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

Terahertz two-dimensional imaging system and imaging method

A two-dimensional imaging and terahertz technology, applied in the field of terahertz applications, can solve the problems of large interference, low incident signal intensity, and low collection efficiency, and achieve the effects of improving imaging signal-to-noise ratio, increasing collection efficiency, and achieving convergence

Pending Publication Date: 2017-03-15
SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
View PDF5 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a terahertz two-dimensional imaging system and imaging method, which are used to solve the problem of low intensity of incident signals entering the detector in existing imaging systems, large interference, and The problem of low collection efficiency

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
  • Terahertz two-dimensional imaging system and imaging method
  • Terahertz two-dimensional imaging system and imaging method
  • Terahertz two-dimensional imaging system and imaging method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0074] Such as figure 1 As shown, this embodiment provides a terahertz two-dimensional imaging system, and the imaging system includes:

[0075] Terahertz quantum cascade laser module 1 for radiating parallel terahertz beams outward;

[0076] The stage module 2 is used to carry the object to be imaged, rotate and translate the object to be imaged, and send the two-dimensional information of the rotation and translation of the object to be imaged to the data processing and image restoration module 5;

[0077] The optical path transmission module 3 is used to converge the parallel terahertz beam emitted by the terahertz quantum cascade laser module 1 on the object to be imaged, and reflect the terahertz light with the information of the object to be imaged to form a divergent solar Hertz beam, and then convert the divergent terahertz beam into parallel terahertz beam and transmit it to the data acquisition module 4;

[0078] The data acquisition module 4 is used to receive the parallel ...

Embodiment 2

[0113] Such as Figure 4 As shown, this embodiment also provides an imaging method for a terahertz two-dimensional imaging system, and the imaging method includes:

[0114] 1) The terahertz quantum cascade laser module 1 emits parallel terahertz beams, which are transmitted through the optical path transmission module 3 and converge on the object to be imaged on the surface of the stage module 2;

[0115] 2) The convergent terahertz light scans the position information of the object to be imaged, and then the terahertz light with position information is reflected by the optical path transmission module 3 and converted into a parallel terahertz beam to be transmitted to the data acquisition module 4, and the data is processed And the image restoration module 5 controls the stage module 2 to rotate and translate, so that the converged terahertz light scans all the position information of the object to be imaged. At the same time, the stage module 2 collects the position information an...

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

No PUM Login to View More

Abstract

The invention provides a terahertz two-dimensional imaging system and imaging method, and the imaging system comprises a terahertz quantum cascade laser module, an objective table module, a light path transmission module, a data acquisition module, and a data processing and image restoration module. The imaging system adopts a symmetrical three-dimensional optical path to achieve the reception of a reflection signal, the imaging facula is small, the efficiency of the imaging signal acquisition is high, the energy consumption of the imaging system is reduced, the signal to noise ratio of the imaging is increased, and the problems of low intensity, large interference and low acquisition efficiency of the incident signals entering detectors of existing imaging systems are solved.

Description

Technical field [0001] The invention belongs to the field of terahertz application technology, and particularly relates to a terahertz two-dimensional imaging system and an imaging method. Background technique [0002] THz (Terahertz) imaging is one of the important application directions of THz technology. In 1995, BBHu and MCNuss used THz time-domain spectroscopy system to achieve scanning imaging of fresh leaves and integrated circuits. This work is regarded as the THz imaging field. A milestone, the intuitive and clear transmission scan image proves the great potential of THz waves in the imaging field. In particular, the imaging potential of THz QCL developed from infrared quantum cascade laser (QCL) has also attracted widespread attention. The device has high output power, good single frequency, small size and easy integration. Features, as a THz source, used by various imaging technologies and systems. [0003] THz wave is between millimeter wave and infrared light. Compar...

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): G01N21/3581
CPCG01N21/3581
Inventor 邱付成谭智勇李孟奇王长曹俊诚
Owner SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI