Dividing amplitude off-axis x-ray holograph device

An X-ray, off-axis technology, used in measurement devices, analysis materials, material analysis using radiation, etc., can solve problems such as insufficient resolution, and achieve high academic value and application prospects.
CN1624461AInactive Publication Date: 2005-06-08SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
Publication Date
2005-06-08
Estimated Expiration
Not applicable · inactive patent

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Abstract

A framing off-axis X-ray holographic apparatus has the characteristics that it includes quasi-monochromatic X ray source, grating, the first reflector, the second reflector, X-ray wave zone plate and recording medium, a grating is installed on the output optical path of quasi-monochromatic X-ray source, dividing the X ray to be A and B light beam, the A bight beam is to be referential beam after being reflected by the first reflector and the B light beam is to be subject beam through a subject to be measured after being reflected by second reflector, then the two beams meet together and are recorded by medium through X ray wave zone plate.
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Description

technical field

[0001] The invention relates to an X-ray holographic device, in particular to a sub-amplitude off-axis X-ray holographic device, which has high academic value and application prospect. Background technique

[0002] In 1949, Gabor invented holography. Due to the lack of a high-brightness coherent light source, it has been in a silent state, and the recording method also stays in the coaxial method. Due to the influence of twin images, the image quality is also very poor.

[0003] The advent of the laser in 1960 provided an ideal coherent light source for holography. In 1962, Leith and others used a very simple method - off-axis holography, which eliminated the influence of twin images very well. In Leith in 1964, they proposed the concept of diffuse illumination holography. Previously, all holograms produced were holograms of transparent objects, which were often almost recognizable shadow images of that object.

[0004] When an object is diffusely illumina...

Claims

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