Electric field detection device based on dimer surface plasmon resonance regulation and control
A surface plasmon and detection device technology, applied in the field of electric field detection, can solve the problem of low sensitivity
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0021] The present invention provides an electric field detection device based on dimer surface plasmon resonance regulation, such as figure 1 As shown, it includes a base layer 1, a heating layer 2, and a noble metal dimer layer. The heating layer 2 is placed on the base layer 1 . The material of the base layer 1 is a heat insulating material, which is used to insulate the heat generated by the heating layer 2 . The heating layer 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 dimer layer is placed on the heating layer 2 , and the noble metal dimer layer includes noble metal dimer units 3 arranged periodically. Specifically, the period in which the noble metal dimer units 3 are arranged is a square period. The noble metal dimer unit 3 includes a first noble metal part 4, a second noble metal part 5, and an organic conjugated polymer material 6. A ga...
Embodiment 2
[0026] On the basis of Example 1, such as figure 2 As shown, the top of the gap is narrow and the bottom of the gap is wide. The width of the top of the gap is less than 40 nanometers. In this way, on the one hand, on the top of the first noble metal part 4 and the second noble metal part 5, the coupling between the first noble metal part 4 and the second noble metal part 5 is stronger; on the other hand, the electromagnetic wave entering the gap Easier to be confined within gaps. Therefore, the configuration of this embodiment reduces the half-peak widths of the two resonance modes, which not only reduces the detection difficulty, but also improves the detection sensitivity.
Embodiment 3
[0028] On the basis of Example 2, such as image 3 As shown, noble metal particles 7 are also included, and the noble metal particles 7 are arranged on the heating layer 2 in the gap. The number of noble metal particles 7 is plural. The diameter of the noble metal particles 7 is less than 100 nanometers. The material of noble metal particles 7 is gold or silver. In this way, the electromagnetic wave entering the gap can be absorbed by the noble metal particles 7, so that the electromagnetic wave is more easily confined in the gap, reducing the half-peak width of the resonance mode, and improving the sensitivity of electric field detection. In addition, the noble metal particles 7 have more contact area with the organic conjugated polymer material 6 . When the molecular chain direction of the organic conjugated polymer material 6 changes, that is, when the effective refractive index of the organic conjugated polymer material 6 changes, the effective refractive index of the c...
PUM
| Property | Measurement | Unit |
|---|---|---|
| diameter | aaaaa | aaaaa |
| width | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More