Atomic time process single-time all-optical high-resolution imaging method and device
A time-course, high-resolution technique used in instrumentation and other directions
Active Publication Date: 2021-02-05
SHENZHEN UNIV
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[0006] The purpose of this application is to provide a method and device for atomic time-course single-shot plenoptic high-resolution imaging, to solve the technical problem of single-shot plenoptic and high-resolution imaging without atomic time-course in the prior art
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[0059] In order to promote the development of science and conduct more in-depth research on microscopic particles, it is necessary to obtain complete information on the time course of atoms. Therefore, it is required that the image set of the time course of atoms taken can record the movement process of particles completely in space and continuously in time. , the motion information of the particles cannot be lost. Theoretically, the image set that can meet the above requirements can only be realized by framing-scanning simultaneous photography technology.
[0060] Based on the above understanding, this embodiment constructs a framing-scanning simultaneous photography technology, which is realized by combining two imaging technologies of non-collinear optical parametric amplification idler light multi-frame imaging and extended frequency domain holographic scanning imaging , which can simultaneously acquire time-series multiple images and continuous scanning images of picosecon...
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The invention provides an atomic time process single-time all-optical high-resolution imaging method, which comprises the following steps of: processing femtosecond laser emitted by a femtosecond laser through using a frequency multiplier and a beam splitter to obtain fundamental frequency light and two beams of frequency doubled light; exciting an ultrafast event by using one beam of the frequency doubled light; taking the other beam of the frequency doubled light as sampling light to enter a framing imaging system; enabling the fundamental frequency light to pass through a dispersion systemand a pulse replication system to generate chirped detection pulse pairs as detection light; enabling the detection light to pass through the ultrafast event and dividing the detection light into twopaths by using the beam splitter; enabling one path of the detection light to enter a scanning imaging system to obtain an extended frequency domain holographic scanning image; and enabling the otherpath of the detection light to enter the framing imaging system as signal light, and acquiring a non-collinear optical parametric amplification idler frequency light framing image after sampling the detection light by using frequency multiplication sampling light. According to the atomic time process single-time all-optical high-resolution imaging method, framing / scanning simultaneous imaging of the same time reference and the same space reference of the atomic time scale is realized.
Description
technical field [0001] The present application relates to the technical field of imaging, in particular to a method and device for atomic time-course single-shot plenoptic high-resolution imaging. Background technique [0002] The vibration period of a single atom is between 10fs and 1ps. The atomic motion within this period basically determines the formation of new solid phases in physics, the transfer of kinetic energy in chemical reactions, and the completion of biological functional processes. At the atomic level, three They are the same, they both study the law of the motion of atoms. [0003] Observing the optical information of the atomic time course, accurately revealing the physical, chemical, and biological scenes and changes that occur during the atomic motion process, such as the motion of atoms during chemical reactions, and the transient state that occurs when ultrashort laser pulses interact with materials Nonlinear processes, etc., are the goals pursued by p...
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IPC IPC(8): G01J11/00
CPCG01J11/00
Inventor 李景镇蔡懿陆小微张秀文刘进元吴庆阳惠彬牛丽红曾选科陈红艺
Owner SHENZHEN UNIV