulation interference spectroscopy imaging device, comprising: a quadrilateral co-optical path interferometer, the quadrilateral co-optical path interferometer is an asymmetric structure, and a A moving mirror scanning mechanism with variable optical path difference, the quadrilateral common optical path time modulation interference spectroscopy imaging device works in a staring observation mode.

[0033] Among them, see figure 1 , the quadrilateral common optical path interferometer includes a transflective beam splitter 1, a first plane mirror 2, a second plane mirror 3, a third plane mirror 4, a first optical path adjustment component and a second optical path Adjustment assembly; the first optical length adjustment assembly and the second optical length adjustment assembly are combined to form the moving mirror scanning mechanism, and the first optical length adjustment assembly and the second optical leng...

Embodiment 2

[0058] Embodiment 2 provides a quadrilateral co-optical path time-modulation interference spectroscopy imaging method, which is implemented by using the quadrilateral co-optical path time-modulation interference spectroscopy imaging device provided in Embodiment 1, and is configured in a quadrilateral co-optical path interferometer to generate a time-dependent spectral imaging method. The moving mirror scanning mechanism with variable optical path difference enables the quadrilateral common optical path time modulation interference spectroscopy imaging device to work in the staring observation mode.

[0059] A specific method corresponding to the apparatus of Embodiment 1 is provided below.

[0060] A quadrilateral common optical path time modulation interference spectroscopy imaging method, comprising the following steps:

[0061] Step 1. The target light becomes parallel light after passing through the front assembly and is incident on the quadrilateral common optical path i...

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Abstract

The invention belongs to the technical field of optics, and discloses a quadrilateral common-path time modulation interference spectrum imaging device and method. The quadrilateral common-path time modulation interference spectrum imaging device works in a staring observation mode by arranging a moving mirror scanning mechanism used for generating an optical path difference changing along with time in a quadrilateral common-path interferometer. According to the invention, the quadrilateral common-path interference spectrum imaging device can maintain the advantages of a common-path light splitting technology and obtain high spectral resolution.

Description

technical field [0001] The invention belongs to the technical field of optics, and more particularly, relates to a quadrilateral co-optical path time modulation interference spectrum imaging device and method. Background technique [0002] Interference spectroscopy (imaging) technology is based on the principle of interferometric spectroscopy, and is an important type of technology in optical detection technology and spectral imaging technology. There are three main types of interference spectroscopy (imaging) techniques that have emerged: one is a temporal modulation type (dynamic) based on a Michelson interferometer; one is a spatial modulation type (static) based on a transverse shear interferometer; the other is the same It is a spatiotemporal joint modulation type (static) based on a transverse shear interferometer. Based on these technologies, a variety of interference spectroscopy (imaging) instruments have appeared one after another, but they often have their own sh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01J3/02G01J3/06G01J3/28G01J3/45
CPCG01J3/2823G01J3/45G01J3/0208G01J3/0237G01J3/0205G01J3/0291G01J3/06G01J3/4535G01J3/021G01J2003/062G01J2003/064G01J2003/4538
Inventor 魏儒义
Owner WUHAN UNIV
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