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Complex amplitude object reconstruction device based on optical scanning holographic technique

A holographic technology and optical scanning technology, which is applied in the field of complex amplitude object reconstruction devices, can solve problems such as unfavorable technology research and application, high optical path requirements, complex structure, etc., and achieve good biomedical application prospects, easy adjustment, and easy realization. Effect

Active Publication Date: 2015-12-30
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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Problems solved by technology

However, this structure is relatively complicated, requiring an additional Fourier lens, and inserting a pinhole screen after the lens, and the pinhole screen must be placed at the back focal plane to satisfy the Fourier transform relationship, which requires relatively high requirements on the optical path. High, not conducive to the research and application of this technology

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  • Complex amplitude object reconstruction device based on optical scanning holographic technique
  • Complex amplitude object reconstruction device based on optical scanning holographic technique
  • Complex amplitude object reconstruction device based on optical scanning holographic technique

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings and embodiments, but the protection scope of the present invention should not be limited thereby.

[0026] see first figure 1 , figure 1 It is a system principle diagram of the complex amplitude object reconstruction device based on the optical scanning holography technology of the present invention. It can be seen from the figure that Embodiment 1 of the complex amplitude object reconstruction device based on optical scanning holography technology of the present invention comprises a difference frequency laser coherent unit, a two-dimensional scanning unit, a photoelectric information receiving and processing unit, and a computer reconstruction complex amplitude unit. The specific structure is In the laser output direction of the laser 1 is the first beam splitter 2, which divides the incident light into a perspective light path and a reflection light path. Mirror 4, p...

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Abstract

The invention relates to a complex amplitude object reconstruction device based on the optical scanning holographic technique. The complex amplitude object reconstruction device comprises a difference frequency laser coherent unit, a two-dimensional scanning unit, a photoelectric information receiving and processing unit and a computer reconstruction complex amplitude unit; the reconstruction of the complex amplitude object is realized based on the difference frequency scanning technology which is simpler and easy to realize when being compared with the conventional coherent optical scanning holographic technique. The complex amplitude object reconstruction device can be applied to the field of biology microscope, particularly to the field of transparent or weak-absorption biological sample detection, has the advantage of being superior to other biological imaging techniques, can realize coherent-imaging on the premise of ensuring the imaging resolution, can further obtain more information of the sample related to the refractive index, thereby being quite good in the application prospect in biomedicine.

Description

technical field [0001] The invention relates to three-dimensional imaging of coherent objects in the field of biomedicine, in particular to a complex-amplitude object reconstruction device based on optical scanning holography technology. technical background [0002] Optical Scanning Holography (OSH) is a new type of digital holography technology, which was jointly proposed and gradually improved by Professor Ting-Chung Poon of Virginia Tech University and his collaborators, and has received extensive attention in the field of international information optics. At present, the application research on OSH has been carried out in many scientific research fields, and a lot of achievements have been obtained in both theory and experiment. Prior technology (T.-C.PoonandA.Korpel, "Optical transfer function of anacousto-opticheterodyning image processor," Opt. Lett.4, 317-319 (1979)) first proposed the concept of difference frequency coherence for incoherent image processing, which ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03H1/10G03H1/22G03H1/00
Inventor 贾伟周常河余俊杰
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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