Polarization state tunable terahertz wave emitter

A polarization state and emitter technology, applied in the field of terahertz wave emitters, can solve the problems that the polarization state cannot be adjusted, the circular polarization characteristics cannot reach the expected goal, and the design and processing are complicated.

Pending Publication Date: 2018-11-30
BEIHANG UNIV
View PDF0 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the design and processing of chiral metamaterial devices are complex, especially the high precision requirements of the processing technology, resulting in the circular polarization characteristics obtained cannot meet the expected goals, and the cost is very high
[0006] Although the above

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
  • Polarization state tunable terahertz wave emitter
  • Polarization state tunable terahertz wave emitter
  • Polarization state tunable terahertz wave emitter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0024] In the description of the embodiments of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer " and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only ...

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

PropertyMeasurementUnit
Thicknessaaaaaaaaaa
Login to view more

Abstract

An embodiment of the invention provides a polarization state tunable terahertz wave emitter. A metamaterial layer is arranged on a ferromagnetic nano-film layer, and a periodic cross-shaped hollow structure is etched on the metamaterial layer; the ferromagnetic nano-film layer is driven by a sample frame to rotate, and then the metamaterial layer is driven to rotate so as to modulate the polarization state of the terahertz wave. In the embodiment of the invention, the metamaterial layer for performing polarization state modulation is integrated in the terahertz wave emitter, so that the polarization state of the terahertz wave emitted by the terahertz emitter is controllable, and the polarization state of the terahertz wave does not need to be modulated by using other external elements. The narrow-band linear polarization terahertz wave emitter, a narrow-band elliptical polarization terahertz wave emitter and a narrow-band circular polarization terahertz wave emitter integrated on chips can be realized; and in addition, the emitter with controllable weak field terahertz polarization can be realized, and the emitter also can be used for a strong-field terahertz generator with regulable polarization.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of terahertz pulse generation, and more specifically, to a terahertz wave transmitter with tunable polarization state. Background technique [0002] Terahertz radiation is located between far-infrared and millimeter waves on the electromagnetic spectrum. The special position of this frequency band endows this frequency band with special properties. For example, terahertz frequency corresponds to the vibration energy level and rotational energy level of biological macromolecules, and corresponds to the Hydrogen bond energy and van der Waals force energy, many biomolecules have fingerprint spectra in this frequency band, which can be applied in material identification and identification; terahertz frequency band means greater information capacity, providing more information for communication, remote sensing, aerospace Good means of communication. Terahertz radiation has broad application...

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): G02F1/01G02F1/00
CPCG02F1/0009G02F1/0136
Inventor 吴晓君聂天晓肖猛孔德胤
Owner BEIHANG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap