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Method for achieving infrared detection by desorption phenomenon of infrared excitation molecules

An infrared excitation and infrared detection technology, applied in the field of sensing and detection, can solve the problems of spatial resolution and response time being far apart, and achieve the effect of optimizing the sensing and detection performance of the system, multiple adsorption sites, and improving the response rate.

Active Publication Date: 2017-06-13
SHANGHAI JIAO TONG UNIV
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Problems solved by technology

Although uncooled infrared detection technology has been improved by leaps and bounds, it is still far from cooled detectors in terms of spatial resolution and response time

Method used

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  • Method for achieving infrared detection by desorption phenomenon of infrared excitation molecules
  • Method for achieving infrared detection by desorption phenomenon of infrared excitation molecules
  • Method for achieving infrared detection by desorption phenomenon of infrared excitation molecules

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Embodiment 1

[0049] Because Morpho butterfly wings have a brilliant structural color, which is caused by its fine three-dimensional micro-nano structure. Such as figure 2 (a) Stick the original butterfly wing on the bottom of the container. The bottom material of the container is calcium fluoride. Water vapor flows through the upper portion of the butterfly wing and is adsorbed on the surface of the butterfly wing micro-nano structure. The external infrared signal is irradiated to the back of the butterfly wing through the bottom of the container. Due to the interaction of the external infrared signal with the adsorbed water molecules, the temperature of the water molecules rises and desorbs from the surface of the butterfly wing, which changes the reflection spectrum of the butterfly wing, thereby reducing The invisible infrared signal is converted into a visible light signal, and the ultraviolet-visible spectrometer is used to observe the changes in the reflection spectrum of the butterfl...

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Abstract

The invention relates to a method for achieving infrared detection by a desorption phenomenon of infrared excitation molecules. The method comprises the following steps that micro-nanometer structure surfaces absorb chemical molecules; infrared signals are added to the micro-nanometer structure surface, and the chemical molecules adsorbed by the micro-nanometer structure surface are desorbed from the micro-nanometer structure surfaces under excitation of the infrared signals; micro-nanometer structures has changes of physical properties due to the molecular desorption, and the changes of the physical properties of the micro-nanometer structures are detected through a device, and therefore detection of the extra infrared signals is achieved. Due to an effect of the extra infrared signals, the chemical molecules adsorbed on the micro-nanometer structure surfaces are desorbed from the micro-nanometer structure surfaces because the chemical molecules absorb the infrared signals to make the temperature rise, the optical property, electrical property, magnetic property and other physical properties of the micro-nanometer structures is caused to change, and therefore the phenomenon is utilized to achieve the detection of the infrared signals. Compared with existing infrared detection technologies, the method for achieving the infrared detection by the desorption phenomenon of the infrared excitation molecules has the advantages that the sensitivity is high and feedback signals are easy to analyze and the like.

Description

Technical field [0001] The invention belongs to the field of sensor detection, and in particular relates to a method for realizing infrared detection by using the desorption phenomenon of infrared excitation molecules from the surface of micro-nano structures. Background technique [0002] Infrared is an electromagnetic wave with a wavelength between visible light and microwave. All objects with a temperature higher than absolute zero emit infrared light. Due to the non-destructive nature of infrared detection technology and the unique information it reveals, it determines the importance of this technology in the supervision of industrial production processes, medical diagnosis and military affairs. And widely used. [0003] Infrared detection technologies are generally divided into two types: refrigerated and uncooled infrared detection technologies. Cooled infrared detection is generally based on photoelectric and photovoltaic technology, but requires additional cooling, so its...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01J5/58B82Y35/00
Inventor 申清臣罗珍尚文邓涛陶鹏宋成轶邬剑波
Owner SHANGHAI JIAO TONG UNIV
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