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Terahertz spectrograph and terahertz transceiver probe

A terahertz and spectrometer technology, applied in the field of terahertz spectrometers and terahertz transceiver probes, can solve the problems of complex structure of terahertz spectrometers, large volume of terahertz transceiver probes, low efficiency of terahertz energy utilization, etc.

Inactive Publication Date: 2014-04-23
INST OF FLUID PHYSICS CHINA ACAD OF ENG PHYSICS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It solves the shortcomings of complex structure, large volume and low detection efficiency of terahertz spectrometers in the prior art
Furthermore, through the position setting of the terahertz lens and the photoconductive antenna, the shortcomings of the large volume of the terahertz transceiver probe and the low efficiency of terahertz energy utilization in the prior art are solved

Method used

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  • Terahertz spectrograph and terahertz transceiver probe
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  • Terahertz spectrograph and terahertz transceiver probe

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Embodiment Construction

[0046] All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps.

[0047] Any feature disclosed in this specification (including any appended claims, abstract and drawings), unless expressly stated otherwise, may be replaced by alternative features which are equivalent or serve a similar purpose. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.

[0048] 1. Relevant descriptions of the present invention:

[0049] 1. Laser refers to a femtosecond laser. Lasers can be free space lasers or fiber lasers. In addition, femtosecond lasers with different central wavelengths can be used by changing the base material of the photoconductive antenna. For example femtosecond lasers at 780n and 1560nm.

[0050] The beam splitting device includes a beam splitter and an adjuster, wherein the be...

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Abstract

The invention relates and belongs to the field of terahertz time-domain spectroscopy diagnostic technique, in particular to a terahertz spectrograph and a terahertz transceiver probe (b). ( / b) The technical problems to be solved are as follows: the existing terahertz time-domain spectroscopy systems mostly adopt an off-axis parabolic mirror to implement the space transmission for terahertz pulses, and have complex structures, long optical paths and weak stability, so that the energy utilization rate of terahertz waves is low. Against the existing problems, the invention provides the terahertz spectrograph and the terahertz transceiver probe; laser emitted by a laser is converted to detection light and pump light through a terahertz converter; then, the detection light and the pump light output by the terahertz converter are received through the terahertz transceiver probe so as to implement the sample reflection type detection and transmission type detection to obtain sample spectral information. The problems of complex structure and large volume of the existing terahertz spectrographs in the prior art are solved. Further, the defects of large volume and low utilization efficiency of terahertz energy of the existing terahertz transceiver probes are solved. The terahertz spectrograph comprises the laser, the terahertz converter, the terahertz transceiver probe and the like. The terahertz spectrograph and the terahertz transceiver probe are applied to the terahertz spectral imaging and diagnose application fields.

Description

technical field [0001] The invention relates to the technical field of terahertz time domain spectrum diagnosis, in particular to a terahertz spectrometer and a terahertz transceiver probe. Background technique [0002] THz waves or terahertz rays were only officially discovered in the middle and late 1980s. Terahertz waves refer to electromagnetic waves with a frequency in the range of 0.1THZ to 10THZ, and a wavelength in the range of about 0.03 to 3mm, which is between microwave and infrared. Terahertz systems are widely used in many fields such as semiconductor materials, high-temperature superconducting material research, tomographic imaging technology, label-free genetic inspection, cell-level imaging, chemical and biological inspection, broadband communication, and microwave orientation. [0003] At present, most terahertz time-domain spectroscopy systems use off-axis parabolic mirrors to propagate terahertz pulses in space, which is complex in structure, long in opti...

Claims

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Application Information

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IPC IPC(8): G01N21/27
Inventor 雷江波孟坤朱礼国刘乔钟森城翟召辉
Owner INST OF FLUID PHYSICS CHINA ACAD OF ENG PHYSICS
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