Terahertz metamaterial biosensing chip and testing method thereof

A biosensing and testing method technology, applied in the field of terahertz metamaterials, can solve the problems of difficult processing, low sensitivity, and high production cost, and achieve the effects of improving sensing sensitivity, simple structural design, and improving uniformity

Active Publication Date: 2015-07-08
CHONGQING INST OF GREEN & INTELLIGENT TECH CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a terahertz metamaterial biosensing chip and its testing method, which is used to solve the problem of the sh

Method used

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  • Terahertz metamaterial biosensing chip and testing method thereof
  • Terahertz metamaterial biosensing chip and testing method thereof
  • Terahertz metamaterial biosensing chip and testing method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0040] A substrate 1, and a subwavelength metal resonant ring array attached to the substrate 1;

[0041] Wherein, the substrate 1 has an absorption coefficient of less than 0.5 cm in the terahertz wave band. -1The sub-wavelength metal resonator ring array includes at least 4 resonator ring units 2, each of the resonator ring units 2 is a square metal frame as a whole, and a Openings of the same size 3.

[0042] Specifically, the period of the sub-wavelength metal resonant ring array is 50um.

[0043] Specifically, the line width of the metal frame of the resonant ring unit 2 is 2um.

[0044] Specifically, the distance between every two resonant ring units 2 in the sub-wavelength metal resonant ring array is 2um.

[0045] Specifically, the size of the opening 3 in the resonance ring unit 2 is 1 um.

Embodiment 2

[0047] A substrate 1, and a subwavelength metal resonant ring array attached to the substrate 1;

[0048] Wherein, the substrate 1 has an absorption coefficient of less than 0.5 cm in the terahertz wave band. -1 The sub-wavelength metal resonator ring array includes at least 4 resonator ring units 2, each of the resonator ring units 2 is a square metal frame as a whole, and a Openings of the same size 3.

[0049] Specifically, the period of the sub-wavelength metal resonant ring array is 70um.

[0050] Specifically, the line width of the metal frame of the resonant ring unit 2 is 7um.

[0051] Specifically, the distance between every two resonant ring units 2 in the sub-wavelength metal resonant ring array is 7um.

[0052] Specifically, the size of the opening 3 in the resonance ring unit 2 is 2um.

Embodiment 3

[0054] A substrate 1, and a subwavelength metal resonant ring array attached to the substrate 1;

[0055] Wherein, the substrate 1 has an absorption coefficient of less than 0.5 cm in the terahertz wave band. -1 The sub-wavelength metal resonator ring array includes at least 4 resonator ring units 2, each of the resonator ring units 2 is a square metal frame as a whole, and a Openings of the same size 3.

[0056] Specifically, the period of the sub-wavelength metal resonant ring array is 100 um.

[0057] Specifically, the line width of the metal frame of the resonant ring unit 2 is 10um.

[0058] Specifically, the distance between every two resonant ring units 2 in the sub-wavelength metal resonant ring array is 10 um.

[0059] Specifically, the size of the opening 3 in the resonance ring unit 2 is 4um.

[0060] Wherein, the sub-wavelength metal resonator ring array period is: the distance between each side of each sub-wavelength metal resonator ring unit (corresponding up...

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Abstract

The invention provides a terahertz metamaterial biosensing chip and a testing method of the terahertz metamaterial biosensing chip. The terahertz metamaterial biosensing chip comprises a substrate and a sub-wavelength metallic split-ring resonator array attached on the substrate, wherein the substrate is made of a material having the absorption coefficient less than 0.5-1cm under the terahertz waveband; the sub-wavelength metallic split-ring resonator array comprises multiple split-ring resonator units, each split-ring resonator unit is a square metal frame; and the middle parts of the edges of the square metal frame are provided with same openings respectively. Compared with the existing biosensor, the terahertz metamaterial biosensing chip is made of the terahertz metamaterial, so that the uniformity of the terahertz metamaterial biosensor structure is improved, and the sensing sensitivity is improved due to the uniformity and simple structure design.

Description

technical field [0001] The invention relates to the technical field of terahertz metamaterials, in particular to a biosensing chip composed of terahertz metamaterials and metal resonant rings and a testing method thereof. Background technique [0002] Terahertz radiation is electromagnetic radiation from 0.1THZ to 10THZ (photon energy from 0.41meV to 41.4meV, wavelength 30-3000um), which is between infrared and microwave radiation. with microscopic transition regions. Subwavelength metallic structures (also known as metamaterials) refer to metallic structures whose structural size is much smaller than the wavelength, and have peculiar electromagnetic resonance properties, such as negative refraction, anomalous transmission, and sensitivity to dielectric environments. Terahertz metamaterials are new materials artificially synthesized by using terahertz. Through the resonance enhancement characteristics of subwavelength metal structures, the interaction between biomolecules a...

Claims

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Application Information

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IPC IPC(8): G01N21/3581
Inventor 夏良平王思江毛洪艳颜识涵姜雪峰王化斌魏东山崔洪亮杜春雷
Owner CHONGQING INST OF GREEN & INTELLIGENT TECH CHINESE ACADEMY OF SCI
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