Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

All-fiber transmission reflection integrated terahertz time-domain spectroscopy system

A terahertz time-domain and spectral system technology, which is applied in the field of all-fiber transflective integrated terahertz time-domain spectroscopy system, can solve problems such as complex structure and poor stability, and achieve the effect of simple system and optimized terahertz pulse waveform

Active Publication Date: 2015-04-29
天津理特光电科技有限公司
View PDF6 Cites 30 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Most of the terahertz time-domain spectroscopy systems currently used in experiments are free-space systems with complex structures and poor stability

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • All-fiber transmission reflection integrated terahertz time-domain spectroscopy system
  • All-fiber transmission reflection integrated terahertz time-domain spectroscopy system
  • All-fiber transmission reflection integrated terahertz time-domain spectroscopy system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] All the features, methods or steps in the process disclosed in the present invention can be combined in any way, except for mutually exclusive features or steps.

[0030] Any feature disclosed in the present invention, unless specifically stated, can be replaced by other equivalent or similar purpose alternative features. That is, unless expressly stated otherwise, each feature is only one example of a series of equivalent or similar features.

[0031] One, the relevant description of the present invention:

[0032] In the embodiment of the present invention, the terahertz transmitter 17 and the terahertz receiver 18 antenna are suitable for femtosecond pulses near the central wavelength of 1560nm, so the laser 1 selected in the present invention is a femtosecond pulsed fiber laser with a central wavelength of 1550nm. Other types of photoconductive antennas or nonlinear crystals and lasers of other wavelengths can be selected.

[0033] The first off-axis parabolic mir...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides an all-fiber transmission reflection integrated terahertz time-domain spectroscopy system. At present, most of the terahertz time-domain spectroscopy systems refer to free-space systems and have the defects of complex structure, low stability and the like. Aiming at the problem, femtosecond laser pulse is transmitted by virtue of optical fibers, so that the usage amount of optical devices in the light path is reduced, and the light path is simple and stable in structure. Meanwhile, because the femtosecond laser pulse comes into a terahertz emitter and a terahertz receiver by virtue of optical fibers, the light path structure of the system is not influenced by the movement and rotation of the positions of the terahertz emitter and the terahertz receiver, the terahertz receiver and the terahertz emitter can be respectively arranged on two rotatable optical guide rails, and flexible switch between terahertz transmission and reflection time-domain spectroscopy systems can be further realized. Therefore, the problem that the terahertz spectroscopy system is complex in structure and large in size in the prior art is solved.

Description

technical field [0001] The invention relates to an all-fiber transflective integrated terahertz time-domain spectroscopy system, especially capable of realizing terahertz transmission, multi-angle reflection and diffuse reflection spectrum detection. Background technique [0002] 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 0.03mm to 3mm, which is between infrared light and microwaves. [0003] The properties of materials can be analyzed by using terahertz pulses, and terahertz time-domain spectroscopy is a very effective testing method. The terahertz time-domain spectroscopy system is a coherent detection technology that can simultaneously obtain the amplitude and phase information of the terahertz pulse. Through the analysis of the time-domain and frequency-domain waveforms, parameters such as the absorption coefficient and refractive index of the sample can be obtained. Terahertz t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01N21/3586G01J3/42
Inventor 刘伟伟杨晶赵佳宇郭兰军
Owner 天津理特光电科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com