Parametric oscillator for enhancing terahertz waves

A parametric oscillator and terahertz technology, applied in the field of terahertz waves, can solve the problems of low conversion efficiency and achieve the effect of wide tuning range and simple and reliable operation

Active Publication Date: 2020-10-16
TIANJIN UNIV
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The photonics method mainly extends from the near-infrared band to the terahertz band. The terahertz radiation source based on the photonics method can realize continuous tuning, good coherence, compact structure, etc., but this method still has the problem of low conversion efficiency

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
  • Parametric oscillator for enhancing terahertz waves
  • Parametric oscillator for enhancing terahertz waves
  • Parametric oscillator for enhancing terahertz waves

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0028] A parametric oscillator that enhances terahertz waves, such as figure 1 As shown, including the pump source 1, the first beam splitting prism 3, LiNbO 3 Crystal 9, second dichroic prism 4, first reflector 11, second reflector 12, third reflector 14, fourth reflector 15, fifth reflector 5, sixth reflector 6, seventh reflector 7 , the eighth mirror 8, the LiNbO 3The crystal 9 is rectangular in the y-z plane, and the first reflector 11, the second refle...

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
Wavelengthaaaaaaaaaa
Login to view more

Abstract

The invention discloses a parametric oscillator for enhancing terahertz waves. The parametric oscillator comprises a pumping source, a first beam splitter prism, a second beam splitter prism, a firstreflector, a second reflector, a third reflector, a fourth reflector, a fifth reflector, a sixth reflector, a seventh reflector and an eighth reflector. Pumping light emitted from a pumping source ischanged into transmission pumping light and reflection pumping light through the beam splitter prisms; the transmission pumping light is vertically incident to the LiNbO3 crystal; while phase matchingconditions are satisfied, the pumping light generates signal light in the LiNbO3 crystal through a parametric process; the signal light is oscillated and amplified in the two resonant cavities respectively, under the action of the beam splitter prisms and the reflectors, the pumping light forms oscillation around the crystal, and meanwhile, the pumping light and the signal light generate multiplebeams of terahertz waves in the crystal based on the action of optical parameters, so that the conversion efficiency from the pumping light to the terahertz waves is improved.

Description

technical field [0001] The invention belongs to the technical field of terahertz waves, and in particular relates to a parametric oscillator for enhancing terahertz waves. Background technique [0002] Terahertz (THz) waves, also known as far-infrared waves, refer to the 12 Hz (1THz) electromagnetic waves, in the electromagnetic spectrum, the terahertz band is between the millimeter wave and the infrared band, that is, the wavelength is between 30-3000 μm, and the frequency is between 0.1-10 THz. For a long time, there has been a lack of high-energy terahertz wave radiation sources and efficient detection methods, and there has been little application research on the terahertz band, making the terahertz band a window in the electromagnetic spectrum that urgently needs research breakthroughs. Because terahertz waves are in the intermediate transition zone between electronics and photonics, terahertz waves have many unique advantages: (1) Terahertz waves have low quantum ener...

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): H01S1/02G02F1/35G02F1/39
CPCG02F1/35G02F1/39H01S1/02
Inventor 姚建铨王思磊张雅婷郑程龙李继涛李梦瑶
Owner TIANJIN 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