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Double-sided reflecting moving mirror interferometer

A double-sided mirror and double-sided reflection technology, applied in the field of interferometers, can solve the problems of the large size of the cat-eye moving mirror, the large driving force of the moving mirror, and the poor thermal stability, so as to eliminate the problem of lateral movement of the moving mirror and reduce the driving force. , good thermal stability

Inactive Publication Date: 2010-08-04
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The mass of the cat's eye mirror or the corner reflector mirror is large, and the driving force required for the mirror is large, and the volume of the cat's eye mirror is large and the thermal stability is poor

Method used

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Embodiment Construction

[0022] The invention provides a double-sided reflective moving mirror interferometer. The double-sided reflective moving mirror interferometer includes a beam splitter 1, a plane mirror 2, a double-sided reflective moving mirror 3, a corner reflector 4, and a double-sided mirror drive. System 5 and the detection and collection system; the plane mirror 2 is arranged on the reflection or transmission light path of the beam splitter 1; the corner reflector 4 is arranged on the transmission or reflection light path of the beam splitter 1; the double-sided mirror driving system 5 drives the double The surface reflective moving mirror 3 performs linear reciprocating motion; the double-sided reflective moving mirror 3 is arranged on the reflection light path of the flat mirror 2 and the corner reflector 4; the double-sided reflective moving mirror 3 will be incident on a coated surface of the double-sided reflective moving mirror The incident light is reflected by the plane mirror 2 to...

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Abstract

The invention relates to an interferometer, in particular to a double-sided reflecting moving mirror interferometer, which can solve the inclination and transverse movement problems of a moving mirror, requires a small driving force, can obtain very high spectral resolution and has good heat stability. The interferometer comprises a beam splitter, a planar mirror, a double-sided reflecting moving mirror, an angle reflecting body, a double-sided reflecting mirror driving system and a detecting and collecting system, wherein the beam splitter splits incident light into reflected light and transmitted light; the planar mirror and the angle reflecting body are arranged on two light paths respectively; the double-sided reflecting moving mirror is arranged on reflecting light paths of the planar mirror and the angle reflecting body; the double-sided reflecting moving mirror reflects incident light which enters the double-sided reflecting moving mirror and reflects the incident light reflected by the planar mirror to the beam splitter; and the detecting and collecting system is arranged on an emergent light path which is finally transmitted or reflected by the beam splitter. The double-sided reflecting moving mirror is used, so that the transverse movement problem of the moving mirror is solved; an interference light path is adopted, so that the inclination problem of the moving mirror is solved; and the interferometer has the advantages of simple structure, small volume, light weight and small required driving force.

Description

Technical field [0001] The invention relates to an interferometer, in particular to a double-sided reflective moving mirror interferometer applied to a Fourier transform spectrometer with high spectral resolution. Background technique [0002] The time-modulated Fourier transform spectrometer has the advantages of high spectral resolution, high throughput, multi-channel, etc. It is very suitable for atmospheric remote sensing and ultra-fine spectrum measurement. Its core component is an interference system. The biggest problem that affects the application of Michelson interferometer in Fourier transform spectrometer is the tilt of the plane moving mirror during scanning. [0003] Using cat glasses or corner reflectors instead of flat moving mirrors can solve the tilt problem well. The disadvantage is that a single scanning cat glasses or a single scanning corner reflector has a lateral offset problem. Another method is to use an adaptive correction system, but the higher the resol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01J3/02G01J3/45G02B26/00
Inventor 杨庆华汶德胜赵葆常
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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