Unlock instant, AI-driven research and patent intelligence for your innovation.

Transmission electron microscope system and method for realizing optical intelligent focusing

A kind of transmission electron microscope, intelligent technology, applied in material analysis by optical means, scientific instruments, fluorescence/phosphorescence, etc., can solve the problems of inability to measure the spectroscopic properties of materials and ultrafast kinetic processes

Active Publication Date: 2020-10-30
INST OF PHYSICS - CHINESE ACAD OF SCI
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of this technology is to solve the technical problems that the current transmission electron microscopy technology cannot measure the spectral properties and ultrafast kinetics of materials, so as to realize the in situ study of the microstructure and properties of materials

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Transmission electron microscope system and method for realizing optical intelligent focusing
  • Transmission electron microscope system and method for realizing optical intelligent focusing
  • Transmission electron microscope system and method for realizing optical intelligent focusing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Such as figure 1 As shown, the TEM system for optical smart focusing in this embodiment includes: a single-mode semiconductor laser 1, a beam expanding collimator 2, a polarization beam splitter 3, a first mirror 4, a second mirror 5, and spatial light modulation The device 6, the first lens 7, the second lens 12, the dichroic prism 8, the first microscopic objective lens 9, the second microscopic objective lens 11, the sample rod 10, the filter 13 and the image acquisition device 14.

[0031] Such as figure 2 As shown, the sample rod 10 includes a front end head 20 and a sample rod body (not labeled), wherein the front end head 20 is disposed at one end of the sample rod 10. See figure 2 An enlarged schematic view of the middle and front head 20. The front head 20 includes a sample holder 15, a support frame 16, an optical fiber 17, a three-dimensional positioning device 18, a cable harness 19, and a housing (shown in shaded areas, not labeled). Wherein, the shell is cy...

Embodiment 2

[0038] This embodiment provides a method for performing optical intelligent focusing. The method in this embodiment can be implemented by using the system in Embodiment 1 or by using other electron microscope systems.

[0039] The method of this embodiment includes the following steps:

[0040] Step 1: Install a sample carrying device in the sample cavity of the transmission electron microscope, the sample carrying device having an optical fiber and a sample;

[0041] In this embodiment, the single-mode semiconductor laser 1, the beam expanding collimator 2 and the polarization beam splitting prism 3 in embodiment 1 are used to generate the p-polarized parallel laser. Of course, those skilled in the art can use other equipment to obtain the p-polarization. Parallel laser. The laser emits linearly polarized light. The linearly polarized light is firstly transformed into parallel light by the beam expander collimator, and then the parallel light obtained is divided into two beams by a...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
wavelengthaaaaaaaaaa
Login to View More

Abstract

The invention provides a transmission electron microscope system and method for realizing optical intelligent focusing. The transmission electron microscope system provided by the invention comprisesa polarization laser generation device, a spatial light modulator, a sample bearing device, an image acquisition device and a system controller, the polarization laser generation device is used for obtaining polarization laser, the sample bearing device is installed in a sample cavity of the transmission electron microscope, an optical fiber and a sample are arranged in the sample bearing device,the sample has fluorescence characteristics, and the image acquisition device acquires fluorescence signals emitted by the sample. According to the transmission electron microscope system and method,firstly, light waves are modulated and reflected by the spatial light modulator and then directly enter the optical fiber, an optimized pattern is obtained by means of an intelligent iterative optimization algorithm and loaded to the spatial light modulator, and intelligent convergence of the light waves emitted by the optical fiber is achieved.

Description

Technical field [0001] The invention relates to the technical field of transmission electron microscopes, and more specifically, to a transmission electron microscope system that realizes optical intelligent focusing. Background technique [0002] Exploring the correspondence between the atomic structure and electronic structure of materials and their physical properties is one of the most important tasks in condensed matter physics research. At present, it is still a challenge in experimental technology. Spectroscopy technology can be used to study the spectral generation of materials and their interaction with substances. It is a direction that has always been valued in natural science research and has important application prospects, such as dynamic processes and atomic energy level structures. The development of ultra-high spatial resolution spectroscopy characterization technology, measurement and study of the microscopic mechanism of the excited state and its dynamics of na...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/01G01N21/63G01N21/64
CPCG01N21/01G01N21/63G01N21/6402
Inventor 刘畅马超杰刘开辉王恩哥白雪冬
Owner INST OF PHYSICS - CHINESE ACAD OF SCI