Infrared spectrum enhancement and detection method and infrared spectrum enhancement and detection device based on graphene nano antenna

A nano-antenna and infrared spectroscopy technology, applied in the field of infrared spectroscopy, can solve problems such as the inability to break through the limitations of the dispersion characteristics of metal materials, the inability to build a general platform for the detection of various types of molecules, and the lack of general significance for trace molecule detection. Instability and easy oxidative corrosion, good chemical stability, increase the effect of interaction

Active Publication Date: 2014-05-07
CHONGQING UNIV
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  • Claims
  • Application Information

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Benefits of technology

This patented new type of optoeletronic devices uses 3D graphene for better performance compared to previous designs due to improved optical properties such as higher transmittancy, faster reaction times, lower energy usage, less susceptibility to damage from environmental factors like water vapor or oxygen, and reduced costs associated therewith. Additionally, these improvements include increased durability against corrosive environments without requiring expensive metallic components. Overall, they offer technical benefits including greater efficiency, flexibility, reliability, versatility, wider applicabilities, and more precise analysis capabilities than existing technologies.

Problems solved by technology

Technologies such as laser interference scattering microscopes, atomic force microscope imagery, scanning tunneling Raman amplification, quantum point sized metallic materials, and ultrasonics have emerged over time due to advancestuous technical problem addressed in these technological methods. These existing methods suffer from limitations like slow reaction speeds, difficulty obtaining specific analyte signals, and lack versatility.

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  • Infrared spectrum enhancement and detection method and infrared spectrum enhancement and detection device based on graphene nano antenna
  • Infrared spectrum enhancement and detection method and infrared spectrum enhancement and detection device based on graphene nano antenna
  • Infrared spectrum enhancement and detection method and infrared spectrum enhancement and detection device based on graphene nano antenna

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Embodiment Construction

[0035] The present invention will be further elaborated below in conjunction with accompanying drawing:

[0036] The structure of the wide-band dynamic tuning infrared spectrum enhancement and detection device based on the three-dimensional graphene nano-antenna designed by the present invention can be found in figure 1 , which includes: a light source 1, a MEMS grating light modulator 2 based on a three-dimensional graphene nano-antenna, a collimator lens 3, and a single-point detector 4. The relationship of the optical path is: the infrared light emitted by the light source 1 is irradiated by the collimating lens 3 onto the MEMS grating light modulator 2 based on the three-dimensional graphene nano-antenna. The coupling resonant frequency of the surface plasmon is adjusted to the vibration frequency of the trace molecule, which increases the electromagnetic field strength in the unit space around the measured trace molecule, increases the interaction between the trace molecu...

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Abstract

The invention relates to an infrared spectrum enhancement and detection method and an infrared spectrum enhancement and detection device based on a graphene nano antenna. The device comprises a light source, a collimating lens, a one-point detector and an MEMS (micro-electromechanical system) grating light modulator based on the three-dimensional graphene nano antenna. Infrared light emitted from the light source is irradiated to the MEMS grating light modulator based on the three-dimensional graphene nano antenna through the collimating lens, an interference signal of the MEMS grating light modulator can be detected by the one-point detector, a detection signal is demodulated through Fourier transform, a spectrum is reproduced, and trace molecules are detected according to obtained spectrum information; the device has the advantages of good stability, high response speed, high sensitivity, dynamic tunable broadband, high enhancement factor and the like, can be expected to greatly increase the variety of substances detected by an infrared spectroscopic analysis technology and improve the detection sensitivity of the infrared spectroscopic analysis technology, and has a huge development space and a wide application prospect.

Description

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Claims

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Application Information

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Owner CHONGQING UNIV
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