Electric field detection device based on surface plasmon polariton propagation characteristic change

A polariton and surface plasmon technology, applied in the field of electric field detection, can solve the problem of low sensitivity and achieve high sensitivity of electric field detection

Inactive Publication Date: 2021-03-09
彭彦莉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The sensitivity of traditional electric field measurement devices is low, and it is of great significance to explore electric field detection technology based on new principles to improve the sensitivity of electric field measurement

Method used

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  • Electric field detection device based on surface plasmon polariton propagation characteristic change
  • Electric field detection device based on surface plasmon polariton propagation characteristic change
  • Electric field detection device based on surface plasmon polariton propagation characteristic change

Examples

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Embodiment 1

[0020] The invention provides an electric field detection device based on the change of surface plasmon polariton propagation characteristics, such as figure 1 As shown, it includes a substrate 1 , a heating part 2 , a noble metal thin film 3 , a surface plasmon polariton excitation part 4 , a surface plasmon polariton detection part 5 , and an organic conjugated polymer material 6 . The surface of the substrate 1 is provided with pits, and the heating part 2 fills the pits. The material of the base 1 is a heat insulating material, which is used to insulate the heat generated by the heating part 2 . The heating part 2 can generate high temperature by connecting other high-temperature objects, or by generating heat through resistance, which is not specifically limited here. A noble metal thin film 3 is placed on the substrate 1 and the heating part 2 . That is to say, the upper surface of the substrate 1 is flush with the upper surface of the heating part 2 , and the noble me...

Embodiment 2

[0024] On the basis of Example 1, such as figure 2 As shown, on the top of the heating part 2, the noble metal film 3 is provided with a groove 7. The organic conjugated polymer material 6 fills the groove 7 . Specifically, the width of the groove 7 is less than 10 nanometers, and the depth of the groove 7 is less than 20 nanometers. In this embodiment, the function of the groove 7 is not to form local surface plasmon resonance, but to change the surface plasmon polaritons on the noble metal film 3 , so the size of the groove 7 is small. In this way, the organic conjugated polymer material 6 has more contact area with the noble metal thin film 3 . When the molecular chain direction of the organic conjugated polymer material 6 changes, the effective refractive index of the surface of the noble metal thin film 3 is changed more, thereby changing the surface plasmon polariton propagation characteristics of the noble metal thin film 3 more, thereby achieving a higher Sensitive...

Embodiment 3

[0026] On the basis of Example 1, such as image 3 As shown, on the top of the heating part 2 , a hole 8 is provided in the noble metal film 3 . The organic conjugated polymer material 6 fills the pores 8 . In this way, on the one hand, the hole 8 reduces the amount of noble metal material in the noble metal thin film 3, and when the surface plasmon polaritons propagate on the surface of the noble metal thin film 3, the hole 8 lengthens the surface plasmon polaritons more. On the other hand, the hole 8 also makes the organic conjugated polymer material 6 and the noble metal film 3 have more contact area. In addition, the organic conjugated polymer material 6 is in contact with the heating part 2 through the hole 8, so that the organic conjugated polymer material 6 can absorb more heat from the heating part 2, so that the temperature of the organic conjugated polymer material 6 is higher . The effects of these three aspects make the molecular chain direction of the organic c...

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Abstract

The invention provides an electric field detection device based on surface plasmon polariton propagation characteristic change, which comprises a substrate, a heating part, a noble metal film, a surface plasmon polariton excitation part, a surface plasmon polariton detection part and an organic conjugated polymer material. The surface of the substrate is provided with a pit, the pit is filled withthe heating part, the noble metal film is arranged on the substrate and the heating part, the surface plasmon polariton excitation part and the surface plasmon polariton detection part are respectively arranged on the two sides of the heating part on the noble metal film, and the organic conjugated polymer material is arranged on the noble metal film at the top of the heating part. The device hasthe advantage of high electric field detection sensitivity.

Description

technical field [0001] The invention relates to the field of electric field detection, in particular to an electric field detection device based on the variation of surface plasmon polariton propagation characteristics. Background technique [0002] The measurement of the electric field is not only of great significance to the launch of missiles, rockets, and aircrafts, but also to places on the ground that are prone to static electricity and are easily harmed by static electricity and radar, such as urban environmental pollution, ultra-clean laboratories, oil refineries, and oil storage stations. Applications. The sensitivity of traditional electric field measurement devices is low, and it is of great significance to explore electric field detection technology based on new principles to improve the sensitivity of electric field measurement. Contents of the invention [0003] In order to solve the above problems, the present invention provides an electric field detection ...

Claims

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Application Information

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IPC IPC(8): G01R29/08G01R29/14
CPCG01R29/0885G01R29/14
Inventor 不公告发明人
Owner 彭彦莉
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