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Method, system and medium for measuring electron orbital radius based on attosecond fringe spectroscopy

A technology of electronic orbit and radius measurement, applied in radiation measurement, measurement device, particle motion recording and other directions, can solve the problem of photoionization time delay and other problems that have not been reported, and achieve the effect of direct measurement, high precision and simple theory.

Active Publication Date: 2022-07-08
WUHAN INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
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  • Claims
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Problems solved by technology

But so far, no report has pointed out whether the photoionization time delay can reconstruct the structural information of electrons

Method used

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  • Method, system and medium for measuring electron orbital radius based on attosecond fringe spectroscopy
  • Method, system and medium for measuring electron orbital radius based on attosecond fringe spectroscopy
  • Method, system and medium for measuring electron orbital radius based on attosecond fringe spectroscopy

Examples

Experimental program
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Effect test

Embodiment 1

[0083] Example one, as figure 1 As shown, a method for measuring electron orbital radius based on attosecond fringe spectrum includes the following steps:

[0084] S1: Acquire the attosecond fringe spectra produced by a plurality of infrared electric fields and a single attosecond pulsed laser acting on the working gas, respectively, and obtain the attosecond fringe spectra generated by the plurality of infrared electric fields, respectively, and a single attosecond pulse under the initial positions of a plurality of electrons a plurality of classical fringe trajectories generated by the combined action of the pulsed laser on the working gas;

[0085]S2: obtaining the photoionization time delay of the working gas according to the attosecond fringe spectrum, and obtaining a plurality of classical photoionization time delays corresponding to the working gas according to a plurality of the classical fringe trajectories;

[0086] S3: Obtain the electron orbital radius correspondi...

Embodiment 2

[0135] Embodiment two, as figure 1 As shown, a method for measuring electron orbital radius based on attosecond fringe spectrum includes the following steps:

[0136] S1: Acquire the attosecond fringe spectra produced by a plurality of infrared electric fields and a single attosecond pulsed laser acting on the working gas, respectively, and obtain the attosecond fringe spectra generated by the plurality of infrared electric fields, respectively, and a single attosecond pulse under the initial positions of a plurality of electrons a plurality of classical fringe trajectories generated by the combined action of the pulsed laser on the working gas;

[0137] S2: obtaining the photoionization time delay corresponding to the working gas according to the attosecond fringe spectrum, and obtaining a plurality of classical photoionization time delays corresponding to the working gas according to a plurality of the classical fringe trajectories;

[0138] S3: Obtain the electron orbital ...

Embodiment 3

[0140] Embodiment three, as Figure 9 As shown, an electronic orbital radius measurement system based on attosecond fringe spectrum includes an energy spectrum acquisition module, a time delay fitting module and an orbital radius determination module;

[0141] The fringe spectrum acquisition module is used to acquire the attosecond fringe spectra generated by the combined action of a plurality of infrared electric fields and a single attosecond pulsed laser on the working gas, and is also used to acquire a plurality of the initial positions of the electrons. A plurality of classical fringe trajectories generated on the working gas by the combined action of the infrared electric field and the single attosecond pulsed laser respectively;

[0142] The time delay extraction module is configured to obtain the photoionization time delay of the working gas according to the attosecond fringe spectrum, and is also configured to obtain a plurality of classical photoionizations correspon...

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Abstract

The invention relates to a method, a system and a medium for measuring electron orbit radius based on attosecond fringe spectrum. The method includes acquiring the attosecond fringe spectrum generated by a plurality of infrared electric fields and a single attosecond pulse laser acting on a working gas respectively, and obtaining Under multiple electron initial positions, multiple classical fringe trajectories are generated by multiple infrared electric fields and a single attosecond pulsed laser acting on the working gas respectively; the photoionization time delay of the working gas is obtained according to the attosecond streak spectrum, and according to the multiple The multiple classical photoionization time delays corresponding to the working gas are obtained from each classical fringe trajectory; the electron orbital radii corresponding to the working gas are obtained according to the photoionization time delay and the multiple classical photoionization time delays. Based on the attosecond fringe spectrum, the invention can realize the direct measurement of the electron orbital radius. The method is simple in theory, low in calculation difficulty, small in calculation amount and high in precision.

Description

technical field [0001] The invention relates to the technical field of microscopic particle measurement, in particular to a method, system and medium for measuring electron orbit radius based on attosecond fringe spectrum. Background technique [0002] In 1913, Niels Bohr established the Bohr model to describe the structure of atoms. The model states that electrons will only stay at certain distances (depending on energy) to orbit the nucleus. For a hydrogen atom, there is only one electron orbit, which is the smallest orbital in a hydrogen atom that an electron can travel. Its energy is The smallest, and the most probable distance that the hydrogen nucleus can find this smallest orbital outward is called the Bohr radius, that is, the radius of the electron orbital in the hydrogen atom is equal to the Bohr radius a 0 (about 0.529 angstroms). [0003] Although the Bohr model cannot accurately describe the structure of an atom, the Bohr radius is still meaningful. On the on...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01T5/00
CPCG01T5/006
Inventor 王凤廖青王哲张晓凡秦梅艳刘凯
Owner WUHAN INSTITUTE OF TECHNOLOGY
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