Title:
TERAHERTZ FOCAL PLANE IMAGING DETECTOR, IMAGING SYSTEM AND IMAGING METHOD
Document Type and Number:
WIPO Patent Application WO/2023/060660
Kind Code:
A1
Abstract:
A terahertz focal plane imaging detector, imaging system and imaging method. The imaging detector comprises a metasurface wave absorbing module (1), a deformation module, a magnetic detection module (4), and a data readout module; a magnetic film (3) is provided at the bottom of the metasurface wave absorbing module (1); the metasurface wave absorbing module (1) receives terahertz signals and then absorbs waves to generate heat; the deformation module produces deformation to drive the magnetic film (3) at the bottom of the metasurface wave absorbing module (1) to move accordingly, so as to converts deformation displacement into a change in a magnetic field; the magnetic detection module (4) converts the change amount of the magnetic field into the change amount of a resistance value; the data readout module reads a resistance signal and converts same into a voltage signal. The deformation displacement is converted into a change in a magnetic field for imaging, noise equivalent power (NEP) has excellent performance, the response speed is higher, thus the requirement of real-time imaging can be can satisfied, the design of a working frequency band is more flexible, imaging can be achieved at room temperature, without additional refrigeration equipment, the structural design is reasonable, and thus the requirement of preparing a large-scale array can be satisfied.
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Inventors:
MOU JINCHAO (CN)
ZHU HAILIANG (CN)
LI LIANGHAI (CN)
WANG KAI (CN)
ZHANG ZHENHUA (CN)
LIU GANYU (CN)
ZHOU YUXIN (CN)
XIE SHENGLIN (CN)
LIU HAO (CN)
HUANG HUI (CN)
ZHU HAILIANG (CN)
LI LIANGHAI (CN)
WANG KAI (CN)
ZHANG ZHENHUA (CN)
LIU GANYU (CN)
ZHOU YUXIN (CN)
XIE SHENGLIN (CN)
LIU HAO (CN)
HUANG HUI (CN)
Application Number:
PCT/CN2021/127954
Publication Date:
April 20, 2023
Filing Date:
November 01, 2021
Export Citation:
Assignee:
BEIJING RES INSTITUTE OF TELEMETRY (CN)
AEROSPACE LONG MARCH LAUNCH VEHICLE TECHNOLOGY CO LTD (CN)
AEROSPACE LONG MARCH LAUNCH VEHICLE TECHNOLOGY CO LTD (CN)
International Classes:
G01J5/48
Foreign References:
| CN103575403A | 2014-02-12 | |||
| CN103575407A | 2014-02-12 | |||
| CN104458011A | 2015-03-25 | |||
| CN105891609A | 2016-08-24 | |||
| CN103983364A | 2014-08-13 | |||
| CN104792420A | 2015-07-22 | |||
| US20080237469A1 | 2008-10-02 |
Attorney, Agent or Firm:
PATENT AGENT OF CHINA AEROSPACE TECHNOLOGY (CN)
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