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Single-strike sequence holographic imaging system and method

A holographic imaging and sequence technology, applied in the field of holographic imaging, can solve problems such as the difficulty of precise alignment of the probe pulse and the reference pulse, avoid the limitation of spatial resolution and field of view, overcome the walk-off effect, and increase the field of view or space. The effect of resolution

Active Publication Date: 2019-12-27
SHANDONG NORMAL UNIV
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Problems solved by technology

In addition, in the existing single-click sequence holographic imaging (SSSHI) method, the on-axis detection pulse sequence and the off-axis reference pulse sequence must be generated by two different pulse sequence generators, which gives the detection pulse and reference pulse in Precise alignment of the recording plane poses great difficulties

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[0028] The present disclosure will be further described below in conjunction with the accompanying drawings and embodiments.

[0029] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.

[0030] It should be noted that the terminology used herein is only for describing specific embodiments, and is not intended to limit the exemplary embodiments according to the present disclosure. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.

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Abstract

The invention provides a single-strike sequence holographic imaging system and a single-strike sequence holographic imaging method. According to the system, a sequence pulse generator comprising a group of diffraction gratings is used for synchronously generating a detection pulse sequence and a reference pulse sequence required for realizing multichannel angle division multiplexing holographic recording, no included angle existing between the wavefronts of the two pulse sequences; and the detection pulse sequence and the reference pulse sequence enter a holographic recording unit. The walk-off effect of ultrashort pulse laser in the single-strike sequence holographic imaging system is overcome, and therefore, the limitation of the short coherence of ultrashort pulses on the spatial resolution and field of view of single-strike sequence holographic imaging is effectively avoided.

Description

technical field [0001] The disclosure belongs to the technical field of holographic imaging, and in particular relates to a single-click sequence holographic imaging system and method. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and do not necessarily constitute prior art. [0003] Ultrafast imaging research on the dynamics of fast events such as ultrafast laser-induced plasma, laser filamentation and ablation has important academic and application significance. Especially with the rapid development and popularization of ultrashort pulse laser systems, how to record the mutation process of picosecond or femtosecond level has obviously become an important topic in the field of research on the interaction between ultrashort pulse laser and matter. In recent years, researchers have proposed a variety of methods on this research topic, which can be divided into repeated pump-probe imaging (...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03H1/12
CPCG03H1/12
Inventor 国承山黄洪义程振加杨杨岳庆炀
Owner SHANDONG NORMAL UNIV
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